[{"scopus_import":"1","oa_version":"None","volume":3030,"day":"14","month":"03","type":"conference","article_processing_charge":"No","language":[{"iso":"eng"}],"publication":"AIP Conference Proceedings","issue":"1","publisher":"AIP Publishing","conference":{"start_date":"2022-10-26","end_date":"2022-10-29","name":"ICCMSE: International Conference of Computational Methods in Sciences and Engiineering","location":"Virtual"},"_id":"15296","abstract":[{"lang":"eng","text":"In this paper we build a constructive algorithm that returns a rectifiable curve that connects two points in a weakly convex set in a Hilbert space. We have proven that this algorithm converges and obtained an estimate on the curve’s length and compare the length of the curve obtained to known results."}],"intvolume":"      3030","status":"public","date_updated":"2024-04-08T07:40:53Z","publication_status":"published","author":[{"first_name":"Mariana","full_name":"Lopushanski, Mariana","last_name":"Lopushanski"},{"full_name":"Ivanov, Grigory","last_name":"Ivanov","id":"87744F66-5C6F-11EA-AFE0-D16B3DDC885E","first_name":"Grigory"}],"date_published":"2024-03-14T00:00:00Z","department":[{"_id":"UlWa"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"A constructive algorithm for building rectifiable curves in weakly convex sets","article_number":"080002","citation":{"ista":"Lopushanski M, Ivanov G. 2024. A constructive algorithm for building rectifiable curves in weakly convex sets. AIP Conference Proceedings. ICCMSE: International Conference of Computational Methods in Sciences and Engiineering vol. 3030, 080002.","ama":"Lopushanski M, Ivanov G. A constructive algorithm for building rectifiable curves in weakly convex sets. In: <i>AIP Conference Proceedings</i>. Vol 3030. AIP Publishing; 2024. doi:<a href=\"https://doi.org/10.1063/5.0195908\">10.1063/5.0195908</a>","chicago":"Lopushanski, Mariana, and Grigory Ivanov. “A Constructive Algorithm for Building Rectifiable Curves in Weakly Convex Sets.” In <i>AIP Conference Proceedings</i>, Vol. 3030. AIP Publishing, 2024. <a href=\"https://doi.org/10.1063/5.0195908\">https://doi.org/10.1063/5.0195908</a>.","apa":"Lopushanski, M., &#38; Ivanov, G. (2024). A constructive algorithm for building rectifiable curves in weakly convex sets. In <i>AIP Conference Proceedings</i> (Vol. 3030). Virtual: AIP Publishing. <a href=\"https://doi.org/10.1063/5.0195908\">https://doi.org/10.1063/5.0195908</a>","short":"M. Lopushanski, G. Ivanov, in:, AIP Conference Proceedings, AIP Publishing, 2024.","mla":"Lopushanski, Mariana, and Grigory Ivanov. “A Constructive Algorithm for Building Rectifiable Curves in Weakly Convex Sets.” <i>AIP Conference Proceedings</i>, vol. 3030, no. 1, 080002, AIP Publishing, 2024, doi:<a href=\"https://doi.org/10.1063/5.0195908\">10.1063/5.0195908</a>.","ieee":"M. Lopushanski and G. Ivanov, “A constructive algorithm for building rectifiable curves in weakly convex sets,” in <i>AIP Conference Proceedings</i>, Virtual, 2024, vol. 3030, no. 1."},"publication_identifier":{"issn":["0094-243X"],"eissn":["1551-7616"]},"quality_controlled":"1","date_created":"2024-04-07T22:00:55Z","doi":"10.1063/5.0195908","year":"2024"},{"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","title":"Self-regulating the early growth of black holes through global warming","quality_controlled":"1","year":"2012","date_created":"2024-09-06T07:29:59Z","doi":"10.1063/1.4754372","citation":{"ama":"Haiman Z, Tanaka T, Perna R. Self-regulating the early growth of black holes through global warming. In: <i>AIP Conference Proceedings</i>. Vol 1480. American Institute of Physics; 2012:303-308. doi:<a href=\"https://doi.org/10.1063/1.4754372\">10.1063/1.4754372</a>","ista":"Haiman Z, Tanaka T, Perna R. 2012. Self-regulating the early growth