--- _id: '17626' abstract: - lang: eng text: "Weak gravitational lensing is becoming a mature technique for constraining cosmological parameters, and future surveys will be able to constrain the dark energy equation of state \U0001D464. When analyzing galaxy surveys, redshift information has proven to be a valuable addition to angular shear correlations. We forecast parameter constraints on the triplet (Ω\U0001D45A,\U0001D464,\U0001D70E8) for a LSST-like photometric galaxy survey, using tomography of the shear-shear power spectrum, convergence peak counts and higher convergence moments. We find that redshift tomography with the power spectrum reduces the area of the 1⁢\U0001D70E confidence interval in (Ω\U0001D45A,\U0001D464) space by a factor of 8 with respect to the case of the single highest redshift bin. We also find that adding non-Gaussian information from the peak counts and higher-order moments of the convergence field and its spatial derivatives further reduces the constrained area in (Ω\U0001D45A,\U0001D464) by factors of 3 and 4, respectively. When we add cosmic microwave background parameter priors from Planck to our analysis, tomography improves power spectrum constraints by a factor of 3. Adding moments yields an improvement by an additional factor of 2, and adding both moments and peaks improves by almost a factor of 3 over power spectrum tomography alone. We evaluate the effect of uncorrected systematic photometric redshift errors on the parameter constraints. We find that different statistics lead to different bias directions in parameter space, suggesting the possibility of eliminating this bias via self-calibration." article_number: '063534' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Andrea full_name: Petri, Andrea last_name: Petri - first_name: Morgan full_name: May, Morgan last_name: May - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: 'Petri A, May M, Haiman Z. Cosmology with photometric weak lensing surveys: Constraints with redshift tomography of convergence peaks and moments. Physical Review D. 2016;94(6). doi:10.1103/physrevd.94.063534' apa: 'Petri, A., May, M., & Haiman, Z. (2016). Cosmology with photometric weak lensing surveys: Constraints with redshift tomography of convergence peaks and moments. Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.94.063534' chicago: 'Petri, Andrea, Morgan May, and Zoltán Haiman. “Cosmology with Photometric Weak Lensing Surveys: Constraints with Redshift Tomography of Convergence Peaks and Moments.” Physical Review D. American Physical Society, 2016. https://doi.org/10.1103/physrevd.94.063534.' ieee: 'A. Petri, M. May, and Z. Haiman, “Cosmology with photometric weak lensing surveys: Constraints with redshift tomography of convergence peaks and moments,” Physical Review D, vol. 94, no. 6. American Physical Society, 2016.' ista: 'Petri A, May M, Haiman Z. 2016. Cosmology with photometric weak lensing surveys: Constraints with redshift tomography of convergence peaks and moments. Physical Review D. 94(6), 063534.' mla: 'Petri, Andrea, et al. “Cosmology with Photometric Weak Lensing Surveys: Constraints with Redshift Tomography of Convergence Peaks and Moments.” Physical Review D, vol. 94, no. 6, 063534, American Physical Society, 2016, doi:10.1103/physrevd.94.063534.' short: A. Petri, M. May, Z. Haiman, Physical Review D 94 (2016). date_created: 2024-09-05T13:55:24Z date_published: 2016-09-30T00:00:00Z date_updated: 2024-09-24T08:54:34Z day: '30' doi: 10.1103/physrevd.94.063534 extern: '1' external_id: arxiv: - '1605.01100' intvolume: ' 94' issue: '6' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1605.01100' month: '09' oa: 1 oa_version: Preprint publication: Physical Review D publication_identifier: issn: - 2470-0010 - 2470-0029 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: 'Cosmology with photometric weak lensing surveys: Constraints with redshift tomography of convergence peaks and moments' type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 94 year: '2016' ... --- _id: '17628' abstract: - lang: eng text: "Constraining cosmology using weak gravitational lensing consists of comparing a measured feature vector of dimension \U0001D441\U0001D44F with its simulated counterpart. An accurate estimate of the \U0001D441\U0001D44F×\U0001D441\U0001D44F feature covariance matrix \U0001D402 is essential to obtain accurate parameter confidence intervals. When \U0001D402 is measured from a set of simulations, an important question is how large this set should be. To answer this question, we construct different ensembles of \U0001D441\U0001D45F realizations of the shear field, using a common randomization procedure that recycles the outputs from a smaller number \U0001D441\U0001D460≤\U0001D441\U0001D45F of independent ray-tracing \U0001D441-body simulations. We study parameter confidence intervals as a function of (\U0001D441\U0001D460, \U0001D441\U0001D45F) in the range 1≤\U0001D441\U0001D460≤200 and 1≤\U0001D441\U0001D45F≲105. Previous work [S. Dodelson and M. D. Schneider, Phys. Rev. D 88, 063537 (2013)] has shown that Gaussian noise in the feature vectors (from which the covariance is estimated) lead, at quadratic order, to an \U0001D442⁢(1/\U0001D441\U0001D45F) degradation of the parameter confidence intervals. Using a variety of lensing features measured in our simulations, including shear-shear power spectra and peak counts, we show that cubic and quartic covariance fluctuations lead to additional \U0001D442⁢(1/\U0001D4412\U0001D45F) error degradation that is not negligible when \U0001D441\U0001D45F is only a factor of few larger than \U0001D441\U0001D44F. We study the large \U0001D441\U0001D45F limit, and find that a single, 240  Mpc/ℎ sized 5123-particle \U0001D441-body simulation (\U0001D441\U0001D460=1) can be repeatedly recycled to produce as many as \U0001D441\U0001D45F=few×104 shear maps whose power spectra and high-significance peak counts can be treated as statistically independent. As a result, a small number of simulations (\U0001D441\U0001D460=1 or 2) is sufficient to forecast parameter confidence intervals at percent accuracy." article_number: '063524' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Andrea full_name: Petri, Andrea last_name: Petri - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Morgan full_name: May, Morgan last_name: May citation: ama: 'Petri A, Haiman Z, May M. Sample variance in weak lensing: How many simulations are required? Physical Review D. 2016;93(6). doi:10.1103/physrevd.93.063524' apa: 'Petri, A., Haiman, Z., & May, M. (2016). Sample variance in weak lensing: How many simulations are required? Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.93.063524' chicago: 'Petri, Andrea, Zoltán Haiman, and Morgan May. “Sample Variance in Weak Lensing: How Many Simulations Are Required?” Physical Review D. American Physical Society, 2016. https://doi.org/10.1103/physrevd.93.063524.' ieee: 'A. Petri, Z. Haiman, and M. May, “Sample variance in weak lensing: How many simulations are required?,” Physical Review D, vol. 93, no. 6. American Physical Society, 2016.' ista: 'Petri A, Haiman Z, May M. 2016. Sample variance in weak lensing: How many simulations are required? Physical Review D. 93(6), 063524.' mla: 'Petri, Andrea, et al. “Sample Variance in Weak Lensing: How Many Simulations Are Required?” Physical Review D, vol. 93, no. 6, 063524, American Physical Society, 2016, doi:10.1103/physrevd.93.063524.' short: A. Petri, Z. Haiman, M. May, Physical Review D 93 (2016). date_created: 2024-09-05T13:57:57Z date_published: 2016-03-24T00:00:00Z date_updated: 2024-09-24T09:17:03Z day: '24' doi: 10.1103/physrevd.93.063524 extern: '1' external_id: arxiv: - '1601.06792' intvolume: ' 93' issue: '6' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1601.06792' month: '03' oa: 1 oa_version: Preprint publication: Physical Review D publication_identifier: issn: - 2470-0010 - 2470-0029 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: 'Sample variance in weak lensing: How many simulations are required?' type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 93 year: '2016' ... --- _id: '17649' abstract: - lang: eng text: Weak lensing convergence peaks are a promising tool to probe nonlinear structure evolution at late times, providing additional cosmological information beyond second-order statistics. Previous theoretical and observational studies have shown that the cosmological constraints on Ωm and σ8 are improved by a factor of up to ~ 2 when peak counts and second-order statistics are combined, compared to using the latter alone. We study the origin of lensing peaks using observational data from the 154 deg2 Canada-France-Hawaii Telescope Lensing Survey. We found that while high peaks (with height κ >3.5 σκ, where σκ is the r.m.s. of the convergence κ) are typically due to one single massive halo of ~1015M⊙, low peaks (κ <~ σκ) are associated with constellations of 2-8 smaller halos (<~1013M⊙). In addition, halos responsible for forming low peaks are found to be significantly offset from the line-of-sight towards the peak center (impact parameter >~ their virial radii), compared with ~0.25 virial radii for halos linked with high peaks, hinting that low peaks are more immune to baryonic processes whose impact is confined to the inner regions of the dark matter halos. Our findings are in good agreement with results from the simulation work by Yang el al. (2011). article_number: '043533' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Jia full_name: Liu, Jia last_name: Liu - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: Liu J, Haiman Z. Origin of weak lensing convergence peaks. Physical Review D. 2016;94(4). doi:10.1103/physrevd.94.043533 apa: Liu, J., & Haiman, Z. (2016). Origin of weak lensing convergence peaks. Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.94.043533 chicago: Liu, Jia, and Zoltán Haiman. “Origin of Weak Lensing Convergence Peaks.” Physical Review D. American Physical Society, 2016. https://doi.org/10.1103/physrevd.94.043533. ieee: J. Liu and Z. Haiman, “Origin of weak lensing convergence peaks,” Physical Review D, vol. 94, no. 4. American Physical Society, 2016. ista: Liu J, Haiman Z. 2016. Origin of weak lensing convergence peaks. Physical Review D. 94(4), 043533. mla: Liu, Jia, and Zoltán Haiman. “Origin of Weak Lensing Convergence Peaks.” Physical Review D, vol. 94, no. 4, 043533, American Physical Society, 2016, doi:10.1103/physrevd.94.043533. short: J. Liu, Z. Haiman, Physical Review D 94 (2016). date_created: 2024-09-06T07:28:02Z date_published: 2016-08-26T00:00:00Z date_updated: 2024-09-24T12:59:05Z day: '26' doi: 10.1103/physrevd.94.043533 extern: '1' external_id: arxiv: - '1606.01318' intvolume: ' 94' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1606.01318' month: '08' oa: 1 oa_version: Preprint publication: Physical Review D publication_identifier: issn: - 2470-0010 - 2470-0029 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Origin of weak lensing convergence peaks type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 94 year: '2016' ... --- _id: '17654' abstract: - lang: eng text: We explore the formation of massive high-redshift Population III (Pop III) galaxies through photoionization feedback. We consider dark matter haloes formed from progenitors that have undergone no star formation as a result of early reionization and photoevaporation caused by a nearby galaxy. Once such a halo reaches ≈109 M⊙, corresponding to the Jeans mass of the photoheated intergalactic medium at z ≈ 7, pristine gas is able to collapse into the halo, potentially producing a massive Pop III starburst. We suggest that this scenario may explain the recent observation of strong He ii 1640 Å line emission in CR 7, which is consistent with ∼107 M⊙ of young Pop III stars. Such a large mass of Pop III stars is unlikely without the photoionization feedback scenario, because star formation is expected to inject metals into haloes above the atomic cooling threshold (∼108 M⊙ at z ≈ 7). We use merger trees to analytically estimate the abundance of observable Pop III galaxies formed through this channel, and find a number density of ≈10−7 Mpc−3 at z = 6.6 (the redshift of CR 7). This is approximately a factor of 10 lower than the density of Ly α emitters as bright as CR 7. article_processing_charge: No article_type: original author: - first_name: Eli full_name: Visbal, Eli last_name: Visbal - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Greg L. full_name: Bryan, Greg L. last_name: Bryan citation: ama: 'Visbal E, Haiman Z, Bryan GL. Formation of massive Population III galaxies through photoionization feedback: A possible explanation for CR 7. Monthly Notices of the Royal Astronomical Society: Letters. 2016;460(1):L59-L63. doi:10.1093/mnrasl/slw071' apa: 'Visbal, E., Haiman, Z., & Bryan, G. L. (2016). Formation of massive Population III galaxies through photoionization feedback: A possible explanation for CR 7. Monthly Notices of the Royal Astronomical Society: Letters. Oxford University Press. https://doi.org/10.1093/mnrasl/slw071' chicago: 'Visbal, Eli, Zoltán Haiman, and Greg L. Bryan. “Formation of Massive Population III Galaxies through Photoionization Feedback: A Possible Explanation for CR 7.” Monthly Notices of the Royal Astronomical Society: Letters. Oxford University Press, 2016. https://doi.org/10.1093/mnrasl/slw071.' ieee: 'E. Visbal, Z. Haiman, and G. L. Bryan, “Formation of massive Population III galaxies through photoionization feedback: A possible explanation for CR 7,” Monthly Notices of the Royal Astronomical Society: Letters, vol. 460, no. 1. Oxford University Press, pp. L59–L63, 2016.' ista: 'Visbal E, Haiman Z, Bryan GL. 2016. Formation of massive Population III galaxies through photoionization feedback: A possible explanation for CR 7. Monthly Notices of the Royal Astronomical Society: Letters. 460(1), L59–L63.' mla: 'Visbal, Eli, et al. “Formation of Massive Population III Galaxies through Photoionization Feedback: A Possible Explanation for CR 7.” Monthly Notices of the Royal Astronomical Society: Letters, vol. 460, no. 1, Oxford University Press, 2016, pp. L59–63, doi:10.1093/mnrasl/slw071.' short: 'E. Visbal, Z. Haiman, G.L. Bryan, Monthly Notices of the Royal Astronomical Society: Letters 460 (2016) L59–L63.' date_created: 2024-09-06T07:32:23Z date_published: 2016-04-14T00:00:00Z date_updated: 2024-09-24T14:19:51Z day: '14' doi: 10.1093/mnrasl/slw071 extern: '1' intvolume: ' 460' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnrasl/slw071 month: '04' oa: 1 oa_version: Published Version page: L59-L63 publication: 'Monthly Notices of the Royal Astronomical Society: Letters' publication_identifier: issn: - 1745-3925 - 1745-3933 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: 'Formation of massive Population III galaxies through photoionization feedback: A possible explanation for CR 7' type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 460 year: '2016' ... --- _id: '17656' abstract: - lang: eng text: We explore the evolution of stellar mass black hole binaries (BHBs) which are formed in the self-gravitating discs of active galactic nuclei (AGN). Hardening due to three-body scattering and gaseous drag are effective mechanisms that reduce the semimajor axis of a BHB to radii where gravitational waves take over, on time-scales shorter than the typical lifetime of the AGN disc. Taking observationally motivated assumptions for the rate of star formation in AGN discs, we find a rate of disc-induced BHB mergers (⁠| $\mathcal {R} \sim 3\ {\rm yr}^{-1}\ {\rm Gpc}^{-3}$ |⁠, but with large uncertainties) that is comparable with existing estimates of the field rate of BHB mergers, and the approximate BHB merger rate implied by the recent Advanced LIGO detection of GW150914. BHBs formed thorough this channel will frequently be associated with luminous AGN, which are relatively rare within the sky error regions of future gravitational wave detector arrays. This channel could also possess a (potentially transient) electromagnetic counterpart due to super-Eddington accretion on to the stellar mass black hole following the merger. article_processing_charge: No article_type: original author: - first_name: Nicholas C. full_name: Stone, Nicholas C. last_name: Stone - first_name: Brian D. full_name: Metzger, Brian D. last_name: Metzger - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: 'Stone NC, Metzger BD, Haiman Z. Assisted inspirals of stellar mass black holes embedded in AGN discs: Solving the ‘final au problem.’ Monthly Notices of the Royal Astronomical Society. 2016;464(1):946-954. doi:10.1093/mnras/stw2260' apa: 'Stone, N. C., Metzger, B. D., & Haiman, Z. (2016). Assisted inspirals of stellar mass black holes embedded in AGN discs: Solving the ‘final au problem.’ Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw2260' chicago: 'Stone, Nicholas C., Brian D. Metzger, and Zoltán Haiman. “Assisted Inspirals of Stellar Mass Black Holes Embedded in AGN Discs: Solving the ‘Final Au Problem.’” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2016. https://doi.org/10.1093/mnras/stw2260.' ieee: 'N. C. Stone, B. D. Metzger, and Z. Haiman, “Assisted inspirals of stellar mass black holes embedded in AGN discs: Solving the ‘final au problem,’” Monthly Notices of the Royal Astronomical Society, vol. 464, no. 1. Oxford University Press, pp. 946–954, 2016.' ista: 'Stone NC, Metzger BD, Haiman Z. 2016. Assisted inspirals of stellar mass black holes embedded in AGN discs: Solving the ‘final au problem’. Monthly Notices of the Royal Astronomical Society. 464(1), 946–954.' mla: 'Stone, Nicholas C., et al. “Assisted Inspirals of Stellar Mass Black Holes Embedded in AGN Discs: Solving the ‘Final Au Problem.’” Monthly Notices of the Royal Astronomical Society, vol. 464, no. 1, Oxford University Press, 2016, pp. 946–54, doi:10.1093/mnras/stw2260.' short: N.C. Stone, B.D. Metzger, Z. Haiman, Monthly Notices of the Royal Astronomical Society 464 (2016) 946–954. date_created: 2024-09-06T07:35:10Z date_published: 2016-09-08T00:00:00Z date_updated: 2024-09-25T07:05:41Z day: '08' doi: 10.1093/mnras/stw2260 extern: '1' intvolume: ' 464' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stw2260 month: '09' oa: 1 oa_version: Published Version page: 946-954 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: 'Assisted inspirals of stellar mass black holes embedded in AGN discs: Solving the ‘final au problem’' type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 464 year: '2016' ... --- _id: '17658' abstract: - lang: eng text: We study circumbinary accretion discs in the framework of the restricted three-body problem (R3Bp) and via numerically solving the height-integrated equations of viscous hydrodynamics. Varying the mass ratio of the binary, we find a pronounced change in the behaviour of the disc near mass ratio q ≡ Ms/Mp ∼ 0.04. For mass ratios above q = 0.04, solutions for the hydrodynamic flow transition from steady, to strongly fluctuating; a narrow annular gap in the surface density around the secondary's orbit changes to a hollow central cavity; and a spatial symmetry is lost, resulting in a lopsided disc. This phase transition is coincident with the mass ratio above which stable orbits do not exist around the L4 and L5 equilibrium points of the R3Bp. Using the disco code, we find that for thin discs, for which a gap or cavity can remain open, the mass ratio of the transition is relatively insensitive to disc viscosity and pressure. The q = 0.04 transition has relevance for the evolution of massive black hole binary+disc systems at the centres of galactic nuclei, as well as for young stellar binaries and possibly planets around brown dwarfs. article_processing_charge: No article_type: original author: - first_name: Daniel J. full_name: D'Orazio, Daniel J. last_name: D'Orazio - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Paul full_name: Duffell, Paul last_name: Duffell - first_name: Andrew full_name: MacFadyen, Andrew last_name: MacFadyen - first_name: Brian full_name: Farris, Brian last_name: Farris citation: ama: D’Orazio DJ, Haiman Z, Duffell P, MacFadyen A, Farris B. A transition in circumbinary accretion discs at a binary mass ratio of 1:25. Monthly Notices of the Royal Astronomical Society. 