---
_id: '239'
abstract:
- lang: eng
text: An effective search bound is established for the least non-trivial integer
zero of an arbitrary cubic form C ε ℤ[X 1,...,X n], provided that n ≥ 17.
acknowledgement: "EP/E053262/1\tEngineering and Physical Sciences Research Council"
author:
- first_name: Timothy D
full_name: Timothy Browning
id: 35827D50-F248-11E8-B48F-1D18A9856A87
last_name: Browning
orcid: 0000-0002-8314-0177
- first_name: Rainer
full_name: Dietmann, Rainer
last_name: Dietmann
- first_name: Peter
full_name: Elliott, Peter
last_name: Elliott
citation:
ama: Browning TD, Dietmann R, Elliott P. Least zero of a cubic form. Mathematische
Annalen. 2011;352(3):745-778. doi:10.1007/s00208-011-0651-6
apa: Browning, T. D., Dietmann, R., & Elliott, P. (2011). Least zero of a cubic
form. Mathematische Annalen. Springer. https://doi.org/10.1007/s00208-011-0651-6
chicago: Browning, Timothy D, Rainer Dietmann, and Peter Elliott. “Least Zero of
a Cubic Form.” Mathematische Annalen. Springer, 2011. https://doi.org/10.1007/s00208-011-0651-6.
ieee: T. D. Browning, R. Dietmann, and P. Elliott, “Least zero of a cubic form,”
Mathematische Annalen, vol. 352, no. 3. Springer, pp. 745–778, 2011.
ista: Browning TD, Dietmann R, Elliott P. 2011. Least zero of a cubic form. Mathematische
Annalen. 352(3), 745–778.
mla: Browning, Timothy D., et al. “Least Zero of a Cubic Form.” Mathematische
Annalen, vol. 352, no. 3, Springer, 2011, pp. 745–78, doi:10.1007/s00208-011-0651-6.
short: T.D. Browning, R. Dietmann, P. Elliott, Mathematische Annalen 352 (2011)
745–778.
date_created: 2018-12-11T11:45:22Z
date_published: 2011-03-06T00:00:00Z
date_updated: 2021-01-12T06:57:11Z
day: '06'
doi: 10.1007/s00208-011-0651-6
extern: 1
intvolume: ' 352'
issue: '3'
month: '03'
page: 745 - 778
publication: Mathematische Annalen
publication_status: published
publisher: Springer
publist_id: '7665'
quality_controlled: 0
status: public
title: Least zero of a cubic form
type: journal_article
volume: 352
year: '2011'
...
---
_id: '2390'
abstract:
- lang: eng
text: 'We resolve several longstanding problems concerning the stability and the
absence of multi-particle binding for N≥2 polarons. Fröhlich''s 1937 polaron model
describes non-relativistic particles interacting with a scalar quantized field
with coupling √α, and with each other by Coulomb repulsion of strength U. We prove
the following: (i) While there is a known thermodynamic instability for U<2α,
stability of matter does hold for U>2α, that is, the ground state energy per
particle has a finite limit as N→∞. (ii) There is no binding of any kind if U
exceeds a critical value that depends on α but not on N. The same results are
shown to hold for the Pekar-Tomasevich model.'