of black holes through global warming. AIP Conference Proceedings. FIRST STARS IV - From Hayashi to the Future vol. 1480, 303–308.","apa":"Haiman, Z., Tanaka, T., &#38; Perna, R. (2012). Self-regulating the early growth of black holes through global warming. In <i>AIP Conference Proceedings</i> (Vol. 1480, pp. 303–308). Kyoto, Japan: American Institute of Physics. <a href=\"https://doi.org/10.1063/1.4754372\">https://doi.org/10.1063/1.4754372</a>","chicago":"Haiman, Zoltán, Takamitsu Tanaka, and Rosalba Perna. “Self-Regulating the Early Growth of Black Holes through Global Warming.” In <i>AIP Conference Proceedings</i>, 1480:303–8. American Institute of Physics, 2012. <a href=\"https://doi.org/10.1063/1.4754372\">https://doi.org/10.1063/1.4754372</a>.","ieee":"Z. Haiman, T. Tanaka, and R. Perna, “Self-regulating the early growth of black holes through global warming,” in <i>AIP Conference Proceedings</i>, Kyoto, Japan, 2012, vol. 1480, pp. 303–308.","mla":"Haiman, Zoltán, et al. “Self-Regulating the Early Growth of Black Holes through Global Warming.” <i>AIP Conference Proceedings</i>, vol. 1480, American Institute of Physics, 2012, pp. 303–08, doi:<a href=\"https://doi.org/10.1063/1.4754372\">10.1063/1.4754372</a>.","short":"Z. Haiman, T. Tanaka, R. Perna, in:, AIP Conference Proceedings, American Institute of Physics, 2012, pp. 303–308."},"publication_identifier":{"issn":["0094-243X"]},"article_processing_charge":"No","conference":{"location":"Kyoto, Japan","name":"FIRST STARS IV - From Hayashi to the Future","end_date":"2012-05-25","start_date":"2012-05-21"},"publisher":"American Institute of Physics","language":[{"iso":"eng"}],"publication":"AIP Conference Proceedings","extern":"1","day":"12","page":"303-308","volume":1480,"oa_version":"None","scopus_import":"1","type":"conference","month":"09","author":[{"first_name":"Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman","full_name":"Haiman, Zoltán"},{"first_name":"Takamitsu","full_name":"Tanaka, Takamitsu","last_name":"Tanaka"},{"full_name":"Perna, Rosalba","last_name":"Perna","first_name":"Rosalba"}],"publication_status":"published","date_published":"2012-09-12T00:00:00Z","main_file_link":[{"url":"https://doi.org/10.1063/1.4754372"}],"date_updated":"2024-09-24T13:16:41Z","status":"public","_id":"17651","abstract":[{"lang":"eng","text":"A decade after their first discovery, the origin of giant supermassive black holes (SMBHs), with masses in excess of 109 Msolar, at redshifts as early as z > 6, remains a puzzle. One possibility is that stellar-mass ``seed'' BHs, left behind by the first stars, accrete gas at close to the Eddington limit during a large fraction (>~ 50%) of the time. While maintaining such a high accretion rate may itself be difficult, here we focus on another, less commonly discussed problem in this scenario: unless BH seed formation and growth are preferentially suppressed in less massive protogalaxies, the mass density in M~106Msolar SMBHs at z ~ 6 already exceeds the locally observed SMBH mass density by several orders of magnitude. We show that the X-rays from the earliest accreting BHs themselves can cause a self-regulation, by partially ionizing and heating the intergalactic medium (IGM). This ``global warming'' suppresses the formation and growth of subsequent generations of BHs in low-mass halos, and can produce excellent agreement with recent estimates of the z = 6 SMBH mass function, without impeding the growth of the largest (M>~109Msolar) holes, which reside in the most massive galaxies that formed first. The proposed gravitational-wave observatory eLISA could detect several tens of major mergers between SMBHs at z > 6."