2016;459(3):2379-2393. doi:10.1093/mnras/stw792 apa: D’Orazio, D. J., Haiman, Z., Duffell, P., MacFadyen, A., & Farris, B. (2016). A transition in circumbinary accretion discs at a binary mass ratio of 1:25. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw792 chicago: D’Orazio, Daniel J., Zoltán Haiman, Paul Duffell, Andrew MacFadyen, and Brian Farris. “A Transition in Circumbinary Accretion Discs at a Binary Mass Ratio of 1:25.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2016. https://doi.org/10.1093/mnras/stw792. ieee: D. J. D’Orazio, Z. Haiman, P. Duffell, A. MacFadyen, and B. Farris, “A transition in circumbinary accretion discs at a binary mass ratio of 1:25,” Monthly Notices of the Royal Astronomical Society, vol. 459, no. 3. Oxford University Press, pp. 2379–2393, 2016. ista: D’Orazio DJ, Haiman Z, Duffell P, MacFadyen A, Farris B. 2016. A transition in circumbinary accretion discs at a binary mass ratio of 1:25. Monthly Notices of the Royal Astronomical Society. 459(3), 2379–2393. mla: D’Orazio, Daniel J., et al. “A Transition in Circumbinary Accretion Discs at a Binary Mass Ratio of 1:25.” Monthly Notices of the Royal Astronomical Society, vol. 459, no. 3, Oxford University Press, 2016, pp. 2379–93, doi:10.1093/mnras/stw792. short: D.J. D’Orazio, Z. Haiman, P. Duffell, A. MacFadyen, B. Farris, Monthly Notices of the Royal Astronomical Society 459 (2016) 2379–2393. date_created: 2024-09-06T07:36:39Z date_published: 2016-04-06T00:00:00Z date_updated: 2024-09-25T07:14:30Z day: '06' doi: 10.1093/mnras/stw792 extern: '1' intvolume: ' 459' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stw792 month: '04' oa: 1 oa_version: Published Version page: 2379-2393 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: A transition in circumbinary accretion discs at a binary mass ratio of 1:25 type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 459 year: '2016' ... --- _id: '17659' abstract: - lang: eng text: The recent discovery of the gravitational wave source GW150914 has revealed a coalescing binary black hole (BBH) with masses of ∼30 M⊙. Previous proposals for the origin of such a massive binary include Population III (PopIII) stars. PopIII stars are efficient producers of BBHs and of a gravitational wave background (GWB) in the 10–100 Hz band, and also of ionizing radiation in the early Universe. We quantify the relation between the amplitude of the GWB (Ωgw) and the electron scattering optical depth (τe), produced by PopIII stars, assuming that fesc ≈ 10 per cent of their ionizing radiation escapes into the intergalactic medium. We find that PopIII stars would produce a GWB that is detectable by the future O5 LIGO/Virgo if τe ≳ 0.07, consistent with the recent Planck measurement of τe = 0.055 ± 0.09. Moreover, the spectral index of the background from PopIII BBHs becomes as small as dln Ωgw/dln f ≲ 0.3 at f ≳ 30 Hz, which is significantly flatter than the value ∼2/3 generically produced by lower redshift and less-massive BBHs. A detection of the unique flattening at such low frequencies by the O5 LIGO/Virgo will indicate the existence of a high-chirp mass, high-redshift BBH population, which is consistent with the PopIII origin. A precise characterization of the spectral shape near 30–50 Hz by the Einstein Telescope could also constrain the PopIII initial mass function and star formation rate. article_processing_charge: No article_type: original author: - first_name: Kohei full_name: Inayoshi, Kohei last_name: Inayoshi - first_name: Kazumi full_name: Kashiyama, Kazumi last_name: Kashiyama - first_name: Eli full_name: Visbal, Eli last_name: Visbal - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: Inayoshi K, Kashiyama K, Visbal E, Haiman Z. Gravitational wave background from Population III binary black holes consistent with cosmic reionization. Monthly Notices of the Royal Astronomical Society. 2016;461(3):2722-2727. doi:10.1093/mnras/stw1431 apa: Inayoshi, K., Kashiyama, K., Visbal, E., & Haiman, Z. (2016). Gravitational wave background from Population III binary black holes consistent with cosmic reionization. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw1431 chicago: Inayoshi, Kohei, Kazumi Kashiyama, Eli Visbal, and Zoltán Haiman. “Gravitational Wave Background from Population III Binary Black Holes Consistent with Cosmic Reionization.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2016. https://doi.org/10.1093/mnras/stw1431. ieee: K. Inayoshi, K. Kashiyama, E. Visbal, and Z. Haiman, “Gravitational wave background from Population III binary black holes consistent with cosmic reionization,” Monthly Notices of the Royal Astronomical Society, vol. 461, no. 3. Oxford University Press, pp. 2722–2727, 2016. ista: Inayoshi K, Kashiyama K, Visbal E, Haiman Z. 2016. Gravitational wave background from Population III binary black holes consistent with cosmic reionization. Monthly Notices of the Royal Astronomical Society. 461(3), 2722–2727. mla: Inayoshi, Kohei, et al. “Gravitational Wave Background from Population III Binary Black Holes Consistent with Cosmic Reionization.” Monthly Notices of the Royal Astronomical Society, vol. 461, no. 3, Oxford University Press, 2016, pp. 2722–27, doi:10.1093/mnras/stw1431. short: K. Inayoshi, K. Kashiyama, E. Visbal, Z. Haiman, Monthly Notices of the Royal Astronomical Society 461 (2016) 2722–2727. date_created: 2024-09-06T07:37:31Z date_published: 2016-06-21T00:00:00Z date_updated: 2024-09-25T07:17:34Z day: '21' doi: 10.1093/mnras/stw1431 extern: '1' intvolume: ' 461' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stw1431 month: '06' oa: 1 oa_version: Published Version page: 2722-2727 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: Gravitational wave background from Population III binary black holes consistent with cosmic reionization type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 461 year: '2016' ... --- _id: '17666' abstract: - lang: eng text: We have investigated a recently proposed halo-based model, Camelus, for predicting weak-lensing peak counts, and compared its results over a collection of 162 cosmologies with those from N-body simulations. While counts from both models agree for peaks with S/N>1 (where S/N is the ratio of the peak height to the r.m.s. shape noise), we find ≈50% fewer counts for peaks near S/N=0 and significantly higher counts in the negative S/N tail. Adding shape noise reduces the differences to within 20% for all cosmologies. We also found larger covariances that are more sensitive to cosmological parameters. As a result, credibility regions in the {Ωm,σ8} are ≈30% larger. Even though the credible contours are commensurate, each model draws its predictive power from different types of peaks. Low peaks, especially those with 23). Our results confirm the importance of using a cosmology-dependent covariance with at least a 14\% improvement in parameter constraints. We identified the covariance estimation as the main driver behind differences in inference, and suggest possible ways to make Camelus even more useful as a highly accurate peak count emulator. article_number: '083506' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: José Manuel full_name: Zorrilla Matilla, José Manuel last_name: Zorrilla Matilla - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Daniel full_name: Hsu, Daniel last_name: Hsu - first_name: Arushi full_name: Gupta, Arushi last_name: Gupta - first_name: Andrea full_name: Petri, Andrea last_name: Petri citation: ama: Zorrilla Matilla JM, Haiman Z, Hsu D, Gupta A, Petri A. Do dark matter halos explain lensing peaks? Physical Review D. 2016;94(8). doi:10.1103/physrevd.94.083506 apa: Zorrilla Matilla, J. M., Haiman, Z., Hsu, D., Gupta, A., & Petri, A. (2016). Do dark matter halos explain lensing peaks? Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.94.083506 chicago: Zorrilla Matilla, José Manuel, Zoltán Haiman, Daniel Hsu, Arushi Gupta, and Andrea Petri. “Do Dark Matter Halos Explain Lensing Peaks?” Physical Review D. American Physical Society, 2016. https://doi.org/10.1103/physrevd.94.083506. ieee: J. M. Zorrilla Matilla, Z. Haiman, D. Hsu, A. Gupta, and A. Petri, “Do dark matter halos explain lensing peaks?,” Physical Review D, vol. 94, no. 8. American Physical Society, 2016. ista: Zorrilla Matilla JM, Haiman Z, Hsu D, Gupta A, Petri A. 2016. Do dark matter halos explain lensing peaks? Physical Review D. 94(8), 083506. mla: Zorrilla Matilla, José Manuel, et al. “Do Dark Matter Halos Explain Lensing Peaks?” Physical Review D, vol. 94, no. 8, 083506, American Physical Society, 2016, doi:10.1103/physrevd.94.083506. short: J.M. Zorrilla Matilla, Z. Haiman, D. Hsu, A. Gupta, A. Petri, Physical Review D 94 (2016). date_created: 2024-09-06T07:44:28Z date_published: 2016-10-04T00:00:00Z date_updated: 2024-09-25T07:49:17Z day: '04' doi: 10.1103/physrevd.94.083506 extern: '1' external_id: arxiv: - '1609.03973' intvolume: ' 94' issue: '8' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1609.03973' month: '10' oa: 1 oa_version: Preprint publication: Physical Review D publication_identifier: issn: - 2470-0010 - 2470-0029 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Do dark matter halos explain lensing peaks? type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 94 year: '2016' ... --- _id: '17669' abstract: - lang: eng text: 'Unprecedentedly precise cosmic microwave background (CMB) data are expected from ongoing and near-future CMB Stage-III and IV surveys, which will yield reconstructed CMB lensing maps with