author:
- first_name: Rupert
full_name: Frank, Rupert L
last_name: Frank
- first_name: Élliott
full_name: Lieb, Élliott H
last_name: Lieb
- first_name: Robert
full_name: Robert Seiringer
id: 4AFD0470-F248-11E8-B48F-1D18A9856A87
last_name: Seiringer
orcid: 0000-0002-6781-0521
- first_name: Lawrence
full_name: Thomas, Lawrence E
last_name: Thomas
citation:
ama: Frank R, Lieb É, Seiringer R, Thomas L. Stability and absence of binding for
multi-polaron systems. Publications Mathematiques de l Institut des Hautes
Etudes Scientifiques. 2011;113(1):39-67. doi:10.1007/s10240-011-0031-5
apa: Frank, R., Lieb, É., Seiringer, R., & Thomas, L. (2011). Stability and
absence of binding for multi-polaron systems. Publications Mathematiques de
l Institut Des Hautes Etudes Scientifiques. Springer. https://doi.org/10.1007/s10240-011-0031-5
chicago: Frank, Rupert, Élliott Lieb, Robert Seiringer, and Lawrence Thomas. “Stability
and Absence of Binding for Multi-Polaron Systems.” Publications Mathematiques
de l Institut Des Hautes Etudes Scientifiques. Springer, 2011. https://doi.org/10.1007/s10240-011-0031-5.
ieee: R. Frank, É. Lieb, R. Seiringer, and L. Thomas, “Stability and absence of
binding for multi-polaron systems,” Publications Mathematiques de l Institut
des Hautes Etudes Scientifiques, vol. 113, no. 1. Springer, pp. 39–67, 2011.
ista: Frank R, Lieb É, Seiringer R, Thomas L. 2011. Stability and absence of binding
for multi-polaron systems. Publications Mathematiques de l Institut des Hautes
Etudes Scientifiques. 113(1), 39–67.
mla: Frank, Rupert, et al. “Stability and Absence of Binding for Multi-Polaron Systems.”
Publications Mathematiques de l Institut Des Hautes Etudes Scientifiques,
vol. 113, no. 1, Springer, 2011, pp. 39–67, doi:10.1007/s10240-011-0031-5.
short: R. Frank, É. Lieb, R. Seiringer, L. Thomas, Publications Mathematiques de
l Institut Des Hautes Etudes Scientifiques 113 (2011) 39–67.
date_created: 2018-12-11T11:57:23Z
date_published: 2011-06-01T00:00:00Z
date_updated: 2021-01-12T06:57:12Z
day: '01'
doi: 10.1007/s10240-011-0031-5
extern: 1
intvolume: ' 113'
issue: '1'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1004.4892
month: '06'
oa: 1
page: 39 - 67
publication: Publications Mathematiques de l Institut des Hautes Etudes Scientifiques
publication_status: published
publisher: Springer
publist_id: '4534'
quality_controlled: 0
status: public
title: Stability and absence of binding for multi-polaron systems
type: journal_article
volume: 113
year: '2011'
...
---
_id: '2391'
abstract:
- lang: eng
text: The change in energy of an ideal Fermi gas when a local one-body potential
is inserted into the system, or when the density is changed locally, are important
quantities in condensed matter physics. We show that they can be rigorously bounded
from below by a universal constant times the value given by the semiclassical
approximation.
author:
- first_name: Rupert
full_name: Frank, Rupert L
last_name: Frank
- first_name: Mathieu
full_name: Lewin, Mathieu
last_name: Lewin
- first_name: Élliott
full_name: Lieb, Élliott H
last_name: Lieb
- first_name: Robert
full_name: Robert Seiringer
id: 4AFD0470-F248-11E8-B48F-1D18A9856A87
last_name: Seiringer
orcid: 0000-0002-6781-0521
citation:
ama: Frank R, Lewin M, Lieb É, Seiringer R. Energy cost to make a hole in the fermi
sea. Physical Review Letters. 2011;106(15). doi:10.1103/PhysRevLett.106.150402
apa: Frank, R., Lewin, M., Lieb, É., & Seiringer, R. (2011). Energy cost to
make a hole in the fermi sea. Physical Review Letters. American Physical
Society. https://doi.org/10.1103/PhysRevLett.106.150402
chicago: Frank, Rupert, Mathieu Lewin, Élliott Lieb, and Robert Seiringer. “Energy
Cost to Make a Hole in the Fermi Sea.” Physical Review Letters. American
Physical Society, 2011. https://doi.org/10.1103/PhysRevLett.106.150402.