}],"intvolume":"      1480"},{"title":"The origin and detection of high-redshift supermassive black holes","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","year":"2010","date_created":"2024-09-06T07:41:39Z","quality_controlled":"1","oa":1,"citation":{"mla":"Haiman, Zoltán, et al. “The Origin and Detection of High-Redshift Supermassive Black Holes.” <i>AIP Conference Proceedings</i>, vol. 1294, no. 1, American Institute of Physics, 2010, pp. 215–24, doi:<a href=\"https://doi.org/10.1063/1.3518857\">10.1063/1.3518857</a>.","ieee":"Z. Haiman, D. J. Whalen, V. Bromm, and N. Yoshida, “The origin and detection of high-redshift supermassive black holes,” in <i>AIP Conference Proceedings</i>, Austin, TX, United States, 2010, vol. 1294, no. 1, pp. 215–224.","short":"Z. Haiman, D.J. Whalen, V. Bromm, N. Yoshida, in:, AIP Conference Proceedings, American Institute of Physics, 2010, pp. 215–224.","ista":"Haiman Z, Whalen DJ, Bromm V, Yoshida N. 2010. The origin and detection of high-redshift supermassive black holes. AIP Conference Proceedings. The First Stars and Galaxies: Challenges for the Next Decade vol. 1294, 215–224.","ama":"Haiman Z, Whalen DJ, Bromm V, Yoshida N. The origin and detection of high-redshift supermassive black holes. In: <i>AIP Conference Proceedings</i>. Vol 1294. American Institute of Physics; 2010:215-224. doi:<a href=\"https://doi.org/10.1063/1.3518857\">10.1063/1.3518857</a>","chicago":"Haiman, Zoltán, Daniel J. Whalen, Volker Bromm, and Naoki Yoshida. “The Origin and Detection of High-Redshift Supermassive Black Holes.” In <i>AIP Conference Proceedings</i>, 1294:215–24. American Institute of Physics, 2010. <a href=\"https://doi.org/10.1063/1.3518857\">https://doi.org/10.1063/1.3518857</a>.","apa":"Haiman, Z., Whalen, D. J., Bromm, V., &#38; Yoshida, N. (2010). The origin and detection of high-redshift supermassive black holes. In <i>AIP Conference Proceedings</i> (Vol. 1294, pp. 215–224). Austin, TX, United States: American Institute of Physics. <a href=\"https://doi.org/10.1063/1.3518857\">https://doi.org/10.1063/1.3518857</a>"},"publisher":"American Institute of Physics","issue":"1","publication":"AIP Conference Proceedings","extern":"1","article_processing_charge":"No","type":"conference","page":"215-224","day":"03","volume":1294,"arxiv":1,"publication_status":"published","status":"public","_id":"17664","intvolume":"      1294","abstract":[{"text":"Supermassive black holes (SMBHs) are common in local galactic nuclei, and SMBHs as massive as several billion solar masses already exist at redshift z=6. These earliest SMBHs may arise by the combination of Eddington-limited growth and mergers of stellar-mass seed BHs left behind by the first generation of metal-free stars, or by the rapid direct collapse of gas in rare special environments where the gas can avoid fragmenting into stars. In this contribution, I review these two competing scenarios. I also briefly mention some more exotic ideas and how the different models may be distinguished in the future by LISA and other instruments.","lang":"eng"}],"main_file_link":[{"url":" https://doi.org/10.48550/arXiv.1007.4741","open_access":"1"}],"doi":"10.1063/1.3518857","publication_identifier":{"issn":["0094-243X"]},"conference":{"start_date":"2010-03-08","end_date":"2010-03-11","name":"The First Stars and Galaxies: Challenges for the Next Decade","location":"Austin, TX, United States"},"language":[{"iso":"eng"}],"external_id":{"arxiv":["1007.4741"]},"month":"11","oa_version":"Preprint","scopus_import":"1","date_published":"2010-11-03T00:00:00Z","author":[{"id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman","full_name":"Haiman, Zoltán","first_name":"Zoltán"},{"last_name":"Whalen","full_name":"Whalen, Daniel J.","first_name":"Daniel J."