effective resolution approaching several arcminutes. The small-scale CMB lensing fluctuations receive non-negligible contributions from nonlinear structure in the late-time density field. These fluctuations are not fully characterized by traditional two-point statistics, such as the power spectrum. Here, we use N-body ray-tracing simulations of CMB lensing maps to examine two higher-order statistics: the lensing convergence one-point probability distribution function (PDF) and peak counts. We show that these statistics contain significant information not captured by the two-point function, and provide specific forecasts for the ongoing Stage-III Advanced Atacama Cosmology Telescope (AdvACT) experiment. Considering only the temperature-based reconstruction estimator, we forecast 9σ (PDF) and 6σ (peaks) detections of these statistics with AdvACT. Our simulation pipeline fully accounts for the non-Gaussianity of the lensing reconstruction noise, which is significant and cannot be neglected. Combining the power spectrum, PDF, and peak counts for AdvACT will tighten cosmological constraints in the Ωm-σ8 plane by ≈30%, compared to using the power spectrum alone.' article_number: '103501' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Jia full_name: Liu, Jia last_name: Liu - first_name: J. Colin full_name: Hill, J. Colin last_name: Hill - first_name: Blake D. full_name: Sherwin, Blake D. last_name: Sherwin - first_name: Andrea full_name: Petri, Andrea last_name: Petri - first_name: Vanessa full_name: Böhm, Vanessa last_name: Böhm - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: 'Liu J, Hill JC, Sherwin BD, Petri A, Böhm V, Haiman Z. CMB lensing beyond the power spectrum: Cosmological constraints from the one-point probability distribution function and peak counts. Physical Review D. 2016;94(10). doi:10.1103/physrevd.94.103501' apa: 'Liu, J., Hill, J. C., Sherwin, B. D., Petri, A., Böhm, V., & Haiman, Z. (2016). CMB lensing beyond the power spectrum: Cosmological constraints from the one-point probability distribution function and peak counts. Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.94.103501' chicago: 'Liu, Jia, J. Colin Hill, Blake D. Sherwin, Andrea Petri, Vanessa Böhm, and Zoltán Haiman. “CMB Lensing beyond the Power Spectrum: Cosmological Constraints from the One-Point Probability Distribution Function and Peak Counts.” Physical Review D. American Physical Society, 2016. https://doi.org/10.1103/physrevd.94.103501.' ieee: 'J. Liu, J. C. Hill, B. D. Sherwin, A. Petri, V. Böhm, and Z. Haiman, “CMB lensing beyond the power spectrum: Cosmological constraints from the one-point probability distribution function and peak counts,” Physical Review D, vol. 94, no. 10. American Physical Society, 2016.' ista: 'Liu J, Hill JC, Sherwin BD, Petri A, Böhm V, Haiman Z. 2016. CMB lensing beyond the power spectrum: Cosmological constraints from the one-point probability distribution function and peak counts. Physical Review D. 94(10), 103501.' mla: 'Liu, Jia, et al. “CMB Lensing beyond the Power Spectrum: Cosmological Constraints from the One-Point Probability Distribution Function and Peak Counts.” Physical Review D, vol. 94, no. 10, 103501, American Physical Society, 2016, doi:10.1103/physrevd.94.103501.' short: J. Liu, J.C. Hill, B.D. Sherwin, A. Petri, V. Böhm, Z. Haiman, Physical Review D 94 (2016). date_created: 2024-09-06T07:47:04Z date_published: 2016-11-02T00:00:00Z date_updated: 2024-09-25T08:01:19Z day: '02' doi: 10.1103/physrevd.94.103501 extern: '1' external_id: arxiv: - '1608.03169' intvolume: ' 94' issue: '10' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.1608.03169' month: '11' oa: 1 oa_version: Preprint publication: Physical Review D publication_identifier: issn: - 2470-0010 - 2470-0029 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: 'CMB lensing beyond the power spectrum: Cosmological constraints from the one-point probability distribution function and peak counts' type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 94 year: '2016' ... --- _id: '17672' abstract: - lang: eng text: Supermassive black hole binaries (SMBHBs) at sub-parsec separations should be common in galactic nuclei, as a result of frequent galaxy mergers. Hydrodynamical simulations of circum-binary discs predict strong periodic modulation of the mass accretion rate on time-scales comparable to the orbital period of the binary. As a result, SMBHBs may be recognized by the periodic modulation of their brightness. We conducted a statistical search for periodic variability in a sample of 35 383 spectroscopically confirmed quasars in the photometric data base of the Palomar Transient Factory (PTF). We analysed Lomb–Scargle periodograms and assessed the significance of our findings by modelling each individual quasar's variability as a damped random walk (DRW). We identified 50 quasars with significant periodicity beyond the DRW model, typically with short periods of a few hundred days. We find 33 of these to remain significant after a re-analysis of their periodograms including additional optical data from the intermediate-PTF and the Catalina Real-Time Transient Survey. Assuming that the observed periods correspond to the redshifted orbital periods of SMBHBs, we conclude that our findings are consistent with a population of unequal-mass SMBHBs, with a typical mass ratio as low as q ≡ M2/M1 ≈ 0.01. article_processing_charge: No article_type: original author: - first_name: M. full_name: Charisi, M. last_name: Charisi - first_name: I. full_name: Bartos, I. last_name: Bartos - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: A. M. full_name: Price-Whelan, A. M. last_name: Price-Whelan - first_name: M. J. full_name: Graham, M. J. last_name: Graham - first_name: E. C. full_name: Bellm, E. C. last_name: Bellm - first_name: R. R. full_name: Laher, R. R. last_name: Laher - first_name: S. full_name: Márka, S. last_name: Márka citation: ama: Charisi M, Bartos I, Haiman Z, et al. A population of short-period variable quasars from PTF as supermassive black hole binary candidates. Monthly Notices of the Royal Astronomical Society. 2016;463(2):2145-2171. doi:10.1093/mnras/stw1838 apa: Charisi, M., Bartos, I., Haiman, Z., Price-Whelan, A. M., Graham, M. J., Bellm, E. C., … Márka, S. (2016). A population of short-period variable quasars from PTF as supermassive black hole binary candidates. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw1838 chicago: Charisi, M., I. Bartos, Zoltán Haiman, A. M. Price-Whelan, M. J. Graham, E. C. Bellm, R. R. Laher, and S. Márka. “A Population of Short-Period Variable Quasars from PTF as Supermassive Black Hole Binary Candidates.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2016. https://doi.org/10.1093/mnras/stw1838. ieee: M. Charisi et al., “A population of short-period variable quasars from PTF as supermassive black hole binary candidates,” Monthly Notices of the Royal Astronomical Society, vol. 463, no. 2. Oxford University Press, pp. 2145–2171, 2016. ista: Charisi M, Bartos I, Haiman Z, Price-Whelan AM, Graham MJ, Bellm EC, Laher RR, Márka S. 2016. A population of short-period variable quasars from PTF as supermassive black hole binary candidates. Monthly Notices of the Royal Astronomical Society. 463(2), 2145–2171. mla: Charisi, M., et al. “A Population of Short-Period Variable Quasars from PTF as Supermassive Black Hole Binary Candidates.” Monthly Notices of the Royal Astronomical Society, vol. 463, no. 2, Oxford University Press, 2016, pp. 2145–71, doi:10.1093/mnras/stw1838. short: M. Charisi, I. Bartos, Z. Haiman, A.M. Price-Whelan, M.J. Graham, E.C. Bellm, R.R. Laher, S. Márka, Monthly Notices of the Royal Astronomical Society 463 (2016) 2145–2171. date_created: 2024-09-06T07:49:15Z date_published: 2016-07-28T00:00:00Z date_updated: 2024-09-25T08:28:42Z day: '28' doi: 10.1093/mnras/stw1838 extern: '1' intvolume: ' 463' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stw1838 month: '07' oa: 1 oa_version: Published Version page: 2145-2171 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: A population of short-period variable quasars from PTF as supermassive black hole binary candidates type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 463 year: '2016' ... --- _id: '17693' abstract: - lang: eng text: We perform one-dimensional radiation hydrodynamical simulations to solve accretion flows onto massive black holes (BHs) with a very high rate. Assuming that photon trapping limits the luminosity emerging from the central region to L≲LEdd, Inayoshi, Haiman & Ostriker (2016) have shown that an accretion flow settles to a "hyper-Eddington" solution, with a steady and isothermal (T≃8000 K) Bondi profile reaching ≳5000 times the Eddington accretion rate M˙Edd≡LEdd/c2. Here we address the possibility that gas accreting with finite angular momentum forms a bright nuclear accretion disc, with a luminosity exceeding the Eddington limit (1≲L/LEdd≲100). Combining our simulations with an analytic model, we find that a transition to steady hyper-Eddington accretion still occurs, as long as the luminosity remains below L/LEdd≲35 (MBH/10^4 M⊙)^3/2(n∞/10^5 cm^−3)(T∞/10^4 K)^−3/2(r⋆/10^14 cm)^−1/2, where n∞ and T∞ are the density and temperature of the ambient gas, and r⋆ is the radius of the photosphere, at which radiation emerges. If the luminosity exceeds this value, accretion becomes episodic. Our results can be accurately recovered in a toy model of an optically thick spherical shell, driven by radiation force into a collapsing medium. When the central source is dimmer than the above critical value, the expansion of the shell is halted and reversed by ram pressure of the collapsing medium, and by shell's weight. Our results imply that rapid, unimpeded hyper-Eddington accretion is possible even if the luminosity of the central source far exceeds the Eddington limit, and can be either steady or strongly episodic. article_processing_charge: No article_type: original author: - first_name: Yuya full_name: Sakurai, Yuya last_name: Sakurai - first_name: Kohei full_name: Inayoshi, Kohei last_name: Inayoshi - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: Sakurai Y, Inayoshi K, Haiman Z. Hyper-Eddington mass accretion on to a black hole with super-Eddington luminosity. Monthly Notices of the Royal Astronomical Society. 