ieee: R. Frank, M. Lewin, É. Lieb, and R. Seiringer, “Energy cost to make a hole
in the fermi sea,” Physical Review Letters, vol. 106, no. 15. American
Physical Society, 2011.
ista: Frank R, Lewin M, Lieb É, Seiringer R. 2011. Energy cost to make a hole in
the fermi sea. Physical Review Letters. 106(15).
mla: Frank, Rupert, et al. “Energy Cost to Make a Hole in the Fermi Sea.” Physical
Review Letters, vol. 106, no. 15, American Physical Society, 2011, doi:10.1103/PhysRevLett.106.150402.
short: R. Frank, M. Lewin, É. Lieb, R. Seiringer, Physical Review Letters 106 (2011).
date_created: 2018-12-11T11:57:24Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2021-01-12T06:57:12Z
day: '01'
doi: 10.1103/PhysRevLett.106.150402
extern: 1
intvolume: ' 106'
issue: '15'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1102.1414
month: '01'
oa: 1
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '4535'
quality_controlled: 0
status: public
title: Energy cost to make a hole in the fermi sea
type: journal_article
volume: 106
year: '2011'
...
---
_id: '2393'
abstract:
- lang: eng
text: We investigate the low energy excitation spectrum of a Bose gas with weak,
long range repulsive interactions. In particular, we prove that the Bogoliubov
spectrum of elementary excitations with linear dispersion relation for small momentum
becomes exact in the mean-field limit.
author:
- first_name: Robert
full_name: Robert Seiringer
id: 4AFD0470-F248-11E8-B48F-1D18A9856A87
last_name: Seiringer
orcid: 0000-0002-6781-0521
citation:
ama: Seiringer R. The excitation spectrum for weakly interacting Bosons. Communications
in Mathematical Physics. 2011;306(2):565-578. doi:10.1007/s00220-011-1261-6
apa: Seiringer, R. (2011). The excitation spectrum for weakly interacting Bosons.
Communications in Mathematical Physics. Springer. https://doi.org/10.1007/s00220-011-1261-6
chicago: Seiringer, Robert. “The Excitation Spectrum for Weakly Interacting Bosons.”
Communications in Mathematical Physics. Springer, 2011. https://doi.org/10.1007/s00220-011-1261-6.
ieee: R. Seiringer, “The excitation spectrum for weakly interacting Bosons,” Communications
in Mathematical Physics, vol. 306, no. 2. Springer, pp. 565–578, 2011.
ista: Seiringer R. 2011. The excitation spectrum for weakly interacting Bosons.
Communications in Mathematical Physics. 306(2), 565–578.
mla: Seiringer, Robert. “The Excitation Spectrum for Weakly Interacting Bosons.”
Communications in Mathematical Physics, vol. 306, no. 2, Springer, 2011,
pp. 565–78, doi:10.1007/s00220-011-1261-6.
short: R. Seiringer, Communications in Mathematical Physics 306 (2011) 565–578.
date_created: 2018-12-11T11:57:24Z
date_published: 2011-09-01T00:00:00Z
date_updated: 2021-01-12T06:57:13Z
day: '01'
doi: 10.1007/s00220-011-1261-6
extern: 1
intvolume: ' 306'
issue: '2'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1008.5349
month: '09'
oa: 1
page: 565 - 578
publication: Communications in Mathematical Physics
publication_status: published
publisher: Springer
publist_id: '4533'
quality_controlled: 0
status: public
title: The excitation spectrum for weakly interacting Bosons
type: journal_article
volume: 306
year: '2011'
...