},{"last_name":"Bromm","full_name":"Bromm, Volker","first_name":"Volker"},{"first_name":"Naoki","last_name":"Yoshida","full_name":"Yoshida, Naoki"}],"date_updated":"2024-09-25T07:40:43Z"},{"main_file_link":[{"url":"https://doi.org/10.1063/1.2905582"}],"date_updated":"2024-09-30T07:46:06Z","status":"public","abstract":[{"lang":"eng","text":"With the help of numerical simulations, we examine two aspects of feedback from the first generation of stars on later star formation. First, we investigate the impact of relic HII regions on forming halos. We find that the positive and negative effects of such feedback nearly cancel because the increase in entropy due to heating is balanced by the increase in the H 2 fraction due to the free electrons. However, these halos can be delayed more easily by a background Lyman-Werner flux. Second, we show that HD cooling is important in halos which have been ionized and allowed to recombine. Gas is allowed to cool to the CMB temperature at densities around n∼10 4cm-3, reducing the accreted mass by a factor of a few. However, as the collapse proceeds, the central gas density exceeds the critical density of HD and heats until HD cooling is no longer important. Therefore the behaviour of the (smaller mass) core is relatively unaffected by HD cooling."}],"_id":"17751","author":[{"first_name":"Greg L.","full_name":"Bryan, Greg L.","last_name":"Bryan"},{"first_name":"Ian D.","full_name":"McGreer, Ian D.","last_name":"McGreer"},{"first_name":"Andrei","last_name":"Mesinger","full_name":"Mesinger, Andrei"},{"full_name":"Haiman, Zoltán","last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","first_name":"Zoltán"}],"publication_status":"published","date_published":"2008-03-11T00:00:00Z","day":"11","oa_version":"None","scopus_import":"1","type":"conference","month":"03","article_processing_charge":"No","conference":{"location":"Santa Fe, NM, United States","name":"FIRST STARS III: First Stars II Conference","end_date":"2007-07-20","start_date":"2007-07-15"},"publisher":"American Institute of Physics","language":[{"iso":"eng"}],"extern":"1","publication":"AIP Conference Proceedings","citation":{"ama":"Bryan GL, McGreer ID, Mesinger A, Haiman Z. Feedback effects on population III star formation. In: <i>AIP Conference Proceedings</i>. American Institute of Physics; 2008. doi:<a href=\"https://doi.org/10.1063/1.2905582\">10.1063/1.2905582</a>","ista":"Bryan GL, McGreer ID, Mesinger A, Haiman Z. 2008. Feedback effects on population III star formation. AIP Conference Proceedings. FIRST STARS III: First Stars II Conference.","apa":"Bryan, G. L., McGreer, I. D., Mesinger, A., &#38; Haiman, Z. (2008). Feedback effects on population III star formation. In <i>AIP Conference Proceedings</i>. Santa Fe, NM, United States: American Institute of Physics. <a href=\"https://doi.org/10.1063/1.2905582\">https://doi.org/10.1063/1.2905582</a>","chicago":"Bryan, Greg L., Ian D. McGreer, Andrei Mesinger, and Zoltán Haiman. “Feedback Effects on Population III Star Formation.” In <i>AIP Conference Proceedings</i>. American Institute of Physics, 2008. <a href=\"https://doi.org/10.1063/1.2905582\">https://doi.org/10.1063/1.2905582</a>.","short":"G.L. Bryan, I.D. McGreer, A. Mesinger, Z. Haiman, in:, AIP Conference Proceedings, American Institute of Physics, 2008.","mla":"Bryan, Greg L., et al. “Feedback Effects on Population III Star Formation.” <i>AIP Conference Proceedings</i>, American Institute of Physics, 2008, doi:<a href=\"https://doi.org/10.1063/1.2905582\">10.1063/1.2905582</a>.","ieee":"G. L. Bryan, I. D. McGreer, A. Mesinger, and Z. Haiman, “Feedback effects on population III star formation,” in <i>AIP Conference Proceedings</i>, Santa Fe, NM, United States, 2008."