2016;461(4):4496-4504. doi:10.1093/mnras/stw1652 apa: Sakurai, Y., Inayoshi, K., & Haiman, Z. (2016). Hyper-Eddington mass accretion on to a black hole with super-Eddington luminosity. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw1652 chicago: Sakurai, Yuya, Kohei Inayoshi, and Zoltán Haiman. “Hyper-Eddington Mass Accretion on to a Black Hole with Super-Eddington Luminosity.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2016. https://doi.org/10.1093/mnras/stw1652. ieee: Y. Sakurai, K. Inayoshi, and Z. Haiman, “Hyper-Eddington mass accretion on to a black hole with super-Eddington luminosity,” Monthly Notices of the Royal Astronomical Society, vol. 461, no. 4. Oxford University Press, pp. 4496–4504, 2016. ista: Sakurai Y, Inayoshi K, Haiman Z. 2016. Hyper-Eddington mass accretion on to a black hole with super-Eddington luminosity. Monthly Notices of the Royal Astronomical Society. 461(4), 4496–4504. mla: Sakurai, Yuya, et al. “Hyper-Eddington Mass Accretion on to a Black Hole with Super-Eddington Luminosity.” Monthly Notices of the Royal Astronomical Society, vol. 461, no. 4, Oxford University Press, 2016, pp. 4496–504, doi:10.1093/mnras/stw1652. short: Y. Sakurai, K. Inayoshi, Z. Haiman, Monthly Notices of the Royal Astronomical Society 461 (2016) 4496–4504. date_created: 2024-09-06T08:39:53Z date_published: 2016-07-08T00:00:00Z date_updated: 2024-09-25T10:02:57Z day: '08' doi: 10.1093/mnras/stw1652 extern: '1' intvolume: ' 461' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stw1652 month: '07' oa: 1 oa_version: Published Version page: 4496-4504 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: Hyper-Eddington mass accretion on to a black hole with super-Eddington luminosity type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 461 year: '2016' ... --- _id: '17699' abstract: - lang: eng text: 'We quantify the presence of Ly\alpha\ damping wing absorption from a partially-neutral intergalactic medium (IGM) in the spectrum of the z=7.08 QSO, ULASJ1120+0641. Using a Bayesian framework, we simultaneously account for uncertainties in: (i) the intrinsic QSO emission spectrum; and (ii) the distribution of cosmic HI patches during the epoch of reionisation (EoR). For (i) we use a new intrinsic Ly\alpha\ emission line reconstruction method (Greig et al.), sampling a covariance matrix of emission line properties built from a large database of moderate-z QSOs. For (ii), we use the Evolution of 21-cm Structure (EOS; Mesinger et al.) simulations, which span a range of physically-motivated EoR models. We find strong evidence for the presence of damping wing absorption redward of Ly\alpha\ (where there is no contamination from the Ly\alpha\ forest). Our analysis implies that the EoR is not yet complete by z=7.1, with the volume-weighted IGM neutral fraction constrained to x¯HI=0.40+0.21−0.19 at 1σ (x¯HI=0.40+0.41−0.32 at 2σ). This result is insensitive to the EoR morphology. Our detection of significant neutral HI in the IGM at z=7.1 is consistent with the latest Planck 2016 measurements of the CMB Thompson scattering optical depth (Planck Collaboration XLVII).' article_number: stw3351 article_processing_charge: No article_type: original author: - first_name: Bradley full_name: Greig, Bradley last_name: Greig - first_name: Andrei full_name: Mesinger, Andrei last_name: Mesinger - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Robert A. full_name: Simcoe, Robert A. last_name: Simcoe citation: ama: Greig B, Mesinger A, Haiman Z, Simcoe RA. Are we witnessing the epoch of reionization at z=7.1 from the spectrum of J1120+0641? Monthly Notices of the Royal Astronomical Society. 2016. doi:10.1093/mnras/stw3351 apa: Greig, B., Mesinger, A., Haiman, Z., & Simcoe, R. A. (2016). Are we witnessing the epoch of reionization at z=7.1 from the spectrum of J1120+0641? Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw3351 chicago: Greig, Bradley, Andrei Mesinger, Zoltán Haiman, and Robert A. Simcoe. “Are We Witnessing the Epoch of Reionization at Z=7.1 from the Spectrum of J1120+0641?” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2016. https://doi.org/10.1093/mnras/stw3351. ieee: B. Greig, A. Mesinger, Z. Haiman, and R. A. Simcoe, “Are we witnessing the epoch of reionization at z=7.1 from the spectrum of J1120+0641?,” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2016. ista: Greig B, Mesinger A, Haiman Z, Simcoe RA. 2016. Are we witnessing the epoch of reionization at z=7.1 from the spectrum of J1120+0641? Monthly Notices of the Royal Astronomical Society., stw3351. mla: Greig, Bradley, et al. “Are We Witnessing the Epoch of Reionization at Z=7.1 from the Spectrum of J1120+0641?” Monthly Notices of the Royal Astronomical Society, stw3351, Oxford University Press, 2016, doi:10.1093/mnras/stw3351. short: B. Greig, A. Mesinger, Z. Haiman, R.A. Simcoe, Monthly Notices of the Royal Astronomical Society (2016). date_created: 2024-09-06T08:45:10Z date_published: 2016-12-24T00:00:00Z date_updated: 2024-09-25T11:19:08Z day: '24' doi: 10.1093/mnras/stw3351 extern: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stw3351 month: '12' oa: 1 oa_version: Published Version publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: Are we witnessing the epoch of reionization at z=7.1 from the spectrum of J1120+0641? type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 year: '2016' ... --- _id: '17700' abstract: - lang: eng text: We report the formation of intermediate-mass black holes (IMBHs) in suites of numerical N-body simulations of Population III remnant black holes (BHs) embedded in gas-rich protogalaxies at redshifts z≳10. We model the effects of gas drag on the BHs' orbits, and allow BHs to grow via gas accretion, including a mode of hyper-Eddington accretion in which photon trapping and rapid gas inflow suppress any negative radiative feedback. Most initial BH configurations lead to the formation of one (but never more than one) IMBH in the center of the protogalaxy, reaching a mass of 10^3−5M⊙ through hyper-Eddington growth. Our results suggest a viable pathway to forming the earliest massive BHs in the centers of early galaxies. We also find that the nuclear IMBH typically captures a stellar-mass BH companion, making these systems observable in gravitational waves as extreme mass-ratio inspirals (EMRIs) with eLISA. article_processing_charge: No article_type: original author: - first_name: Taeho full_name: Ryu, Taeho last_name: Ryu - first_name: Takamitsu L. full_name: Tanaka, Takamitsu L. last_name: Tanaka - first_name: Rosalba full_name: Perna, Rosalba last_name: Perna - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: Ryu T, Tanaka TL, Perna R, Haiman Z. Intermediate-mass black holes from Population III remnants in the first galactic nuclei. Monthly Notices of the Royal Astronomical Society. 2016;460(4):4122-4134. doi:10.1093/mnras/stw1241 apa: Ryu, T., Tanaka, T. L., Perna, R., & Haiman, Z. (2016). Intermediate-mass black holes from Population III remnants in the first galactic nuclei. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw1241 chicago: Ryu, Taeho, Takamitsu L. Tanaka, Rosalba Perna, and Zoltán Haiman. “Intermediate-Mass Black Holes from Population III Remnants in the First Galactic Nuclei.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2016. https://doi.org/10.1093/mnras/stw1241. ieee: T. Ryu, T. L. Tanaka, R. Perna, and Z. Haiman, “Intermediate-mass black holes from Population III remnants in the first galactic nuclei,” Monthly Notices of the Royal Astronomical Society, vol. 460, no. 4. Oxford University Press, pp. 4122–4134, 2016. ista: Ryu T, Tanaka TL, Perna R, Haiman Z. 2016. Intermediate-mass black holes from Population III remnants in the first galactic nuclei. Monthly Notices of the Royal Astronomical Society. 460(4), 4122–4134. mla: Ryu, Taeho, et al. “Intermediate-Mass Black Holes from Population III Remnants in the First Galactic Nuclei.” Monthly Notices of the Royal Astronomical Society, vol. 460, no. 4, Oxford University Press, 2016, pp. 4122–34, doi:10.1093/mnras/stw1241. short: T. Ryu, T.L. Tanaka, R. Perna, Z. Haiman, Monthly Notices of the Royal Astronomical Society 460 (2016) 4122–4134. date_created: 2024-09-06T08:46:28Z date_published: 2016-05-24T00:00:00Z date_updated: 2024-09-25T11:22:16Z day: '24' doi: 10.1093/mnras/stw1241 extern: '1' intvolume: ' 460' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stw1241 month: '05' oa: 1 oa_version: Published Version page: 4122-4134 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: Intermediate-mass black holes from Population III remnants in the first galactic nuclei type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 460 year: '2016' ... --- _id: '17709' abstract: - lang: eng text: 'We study very-high rate spherically symmetric accretion flows onto a massive black hole (BH; 10^2 < M_BH < 10^6 Msun) embedded in a dense gas cloud with a low abundance of metals, performing one-dimensional hydrodynamical simulations which include multi-frequency radiation transfer and non-equilibrium primordial chemistry. We find that rapid gas supply from the Bondi radius at a hyper-Eddington rate can occur without being impeded by radiation feedback when (n/10^5 cm^-3) > (M_BH/10^4Msun)^{-1}(T/10^4 K)^{3/2}, where n and T are the density and temperature of ambient gas outside of the Bondi radius. The resulting accretion rate in this regime is steady, and larger than 3000 times the Eddington rate. At lower Bondi rates, the accretion is episodic due to radiative feedback and the average rate is limited below the Eddington rate. For the hyper-Eddington case, the steady solution consists of two parts: a radiation-dominated central core, where photon trapping due to electron scattering is important, and an accreting envelope which follows a Bondi profile with T~8000 K. When the emergent luminosity is limited below the Eddington luminosity because of photon trapping, radiation from the central region does not affect the gas dynamics at larger scales. We apply our result to the rapid formation of massive BHs in protogalaxies with a virial temperature of T_vir> 10^4 K. Once a seed BH forms at the center of the galaxy, it can grow up to a maximum ~10^5 (T_vir/10^4 K) Msun via gas accretion independent of the initial BH mass. Finally, we discuss possible observational signatures of rapidly accreting BHs with/without allowance for dust. We suggest that these systems could explain Lya emitters without X-rays and luminous infrared sources with hot dust emission, respectively.' article_processing_charge: No article_type: original author: - first_name: Kohei full_name: Inayoshi, Kohei last_name: Inayoshi - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Jeremiah P. full_name: Ostriker, Jeremiah P. last_name: Ostriker citation: ama: Inayoshi K, Haiman Z, Ostriker JP. Hyper-Eddington accretion flows on to massive black holes. Monthly Notices of the Royal Astronomical Society. 