---
_id: '2436'
abstract:
- lang: eng
text: 'Let EMBEDk→d be the following algorithmic problem: Given a finite simplicial
complex K of dimension at most k, does there exist a (piecewise linear) embedding
of K into Rd? Known results easily imply the polynomiality of EMBEDk→2 (k = 1;
2; the case k = 1, d = 2 is graph planarity) and of EMBEDk→2k for all k ≥ 3. We
show that the celebrated result of Novikov on the algorithmic unsolvability of
recognizing the 5-sphere implies that EMBEDd→d and EMBED (d-1)→d are undecidable
for each d ≥ 5. Our main result is the NP-hardness of EMBED2→4 and, more generally,
of EMBED k→d for all k; d with d ≥ 4 and d ≥ k ≥ (2d - 2)/3. These dimensions
fall outside the metastable range of a theorem of Haefliger and Weber, which characterizes
embeddability using the deleted product obstruction. Our reductions are based
on examples, due to Segal, Spież, Freedman, Krushkal, Teichner, and Skopenkov,
showing that outside the metastable range the deleted product obstruction is not
sufficient to characterize embeddability. '
acknowledgement: |-
We would like to thank Colin Rourke for explanations concerning PL topology and for examples showing the difference between PL embeddability and topological embeddability
mentioned in Section 2. We also thank Michael Joswig, Gil Kalai, Frank Lutz, Alexander Nabutovsky, and Robin Thomas for kindly answering our questions. The second author would also like to thank Sergio Cabello for helpful discussions regarding linear-time algorithms for EMBED2!2.
Finally, we are grateful to two anonymous referees for careful reading and valuable suggestions.
Research of U.Wagner was supported by the Swiss National Science Foundation (SNF Projects
200021-116741 and 200021-125309).
author:
- first_name: Jiří
full_name: Matoušek, Jiří
last_name: Matoušek
- first_name: Martin
full_name: Martin Tancer
id: 38AC689C-F248-11E8-B48F-1D18A9856A87
last_name: Tancer
orcid: 0000-0002-1191-6714
- first_name: Uli
full_name: Uli Wagner
id: 36690CA2-F248-11E8-B48F-1D18A9856A87
last_name: Wagner
orcid: 0000-0002-1494-0568
citation:
ama: Matoušek J, Tancer M, Wagner U. Hardness of embedding simplicial complexes
in Rd. Journal of the European Mathematical Society. 2011;13(2):259-295.
doi:10.4171/JEMS/252
apa: Matoušek, J., Tancer, M., & Wagner, U. (2011). Hardness of embedding simplicial
complexes in Rd. Journal of the European Mathematical Society. European
Mathematical Society. https://doi.org/10.4171/JEMS/252
chicago: Matoušek, Jiří, Martin Tancer, and Uli Wagner. “Hardness of Embedding Simplicial
Complexes in Rd.” Journal of the European Mathematical Society. European
Mathematical Society, 2011. https://doi.org/10.4171/JEMS/252.
ieee: J. Matoušek, M. Tancer, and U. Wagner, “Hardness of embedding simplicial complexes
in Rd,” Journal of the European Mathematical Society, vol. 13, no. 2. European
Mathematical Society, pp. 259–295, 2011.
ista: Matoušek J, Tancer M, Wagner U. 2011. Hardness of embedding simplicial complexes
in Rd. Journal of the European Mathematical Society. 13(2), 259–295.
mla: Matoušek, Jiří, et al. “Hardness of Embedding Simplicial Complexes in Rd.”
Journal of the European Mathematical Society, vol. 13, no. 2, European
Mathematical Society, 2011, pp. 259–95, doi:10.4171/JEMS/252.
short: J. Matoušek, M. Tancer, U. Wagner, Journal of the European Mathematical Society
13 (2011) 259–295.
date_created: 2018-12-11T11:57:39Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2021-01-12T06:57:28Z
day: '01'
doi: 10.4171/JEMS/252
extern: 1
intvolume: ' 13'
issue: '2'
month: '01'
page: 259 - 295
publication: Journal of the European Mathematical Society
publication_status: published
publisher: European Mathematical Society
publist_id: '4470'
quality_controlled: 0
status: public
title: Hardness of embedding simplicial complexes in Rd
type: journal_article
volume: 13
year: '2011'
...