},"publication_identifier":{"issn":["0094-243X"]},"quality_controlled":"1","year":"2008","date_created":"2024-09-06T09:39:10Z","doi":"10.1063/1.2905582","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","title":"Feedback effects on population III star formation"},{"oa_version":"Preprint","scopus_import":"1","month":"12","external_id":{"arxiv":["astro-ph/0001271"]},"conference":{"name":"X-RAY ASTRONOMY: Stellar Endpoints,AGN, and the Diffuse X-ray Background","location":"Bologna, Italy","start_date":"1999-09-06","end_date":"1999-09-10"},"language":[{"iso":"eng"}],"date_updated":"2025-01-07T14:27:17Z","OA_place":"repository","author":[{"id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman","full_name":"Haiman, Zoltán","first_name":"Zoltán","orcid":"0000-0003-3633-5403"}],"date_published":"2001-12-05T00:00:00Z","publication_identifier":{"issn":["0094-243X"]},"doi":"10.1063/1.1434627","day":"05","page":"140-149","volume":599,"type":"conference","article_processing_charge":"No","OA_type":"green","publisher":"AIP Publishing","extern":"1","issue":"1","publication":"AIP Conference Proceedings","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/astro-ph/0001271"}],"status":"public","abstract":[{"text":"Empirical studies of the first generation of stars and quasars will likely become feasible within the next decade in several different wavelength bands. Microwave anisotropy experiments, such as MAP or Planck, will set constraints on the ionization history of the intergalactic medium due to these sources. In the infrared, the Next Generation Space Telescope (NGST) will be able to directly detect sub-galactic objects at redshifts z>10. In the optical, data from the Hubble Deep Field already places a constraint on the abundance of high-redshift quasars. However, the epoch of the first quasars might be first probed in X-ray bands, by instruments such as the Chandra X-ray Observatory (CXO) and the X-ray Multi-mirror Mission (XMM). In a 500 Ksec integration, CXO reaches a sensitivity of 2x10-16 erg/s cm^2. Based on simple hierarchical CDM models, we find that at this flux threshold approx. 100 quasars might be detectable from redshifts z>5, and approx. 1 quasar at z=10, in each 17x17 arcmin field. Measurement of the power spectrum of the unresolved soft X-ray background will further constrain models of faint, high-redshift quasars.","lang":"eng"}],"_id":"18736","intvolume":"       599","publication_status":"published","arxiv":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Probing the cosmic dark age in X-rays","citation":{"chicago":"Haiman, Zoltán. “Probing the Cosmic Dark Age in X-Rays.” In <i>AIP Conference Proceedings</i>, 599:140–49. AIP Publishing, 2001. <a href=\"https://doi.org/10.1063/1.1434627\">https://doi.org/10.1063/1.1434627</a>.","apa":"Haiman, Z. (2001). Probing the cosmic dark age in X-rays. In <i>AIP Conference Proceedings</i> (Vol. 599, pp. 140–149). Bologna, Italy: AIP Publishing. <a href=\"https://doi.org/10.1063/1.1434627\">https://doi.org/10.1063/1.1434627</a>","ista":"Haiman Z. 2001. Probing the cosmic dark age in X-rays. AIP Conference Proceedings. X-RAY ASTRONOMY: Stellar Endpoints,AGN, and the Diffuse X-ray Background vol. 599, 140–149.","ama":"Haiman Z. Probing the cosmic dark age in X-rays. In: <i>AIP Conference Proceedings</i>. Vol 599. AIP Publishing; 2001:140-149. doi:<a href=\"https://doi.org/10.1063/1.1434627\">10.1063/1.1434627</a>","short":"Z. Haiman, in:, AIP Conference Proceedings, AIP Publishing, 2001, pp. 140–149.","mla":"Haiman, Zoltán. “Probing the Cosmic Dark Age in X-Rays.” <i>AIP Conference Proceedings</i>, vol. 599, no. 1, AIP Publishing, 2001, pp. 140–49, doi:<a href=\"https://doi.org/10.1063/1.1434627\">10.1063/1.1434627</a>.","ieee":"Z. Haiman, “Probing the cosmic dark age in X-rays,” in <i>AIP Conference Proceedings</i>, Bologna, Italy, 2001, vol. 599, no. 1, pp. 140–149."