2016;459(4):3738-3755. doi:10.1093/mnras/stw836 apa: Inayoshi, K., Haiman, Z., & Ostriker, J. P. (2016). Hyper-Eddington accretion flows on to massive black holes. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw836 chicago: Inayoshi, Kohei, Zoltán Haiman, and Jeremiah P. Ostriker. “Hyper-Eddington Accretion Flows on to Massive Black Holes.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2016. https://doi.org/10.1093/mnras/stw836. ieee: K. Inayoshi, Z. Haiman, and J. P. Ostriker, “Hyper-Eddington accretion flows on to massive black holes,” Monthly Notices of the Royal Astronomical Society, vol. 459, no. 4. Oxford University Press, pp. 3738–3755, 2016. ista: Inayoshi K, Haiman Z, Ostriker JP. 2016. Hyper-Eddington accretion flows on to massive black holes. Monthly Notices of the Royal Astronomical Society. 459(4), 3738–3755. mla: Inayoshi, Kohei, et al. “Hyper-Eddington Accretion Flows on to Massive Black Holes.” Monthly Notices of the Royal Astronomical Society, vol. 459, no. 4, Oxford University Press, 2016, pp. 3738–55, doi:10.1093/mnras/stw836. short: K. Inayoshi, Z. Haiman, J.P. Ostriker, Monthly Notices of the Royal Astronomical Society 459 (2016) 3738–3755. date_created: 2024-09-06T08:54:12Z date_published: 2016-04-12T00:00:00Z date_updated: 2024-09-25T12:00:22Z day: '12' doi: 10.1093/mnras/stw836 extern: '1' intvolume: ' 459' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stw836 month: '04' oa: 1 oa_version: Published Version page: 3738-3755 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: issn: - 0035-8711 - 1365-2966 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: Hyper-Eddington accretion flows on to massive black holes type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 459 year: '2016' ... --- _id: '7737' abstract: - lang: eng text: Genome-wide association studies (GWAS) have identified thousands of genetic variants associated with human complex traits. However, the genes or functional DNA elements through which these variants exert their effects on the traits are often unknown. We propose a method (called SMR) that integrates summary-level data from GWAS with data from expression quantitative trait locus (eQTL) studies to identify genes whose expression levels are associated with a complex trait because of pleiotropy. We apply the method to five human complex traits using GWAS data on up to 339,224 individuals and eQTL data on 5,311 individuals, and we prioritize 126 genes (for example, TRAF1 and ANKRD55 for rheumatoid arthritis and SNX19 and NMRAL1 for schizophrenia), of which 25 genes are new candidates; 77 genes are not the nearest annotated gene to the top associated GWAS SNP. These genes provide important leads to design future functional studies to understand the mechanism whereby DNA variation leads to complex trait variation. article_processing_charge: No article_type: original author: - first_name: Zhihong full_name: Zhu, Zhihong last_name: Zhu - first_name: Futao full_name: Zhang, Futao last_name: Zhang - first_name: Han full_name: Hu, Han last_name: Hu - first_name: Andrew full_name: Bakshi, Andrew last_name: Bakshi - first_name: Matthew Richard full_name: Robinson, Matthew Richard id: E5D42276-F5DA-11E9-8E24-6303E6697425 last_name: Robinson orcid: 0000-0001-8982-8813 - first_name: Joseph E full_name: Powell, Joseph E last_name: Powell - first_name: Grant W full_name: Montgomery, Grant W last_name: Montgomery - first_name: Michael E full_name: Goddard, Michael E last_name: Goddard - first_name: Naomi R full_name: Wray, Naomi R last_name: Wray - first_name: Peter M full_name: Visscher, Peter M last_name: Visscher - first_name: Jian full_name: Yang, Jian last_name: Yang citation: ama: Zhu Z, Zhang F, Hu H, et al. Integration of summary data from GWAS and eQTL studies predicts complex trait gene targets. Nature Genetics. 2016;48(5):481-487. doi:10.1038/ng.3538 apa: Zhu, Z., Zhang, F., Hu, H., Bakshi, A., Robinson, M. R., Powell, J. E., … Yang, J. (2016). Integration of summary data from GWAS and eQTL studies predicts complex trait gene targets. Nature Genetics. Springer Nature. https://doi.org/10.1038/ng.3538 chicago: Zhu, Zhihong, Futao Zhang, Han Hu, Andrew Bakshi, Matthew Richard Robinson, Joseph E Powell, Grant W Montgomery, et al. “Integration of Summary Data from GWAS and EQTL Studies Predicts Complex Trait Gene Targets.” Nature Genetics. Springer Nature, 2016. https://doi.org/10.1038/ng.3538. ieee: Z. Zhu et al., “Integration of summary data from GWAS and eQTL studies predicts complex trait gene targets,” Nature Genetics, vol. 48, no. 5. Springer Nature, pp. 481–487, 2016. ista: Zhu Z, Zhang F, Hu H, Bakshi A, Robinson MR, Powell JE, Montgomery GW, Goddard ME, Wray NR, Visscher PM, Yang J. 2016. Integration of summary data from GWAS and eQTL studies predicts complex trait gene targets. Nature Genetics. 48(5), 481–487. mla: Zhu, Zhihong, et al. “Integration of Summary Data from GWAS and EQTL Studies Predicts Complex Trait Gene Targets.” Nature Genetics, vol. 48, no. 5, Springer Nature, 2016, pp. 481–87, doi:10.1038/ng.3538. short: Z. Zhu, F. Zhang, H. Hu, A. Bakshi, M.R. Robinson, J.E. Powell, G.W. Montgomery, M.E. Goddard, N.R. Wray, P.M. Visscher, J. Yang, Nature Genetics 48 (2016) 481–487. date_created: 2020-04-30T10:50:26Z date_published: 2016-03-28T00:00:00Z date_updated: 2021-01-12T08:15:11Z day: '28' doi: 10.1038/ng.3538 extern: '1' intvolume: ' 48' issue: '5' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1038/ng.3538 month: '03' oa: 1 oa_version: Published Version page: 481-487 publication: Nature Genetics publication_identifier: issn: - 1061-4036 - 1546-1718 publication_status: published publisher: Springer Nature quality_controlled: '1' status: public title: Integration of summary data from GWAS and eQTL studies predicts complex trait gene targets type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 48 year: '2016' ... --- _id: '786' abstract: - lang: eng text: Lock-free concurrent algorithms guarantee that some concurrent operation will always make progress in a finite number of steps. Yet programmers prefer to treat concurrent code as if it were wait-free, guaranteeing that all operations always make progress. Unfortunately, designing wait-free algorithms is generally a very complex task, and the resulting algorithms are not always efficient. Although obtaining efficient wait-free algorithms has been a long-time goal for the theory community, most nonblocking commercial code is only lock-free. This article suggests a simple solution to this problem.We show that for a large class of lock-free algorithms, under scheduling conditions that approximate those found in commercial hardware architectures, lock-free algorithms behave as if they are wait-free. In other words, programmers can continue to design simple lock-free algorithms instead of complex wait-free ones, and in practice, they will get wait-free progress. Our main contribution is a new way of analyzing a general class of lock-free algorithms under a stochastic scheduler. Our analysis relates the individual performance of processes to the global performance of the system using Markov chain lifting between a complex per-process chain and a simpler system progress chain. We show that lock-free algorithms are not only wait-free with probability 1 but that in fact a general subset of lock-free algorithms can be closely bounded in terms of the average number of steps required until an operation completes. To the best of our knowledge, this is the first attempt to analyze progress conditions, typically stated in relation to a worst-case adversary, in a stochastic model capturing their expected asymptotic behavior. acknowledgement: Part of this work was performed while the first author was a postdoctoral associate at MIT CSAIL, where he was supported by the SNF Postdoctoral Fellows Program, NSF grant CCF-1217921, DoE ASCR grant ER26116/DE-SC0008923, and by grants from the Oracle and Intel corporations. The second author was supported in part by ISF grant 1696/14. The third author was supported in part by NSF grants CCF-1217921, CCF-1301926, IIS-1447786, and CCF-1561807, and the U.S. Department of Energy under grant DE-SC0008923, and by equipment grants from Intel Corporation. article_processing_charge: No arxiv: 1 author: - first_name: Dan-Adrian full_name: Alistarh, Dan-Adrian id: 4A899BFC-F248-11E8-B48F-1D18A9856A87 last_name: Alistarh orcid: 0000-0003-3650-940X - first_name: Keren full_name: Censor Hillel, Keren last_name: Censor Hillel - first_name: Nir full_name: Shavit, Nir last_name: Shavit citation: ama: Alistarh D-A, Censor Hillel K, Shavit N. Are lock free concurrent algorithms practically wait free . Journal of the ACM. 2016;63(4). doi:10.1145/2903136 apa: Alistarh, D.