---
_id: '2437'
abstract:
- lang: eng
text: We introduce a new notion of minors for simplicial complexes (hypergraphs),
so-called homological minors. Our motivation is to propose a general approach
to attack certain extremal problems for sparse simplicial complexes and the corresponding
threshold problems for random complexes. In this paper, we focus on threshold
problems. The basic model for random complexes is the Linial-Meshulam model Xk(n,
p). By definition, such a complex has n vertices, a complete (k -1)-dimensional
skeleton, and every possible k-dimensional simplex is chosen independently with
probability p. We show that for every k, t≥ 1, there is a constant C = C(k, t)
such that for p≥ C/n, the random complex Xk(n, p) asymptotically almost surely
contains K tk (the complete k-dimensional complex on t vertices) as a homological
minor. As corollary, the threshold for (topological) embeddability of Xk(n, p)
into R2k is at p = θ(1/n). The method can be extended to other models of random
complexes (for which the lower skeleta are not necessarily complete) and also
to more general Tverberg-type problems, where instead of continuous maps without
doubly covered image points (embeddings), we consider maps without qfold covered
image points.
author:
- first_name: Uli
full_name: Uli Wagner
id: 36690CA2-F248-11E8-B48F-1D18A9856A87
last_name: Wagner
orcid: 0000-0002-1494-0568
citation:
ama: 'Wagner U. Minors in random and expanding hypergraphs. In: ACM; 2011:351-360.
doi:10.1145/1998196.1998256'
apa: 'Wagner, U. (2011). Minors in random and expanding hypergraphs (pp. 351–360).
Presented at the SGC: Symposuim on Computational Geometry, ACM. https://doi.org/10.1145/1998196.1998256'
chicago: Wagner, Uli. “Minors in Random and Expanding Hypergraphs,” 351–60. ACM,
2011. https://doi.org/10.1145/1998196.1998256.
ieee: 'U. Wagner, “Minors in random and expanding hypergraphs,” presented at the
SGC: Symposuim on Computational Geometry, 2011, pp. 351–360.'
ista: 'Wagner U. 2011. Minors in random and expanding hypergraphs. SGC: Symposuim
on Computational Geometry, 351–360.'
mla: Wagner, Uli. Minors in Random and Expanding Hypergraphs. ACM, 2011,
pp. 351–60, doi:10.1145/1998196.1998256.
short: U. Wagner, in:, ACM, 2011, pp. 351–360.
conference:
name: 'SGC: Symposuim on Computational Geometry'
date_created: 2018-12-11T11:57:39Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2021-01-12T06:57:29Z
day: '01'
doi: 10.1145/1998196.1998256
extern: 1
month: '01'
page: 351 - 360
publication_status: published
publisher: ACM
publist_id: '4469'
quality_controlled: 0
status: public
title: Minors in random and expanding hypergraphs
type: conference
year: '2011'
...
---
_id: '2454'
abstract:
- lang: eng
text: Within a multicellular tissue cells may coordinately form a singular or multiple
polar axes, but it is unclear whether a common mechanism governs different types
of polar axis formation. The phosphorylation status of PIN proteins, which is
directly affected by the PINOID (PID) protein kinase and the PP2A protein phosphatase,
is known to regulate the apical-basal polarity of PIN localization in bipolar
cells of roots and shoot apices. Here, we provide evidence that the phosphorylation
status-mediated PIN polarity switch is widely used to modulate cellular processes
in Arabidopsis including multipolar pavement cells (PC) with interdigitated lobes
and indentations. The degree of PC interdigitation was greatly reduced either
when the FYPP1 gene, which encodes a PP2A called phytochrome-associated serine/threonine
protein phosphatase, was knocked out or when the PID gene was overexpressed (35S:PID).