},"oa":1,"quality_controlled":"1","year":"2001","date_created":"2025-01-03T12:29:34Z"},{"month":"10","scopus_import":"1","oa_version":"Preprint","language":[{"iso":"eng"}],"conference":{"end_date":"2000-12-15","start_date":"2000-12-10","location":"Austin, TX, United States","name":"RELATIVISTIC ASTROPHYSICS"},"external_id":{"arxiv":["astro-ph/0103049"]},"OA_place":"repository","date_updated":"2025-01-07T14:08:38Z","date_published":"2001-10-15T00:00:00Z","author":[{"first_name":"Zoltán","orcid":"0000-0003-3633-5403","last_name":"Haiman","full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36"}],"publication_identifier":{"issn":["0094-243X"]},"doi":"10.1063/1.1419569","type":"journal_article","volume":586,"page":"303-309","day":"15","publication":"AIP Conference Proceedings","extern":"1","issue":"1","publisher":"AIP","OA_type":"green","article_processing_charge":"No","_id":"18743","intvolume":"       586","abstract":[{"lang":"eng","text":"Over the coming decade, the observational samples available for studies of cluster abundance evolution will increase from tens to hundreds, or possibly to thousands, of clusters. Here we assess the power of future surveys to determine cosmological parameters. We quantify the statistical differences among cosmologies, including the effects of the cosmic equation of state parameter w, in mock cluster catalogs simulating a 12 deg^2 Sunyaev-Zel’dovich Effect (SZE) survey and a deep 10^4 deg^2 X-ray survey. The constraints from clusters are complementary to those from studies of high-redshift Supernovae (SNe), CMB anisotropies, or counts of high-redshift galaxies. Our results indicate that a statistical uncertainty of a few percent on both Ωm\r\n and w can be reached when cluster surveys are used in combination with any of these other datasets."}],"status":"public","main_file_link":[{"url":"https://arxiv.org/abs/astro-ph/0103049","open_access":"1"}],"arxiv":1,"publication_status":"published","title":"Clusters in the precision cosmology era","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa":1,"citation":{"ama":"Haiman Z. Clusters in the precision cosmology era. <i>AIP Conference Proceedings</i>. 2001;586(1):303-309. doi:<a href=\"https://doi.org/10.1063/1.1419569\">10.1063/1.1419569</a>","ista":"Haiman Z. 2001. Clusters in the precision cosmology era. AIP Conference Proceedings. 586(1), 303–309.","apa":"Haiman, Z. (2001). Clusters in the precision cosmology era. <i>AIP Conference Proceedings</i>. Austin, TX, United States: AIP. <a href=\"https://doi.org/10.1063/1.1419569\">https://doi.org/10.1063/1.1419569</a>","chicago":"Haiman, Zoltán. “Clusters in the Precision Cosmology Era.” <i>AIP Conference Proceedings</i>. AIP, 2001. <a href=\"https://doi.org/10.1063/1.1419569\">https://doi.org/10.1063/1.1419569</a>.","short":"Z. Haiman, AIP Conference Proceedings 586 (2001) 303–309.","ieee":"Z. Haiman, “Clusters in the precision cosmology era,” <i>AIP Conference Proceedings</i>, vol. 586, no. 1. AIP, pp. 303–309, 2001.","mla":"Haiman, Zoltán. “Clusters in the Precision Cosmology Era.” <i>AIP Conference Proceedings</i>, vol. 586, no. 1, AIP, 2001, pp. 303–09, doi:<a href=\"https://doi.org/10.1063/1.1419569\">10.1063/1.1419569</a>."},"date_created":"2025-01-03T12:35:17Z","year":"2001","quality_controlled":"1","article_type":"original"},{"date_updated":"2025-01-07T14:20:55Z","OA_place":"repository","date_published":"2001-10-15T00:00:00Z","author":[{"full_name":"Haiman, Zoltán","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman","first_name":"Zoltán","orcid":"0000-0003-3633-5403"},{"last_name":"Barkana","full_name":"Barkana, Rennan","first_name":"Rennan"},{"full_name":"Ostriker, Jeremiah P.","last_name":"Ostriker","first_name":"Jeremiah P."