-A., Censor Hillel, K., & Shavit, N. (2016). Are lock free concurrent algorithms practically wait free . Journal of the ACM. ACM. https://doi.org/10.1145/2903136 chicago: Alistarh, Dan-Adrian, Keren Censor Hillel, and Nir Shavit. “Are Lock Free Concurrent Algorithms Practically Wait Free .” Journal of the ACM. ACM, 2016. https://doi.org/10.1145/2903136. ieee: D.-A. Alistarh, K. Censor Hillel, and N. Shavit, “Are lock free concurrent algorithms practically wait free ,” Journal of the ACM, vol. 63, no. 4. ACM, 2016. ista: Alistarh D-A, Censor Hillel K, Shavit N. 2016. Are lock free concurrent algorithms practically wait free . Journal of the ACM. 63(4). mla: Alistarh, Dan-Adrian, et al. “Are Lock Free Concurrent Algorithms Practically Wait Free .” Journal of the ACM, vol. 63, no. 4, ACM, 2016, doi:10.1145/2903136. short: D.-A. Alistarh, K. Censor Hillel, N. Shavit, Journal of the ACM 63 (2016). date_created: 2018-12-11T11:48:29Z date_published: 2016-09-01T00:00:00Z date_updated: 2023-02-23T13:19:04Z day: '01' doi: 10.1145/2903136 extern: '1' external_id: arxiv: - '1311.3200' intvolume: ' 63' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1311.3200 month: '09' oa: 1 oa_version: Preprint publication: Journal of the ACM publication_status: published publisher: ACM publist_id: '6870' quality_controlled: '1' status: public title: 'Are lock free concurrent algorithms practically wait free ' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 63 year: '2016' ... --- _id: '8020' abstract: - lang: eng text: Balance of cortical excitation and inhibition (EI) is thought to be disrupted in several neuropsychiatric conditions, yet it is not clear how it is maintained in the healthy human brain. When EI balance is disturbed during learning and memory in animal models, it can be restabilized via formation of inhibitory replicas of newly formed excitatory connections. Here we assess evidence for such selective inhibitory rebalancing in humans. Using fMRI repetition suppression we measure newly formed cortical associations in the human brain. We show that expression of these associations reduces over time despite persistence in behavior, consistent with inhibitory rebalancing. To test this, we modulated excitation/inhibition balance with transcranial direct current stimulation (tDCS). Using ultra-high-field (7T) MRI and spectroscopy, we show that reducing GABA allows cortical associations to be re-expressed. This suggests that in humans associative memories are stored in balanced excitatory-inhibitory ensembles that lie dormant unless latent inhibitory connections are unmasked. article_processing_charge: No article_type: original author: - first_name: H.C. full_name: Barron, H.C. last_name: Barron - first_name: Tim P full_name: Vogels, Tim P id: CB6FF8D2-008F-11EA-8E08-2637E6697425 last_name: Vogels orcid: 0000-0003-3295-6181 - first_name: U.E. full_name: Emir, U.E. last_name: Emir - first_name: T.R. full_name: Makin, T.R. last_name: Makin - first_name: J. full_name: O’Shea, J. last_name: O’Shea - first_name: S. full_name: Clare, S. last_name: Clare - first_name: S. full_name: Jbabdi, S. last_name: Jbabdi - first_name: R.J. full_name: Dolan, R.J. last_name: Dolan - first_name: T.E.J. full_name: Behrens, T.E.J. last_name: Behrens citation: ama: Barron HC, Vogels TP, Emir UE, et al. Unmasking latent inhibitory connections in human cortex to reveal dormant cortical memories. Neuron. 2016;90(1):191-203. doi:10.1016/j.neuron.2016.02.031 apa: Barron, H. C., Vogels, T. P., Emir, U. E., Makin, T. R., O’Shea, J., Clare, S., … Behrens, T. E. J. (2016). Unmasking latent inhibitory connections in human cortex to reveal dormant cortical memories. Neuron. Elsevier. https://doi.org/10.1016/j.neuron.2016.02.031 chicago: Barron, H.C., Tim P Vogels, U.E. Emir, T.R. Makin, J. O’Shea, S. Clare, S. Jbabdi, R.J. Dolan, and T.E.J. Behrens. “Unmasking Latent Inhibitory Connections in Human Cortex to Reveal Dormant Cortical Memories.” Neuron. Elsevier, 2016. https://doi.org/10.1016/j.neuron.2016.02.031. ieee: H. C. Barron et al., “Unmasking latent inhibitory connections in human cortex to reveal dormant cortical memories,” Neuron, vol. 90, no. 1. Elsevier, pp. 191–203, 2016. ista: Barron HC, Vogels TP, Emir UE, Makin TR, O’Shea J, Clare S, Jbabdi S, Dolan RJ, Behrens TEJ. 2016. Unmasking latent inhibitory connections in human cortex to reveal dormant cortical memories. Neuron. 90(1), 191–203. mla: Barron, H. C., et al. “Unmasking Latent Inhibitory Connections in Human Cortex to Reveal Dormant Cortical Memories.” Neuron, vol. 90, no. 1, Elsevier, 2016, pp. 191–203, doi:10.1016/j.neuron.2016.02.031. short: H.C. Barron, T.P. Vogels, U.E. Emir, T.R. Makin, J. O’Shea, S. Clare, S. Jbabdi, R.J. Dolan, T.E.J. Behrens, Neuron 90 (2016) 191–203. date_created: 2020-06-25T13:05:33Z date_published: 2016-04-06T00:00:00Z date_updated: 2021-01-12T08:16:34Z day: '06' ddc: - '570' doi: 10.1016/j.neuron.2016.02.031 extern: '1' external_id: pmid: - '26996082' file: - access_level: open_access checksum: 9ce7a1c64986dce0435c070285a7ef9b content_type: application/pdf creator: cziletti date_created: 2020-07-09T09:57:04Z date_updated: 2020-07-14T12:48:08Z file_id: '8104' file_name: 2016_Neuron_Barron.pdf file_size: 5334136 relation: main_file file_date_updated: 2020-07-14T12:48:08Z has_accepted_license: '1' intvolume: ' 90' issue: '1' language: - iso: eng license: https://creativecommons.org/licenses/by/4.0/ month: '04' oa: 1 oa_version: Published Version page: 191-203 pmid: 1 publication: Neuron publication_identifier: issn: - 0896-6273 publication_status: published publisher: Elsevier quality_controlled: '1' status: public title: Unmasking latent inhibitory connections in human cortex to reveal dormant cortical memories tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425 volume: 90 year: '2016' ... --- _id: '8094' abstract: - lang: eng text: 'With the accelerated development of robot technologies, optimal control becomes one of the central themes of research. In traditional approaches, the controller, by its internal functionality, finds appropriate actions on the basis of the history of sensor values, guided by the goals, intentions, objectives, learning schemes, and so forth. The idea is that the controller controls the world---the body plus its environment---as reliably as possible. This paper focuses on new lines of self-organization for developmental robotics. We apply the recently developed differential extrinsic synaptic plasticity to a muscle-tendon driven arm-shoulder system from the Myorobotics toolkit. In the experiments, we observe a vast variety of self-organized behavior patterns: when left alone, the arm realizes pseudo-random sequences of different poses. By applying physical forces, the system can be entrained into definite motion patterns like wiping a table. Most interestingly, after attaching an object, the controller gets in a functional resonance with the object''s internal dynamics, starting to shake spontaneously bottles half-filled with water or sensitively driving an attached pendulum into a circular mode. When attached to the crank of a wheel the neural system independently discovers how to rotate it. In this way, the robot discovers affordances of objects its body is interacting with.' article_processing_charge: No author: - first_name: Georg S full_name: Martius, Georg S id: 3A276B68-F248-11E8-B48F-1D18A9856A87 last_name: Martius - first_name: Rafael full_name: Hostettler, Rafael last_name: Hostettler - first_name: Alois full_name: Knoll, Alois last_name: Knoll - first_name: Ralf full_name: Der, Ralf last_name: Der citation: ama: 'Martius GS, Hostettler R, Knoll A, Der R. Self-organized control of an tendon driven arm by differential extrinsic plasticity. In: 15th International Conference on the Synthesis and Simulation of Living Systems. Vol 28. MIT Press; 2016:142-143. doi:10.7551/978-0-262-33936-0-ch029' apa: 'Martius, G. S., Hostettler, R., Knoll, A., & Der, R. (2016). Self-organized control of an tendon driven arm by differential extrinsic plasticity. In 15th International Conference on the Synthesis and Simulation of Living Systems (Vol. 28, pp. 142–143). Cancun, Mexico: MIT Press. https://doi.org/10.7551/978-0-262-33936-0-ch029' chicago: Martius, Georg S, Rafael Hostettler, Alois Knoll, and Ralf Der. “Self-Organized Control of an Tendon Driven Arm by Differential Extrinsic Plasticity.” In 15th International Conference on the Synthesis and Simulation of Living Systems, 28:142–43. MIT Press, 2016. https://doi.org/10.7551/978-0-262-33936-0-ch029. ieee: G. S. Martius, R. Hostettler, A. Knoll, and R. Der, “Self-organized control of an tendon driven arm by differential extrinsic plasticity,” in 15th International Conference on the Synthesis and Simulation of Living Systems, Cancun, Mexico, 2016, vol. 28, pp. 142–143. ista: 'Martius GS, Hostettler R, Knoll A, Der R. 2016. Self-organized control of an tendon driven arm by differential extrinsic plasticity. 15th International Conference on the Synthesis and Simulation of Living Systems. ALIFE 2016: Conference on the Synthesis and Simulation of Living Systems vol. 28, 142–143.' mla: Martius, Georg S., et al. “Self-Organized Control of an Tendon Driven Arm by Differential Extrinsic Plasticity.” 15th International Conference on the Synthesis and Simulation of Living Systems, vol. 28, MIT Press, 2016, pp. 142–43, doi:10.7551/978-0-262-33936-0-ch029. short: G.S. Martius, R. Hostettler, A. Knoll, R. Der, in:, 15th International Conference on the Synthesis and Simulation of Living Systems, MIT Press, 2016, pp. 142–143. conference: end_date: 2016-07-08 location: Cancun, Mexico name: 'ALIFE 2016: Conference on the Synthesis and Simulation of Living Systems' start_date: 2016-07-04 corr_author: '1' date_created: 2020-07-05T22:00:47Z date_published: 2016-09-01T00:00:00Z date_updated: 2025-07-10T11:55:05Z day: '01' ddc: - '610' department: - _id: ChLa - _id: GaTk doi: 10.7551/978-0-262-33936-0-ch029 ec_funded: 1 file: - access_level: open_access checksum: cff63e7a4b8ac466ba51a9c84153a940 content_type: application/pdf creator: cziletti date_created: 2020-07-06T12:59:09Z date_updated: 2020-07-14T12:48:09Z file_id: '8096' file_name: 2016_ProcALIFE_Martius.pdf file_size: 678670 relation: main_file file_date_updated: 2020-07-14T12:48:09Z has_accepted_license: '1' intvolume: ' 28' language: - iso: eng month: '09' oa: 1 oa_version: Published Version page: 142-143 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: 15th International Conference on the Synthesis and Simulation of Living Systems publication_identifier: isbn: - '9780262339360' publication_status: published publisher: MIT Press quality_controlled: '1' scopus_import: '1' status: public title: Self-organized control of an tendon driven arm by differential extrinsic plasticity tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 28 year: '2016' ... --- _id: '8128' abstract: - lang: eng text: The stimulus selectivity of synaptic currents in cortical neurons often shows a co-tuning of excitation and inhibition, but the mechanisms that underlie the emergence and plasticity of this co-tuning are not fully understood. Using a computational model, we show that an interaction of excitatory and inhibitory synaptic plasticity reproduces both the developmental and – when combined with a disinhibitory gate – the adult plasticity of excitatory and inhibitory receptive fields in auditory cortex. The co-tuning arises from inhibitory plasticity that balances excitation and inhibition, while excitatory stimulus selectivity can result from two different mechanisms. Inhibitory inputs with a broad stimulus tuning introduce a sliding threshold as in Bienenstock-Cooper-Munro rules, introducing an excitatory stimulus selectivity at the cost of a broader inhibitory receptive field. Alternatively, input asymmetries can be amplified by synaptic competition. The latter leaves any receptive field plasticity transient, a prediction we verify in recordings in auditory cortex. article_processing_charge: No author: - first_name: Claudia full_name: Clopath, Claudia last_name: Clopath - first_name: Tim P full_name: Vogels, Tim P id: CB6FF8D2-008F-11EA-8E08-2637E6697425 last_name: Vogels orcid: 0000-0003-3295-6181 - first_name: Robert C. full_name: Froemke, Robert C. last_name: Froemke - first_name: Henning full_name: Sprekeler, Henning last_name: Sprekeler citation: ama: Clopath C, Vogels TP, Froemke RC, Sprekeler H. Receptive field formation by interacting excitatory and inhibitory synaptic plasticity. bioRxiv. 2016. apa: Clopath, C., Vogels, T. P., Froemke, R. C., & Sprekeler, H. (2016). Receptive field formation by interacting excitatory and inhibitory synaptic plasticity. bioRxiv. Cold Spring Harbor Laboratory. chicago: Clopath, Claudia, Tim P Vogels, Robert C. Froemke, and Henning Sprekeler. “Receptive Field Formation by Interacting Excitatory and Inhibitory Synaptic Plasticity.” BioRxiv. Cold Spring Harbor Laboratory, 2016. ieee: C. Clopath, T. P. Vogels, R. C. Froemke, and H. Sprekeler, “Receptive field formation by interacting excitatory and inhibitory synaptic plasticity,” bioRxiv. Cold Spring Harbor Laboratory, 2016. ista: Clopath C, Vogels TP, Froemke RC, Sprekeler H. 2016. Receptive field formation by interacting excitatory and inhibitory synaptic plasticity. bioRxiv, . mla: Clopath, Claudia, et al. “Receptive Field Formation by Interacting Excitatory and Inhibitory Synaptic Plasticity.” BioRxiv, Cold Spring Harbor Laboratory, 2016. short: C. Clopath, T.P. Vogels, R.C. Froemke, H. Sprekeler, BioRxiv (2016). date_created: 2020-07-16T12:26:55Z date_published: 2016-07-29T00:00:00Z date_updated: 2021-01-12T08:17:02Z day: '29' extern: '1' language: - iso: eng main_file_link: - open_access: '1' url: 'https://doi.org/10.1101/066589 ' month: '07' oa: 1 oa_version: Preprint page: '43' publication: bioRxiv publication_status: published publisher: Cold Spring Harbor Laboratory status: public title: Receptive field formation by interacting excitatory and inhibitory synaptic plasticity type: preprint user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425 year: '2016' ... --- _id: '8241' abstract: - lang: eng text: 'Background: Anticancer vaccines could represent a valuable complementary strategy to established therapies, especially in settings of early stage and minimal residual disease. HER-2 is an important target for immunotherapy and addressed by the monoclonal antibody trastuzumab. We have previously generated HER-2 mimotope peptides from phage display libraries. The synthesized peptides were coupled to carriers and applied for epitope-specific induction of trastuzumab-like IgG. For simplification and to avoid methodological limitations of synthesis and coupling chemistry, we herewith present a novel and optimized approach by using adeno-associated viruses (AAV) as effective and high-density mimotope-display system, which can be directly used for vaccination. Methods: An AAV capsid display library was constructed by genetically incorporating random peptides in a plasmid encoding the wild-type AAV2 capsid protein. AAV clones, expressing peptides specifically reactive to trastuzumab, were employed to immunize BALB/c mice. Antibody titers against human HER-2 were determined, and the isotype composition and functional properties of these were tested. Finally, prophylactically immunized mice were challenged with human HER-2 transfected mouse D2F2/E2 cells. Results: HER-2 mimotope AAV-vaccines induced antibodies specific to human HER-2. Two clones were selected for immunization of mice, which were subsequently grafted D2F2/E2 cells. Both mimotope AAV clones delayed the growth of tumors significantly, as compared to controls. Conclusion: In this study, a novel mimotope AAV-based platform was created allowing the isolation of mimotopes, which can be directly used as anticancer vaccines. The example of trastuzumab AAV-mimotopes demonstrates that this vaccine strategy could help to establish active immunotherapy for breast-cancer patients.' article_number: e1171446 article_processing_charge: No article_type: original author: - first_name: Josef full_name: Singer, Josef last_name: Singer - first_name: Krisztina full_name: Manzano-Szalai, Krisztina last_name: Manzano-Szalai - first_name: Judit full_name: Fazekas, Judit id: 36432834-F248-11E8-B48F-1D18A9856A87 last_name: Fazekas orcid: 0000-0002-8777-3502 - first_name: Kathrin full_name: Thell, Kathrin last_name: Thell - first_name: Anna full_name: Bentley-Lukschal, Anna last_name: Bentley-Lukschal - first_name: Caroline full_name: Stremnitzer, Caroline last_name: Stremnitzer - first_name: Franziska full_name: Roth-Walter, Franziska last_name: Roth-Walter - first_name: Margit full_name: Weghofer, Margit last_name: Weghofer - first_name: Mirko full_name: Ritter, Mirko last_name: Ritter - first_name: Kerstin full_name: Pino Tossi, Kerstin last_name: Pino Tossi - first_name: Markus full_name: Hörer, Markus last_name: Hörer - first_name: Uwe full_name: Michaelis, Uwe last_name: Michaelis - first_name: Erika full_name: Jensen-Jarolim, Erika last_name: Jensen-Jarolim citation: ama: Singer J, Manzano-Szalai K, Singer J, et al. Proof of concept study with an HER-2 mimotope anticancer vaccine deduced from a novel AAV-mimotope library platform. OncoImmunology. 2016;5(7). doi:10.1080/2162402x.2016.1171446 apa: Singer, J., Manzano-Szalai, K., Singer, J., Thell, K., Bentley-Lukschal, A., Stremnitzer, C., … Jensen-Jarolim, E. (2016). Proof of concept study with an HER-2 mimotope anticancer vaccine deduced from a novel AAV-mimotope library platform. OncoImmunology. Taylor & Francis. https://doi.org/10.1080/2162402x.2016.1171446 chicago: Singer, Josef, Krisztina Manzano-Szalai, Judit Singer, Kathrin Thell, Anna Bentley-Lukschal, Caroline Stremnitzer, Franziska Roth-Walter, et al. “Proof of Concept Study with an HER-2 Mimotope Anticancer Vaccine Deduced from a Novel AAV-Mimotope Library Platform.” OncoImmunology. Taylor & Francis, 2016. https://doi.org/10.1080/2162402x.2016.1171446. ieee: J. Singer et al., “Proof of concept study with an HER-2 mimotope anticancer vaccine deduced from a novel AAV-mimotope library platform,” OncoImmunology, vol. 5, no. 7. Taylor & Francis, 2016. ista: Singer J, Manzano-Szalai K, Singer J, Thell K, Bentley-Lukschal A, Stremnitzer C, Roth-Walter F, Weghofer M, Ritter M, Pino Tossi K, Hörer M, Michaelis U, Jensen-Jarolim E. 2016. Proof of concept study with an HER-2 mimotope anticancer vaccine deduced from a novel AAV-mimotope library platform. OncoImmunology. 5(7), e1171446. mla: Singer, Josef, et al. “Proof of Concept Study with an HER-2 Mimotope Anticancer Vaccine Deduced from a Novel AAV-Mimotope Library Platform.” OncoImmunology, vol. 5, no. 7, e1171446, Taylor & Francis, 2016, doi:10.1080/2162402x.2016.1171446. short: J. Singer, K. Manzano-Szalai, J. Singer, K. Thell, A. Bentley-Lukschal, C. Stremnitzer, F. Roth-Walter, M. Weghofer, M. Ritter, K. Pino Tossi, M. Hörer, U. Michaelis, E. Jensen-Jarolim, OncoImmunology 5 (2016). date_created: 2020-08-10T11:54:03Z date_published: 2016-06-30T00:00:00Z date_updated: 2021-01-12T08:17:41Z day: '30' doi: 10.1080/2162402x.2016.1171446 extern: '1' intvolume: ' 5' issue: '7' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1080/2162402X.2016.1171446 month: '06' oa: 1 oa_version: Published Version publication: OncoImmunology publication_identifier: issn: - 2162-402X publication_status: published publisher: Taylor & Francis quality_controlled: '1' status: public title: Proof of concept study with an HER-2 mimotope anticancer vaccine deduced from a novel AAV-mimotope library platform type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 5 year: '2016' ...