}],"month":"10","scopus_import":"1","oa_version":"Preprint","language":[{"iso":"eng"}],"external_id":{"arxiv":["astro-ph/0103050"]},"publication_identifier":{"issn":["0094-243X"]},"doi":"10.1063/1.1419543","status":"public","_id":"18747","intvolume":"       586","abstract":[{"lang":"eng","text":"Warm Dark Matter (WDM) models have recently been resurrected to resolve apparent conflicts of Cold Dark Matter (DM) models with observations. Endowing the DM particles with non-negligible velocities causes free-streaming, which suppresses the primordial power spectrum on small scales. The choice of a root-mean-square velocity dispersion v(rms) = 0.05 km/s at redshift z=0 (corresponding to a particle mass of 1 keV if the WDM particles are fermions decoupling while relativistic) helps alleviate most, but probably not all, of the small-scale problems faced by CDM. An important side-effect of the particle velocities is the severe decrease in the number of collapsed halos at high redshift. This is caused both by the loss of small-scale power, and by the delay in the collapse of the smallest individual halos (with masses near the effective Jeans mass of the DM). The presence of early halos is required in order (1) to host either early quasars or galaxies that can reionize the universe by redshift z=5.8, and (2) to allow the growth of the supermassive black hole believed to power the recently discovered quasar SDSS 1044-1215 at this redshift. We quantify these constraints using a modified Press-Schechter formalism, and find v(rms) < 0.04 km/s (or m_X > 1 keV). If future observations uncover massive black holes at z > 10, or reveal that reionization occurred at z > 10, this could conclusively rule out WDM models as the solution to the small-scale crisis of the CDM paradigm."}],"main_file_link":[{"url":"https://arxiv.org/abs/astro-ph/0103050","open_access":"1"}],"arxiv":1,"publication_status":"published","type":"journal_article","day":"15","page":"136-142","volume":586,"publisher":"AIP Publishing","extern":"1","issue":"1","publication":"AIP Conference Proceedings","article_processing_charge":"No","OA_type":"green","oa":1,"citation":{"ama":"Haiman Z, Barkana R, Ostriker JP. Warm Dark Matter, small scale crisis, and the high redshift universe. <i>AIP Conference Proceedings</i>. 2001;586(1):136-142. doi:<a href=\"https://doi.org/10.1063/1.1419543\">10.1063/1.1419543</a>","ista":"Haiman Z, Barkana R, Ostriker JP. 2001. Warm Dark Matter, small scale crisis, and the high redshift universe. AIP Conference Proceedings. 586(1), 136–142.","apa":"Haiman, Z., Barkana, R., &#38; Ostriker, J. P. (2001). Warm Dark Matter, small scale crisis, and the high redshift universe. <i>AIP Conference Proceedings</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/1.1419543\">https://doi.org/10.1063/1.1419543</a>","chicago":"Haiman, Zoltán, Rennan Barkana, and Jeremiah P. Ostriker. “Warm Dark Matter, Small Scale Crisis, and the High Redshift Universe.” <i>AIP Conference Proceedings</i>. AIP Publishing, 2001. <a href=\"https://doi.org/10.1063/1.1419543\">https://doi.org/10.1063/1.1419543</a>.","mla":"Haiman, Zoltán, et al. “Warm Dark Matter, Small Scale Crisis, and the High Redshift Universe.” <i>AIP Conference Proceedings</i>, vol. 586, no. 1, AIP Publishing, 2001, pp. 136–42, doi:<a href=\"https://doi.org/10.1063/1.1419543\">10.1063/1.1419543</a>.","ieee":"Z. Haiman, R. Barkana, and J. P. Ostriker, “Warm Dark Matter, small scale crisis, and the high redshift universe,” <i>AIP Conference Proceedings</i>, vol. 586, no. 1. AIP Publishing, pp. 136–142, 2001.","short":"Z. Haiman, R. Barkana, J.P. Ostriker, AIP Conference Proceedings 586 (2001) 136–142."},"year":"2001","date_created":"2025-01-03T12:36:55Z","article_type":"original","quality_controlled":"1","title":"Warm Dark Matter, small scale crisis, and the high redshift universe","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"}]