These genetic modifications caused PIN1 localization to switch from lobe to indentation
regions. The PP2A and PID mediated switching of PIN1 localization is strikingly
similar to their regulation of the apical-basal polarity switch of PIN proteins
in other cells. Our findings suggest a common mechanism for the regulation of
PIN1 polarity formation, a fundamental cellular process that is crucial for pattern
formation both at the tissue/organ and cellular levels.
author:
- first_name: Hongjiang
full_name: Hongjiang Li
id: 33CA54A6-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0001-5039-9660
- first_name: Deshu
full_name: Lin, Deshu
last_name: Lin
- first_name: Pankaj
full_name: Dhonukshe, Pankaj B
last_name: Dhonukshe
- first_name: Shingo
full_name: Nagawa, Shingo
last_name: Nagawa
- first_name: Dandan
full_name: Chen, Dandan
last_name: Chen
- first_name: Jirí
full_name: Jirí Friml
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Ben
full_name: Scheres, Ben
last_name: Scheres
- first_name: Hongwei
full_name: Guo, Hongwei
last_name: Guo
- first_name: Zhenbiao
full_name: Yang, Zhenbiao
last_name: Yang
citation:
ama: Li H, Lin D, Dhonukshe P, et al. Phosphorylation switch modulates the interdigitated
pattern of PIN1 localization and cell expansion in Arabidopsis leaf epidermis.
Cell Research. 2011;21(6):970-978. doi:10.1038/cr.2011.49
apa: Li, H., Lin, D., Dhonukshe, P., Nagawa, S., Chen, D., Friml, J., … Yang, Z.
(2011). Phosphorylation switch modulates the interdigitated pattern of PIN1 localization
and cell expansion in Arabidopsis leaf epidermis. Cell Research. Nature
Publishing Group. https://doi.org/10.1038/cr.2011.49
chicago: Li, Hongjiang, Deshu Lin, Pankaj Dhonukshe, Shingo Nagawa, Dandan Chen,
Jiří Friml, Ben Scheres, Hongwei Guo, and Zhenbiao Yang. “Phosphorylation Switch
Modulates the Interdigitated Pattern of PIN1 Localization and Cell Expansion in
Arabidopsis Leaf Epidermis.” Cell Research. Nature Publishing Group, 2011.
https://doi.org/10.1038/cr.2011.49.
ieee: H. Li et al., “Phosphorylation switch modulates the interdigitated
pattern of PIN1 localization and cell expansion in Arabidopsis leaf epidermis,”
Cell Research, vol. 21, no. 6. Nature Publishing Group, pp. 970–978, 2011.
ista: Li H, Lin D, Dhonukshe P, Nagawa S, Chen D, Friml J, Scheres B, Guo H, Yang
Z. 2011. Phosphorylation switch modulates the interdigitated pattern of PIN1 localization
and cell expansion in Arabidopsis leaf epidermis. Cell Research. 21(6), 970–978.
mla: Li, Hongjiang, et al. “Phosphorylation Switch Modulates the Interdigitated
Pattern of PIN1 Localization and Cell Expansion in Arabidopsis Leaf Epidermis.”
Cell Research, vol. 21, no. 6, Nature Publishing Group, 2011, pp. 970–78,
doi:10.1038/cr.2011.49.
short: H. Li, D. Lin, P. Dhonukshe, S. Nagawa, D. Chen, J. Friml, B. Scheres, H.
Guo, Z. Yang, Cell Research 21 (2011) 970–978.
date_created: 2018-12-11T11:57:45Z
date_published: 2011-06-01T00:00:00Z
date_updated: 2021-01-12T06:57:35Z
day: '01'
doi: 10.1038/cr.2011.49
extern: 1
intvolume: ' 21'
issue: '6'
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3203702/
month: '06'
oa: 1
page: 970 - 978
publication: Cell Research
publication_status: published
publisher: Nature Publishing Group
publist_id: '4449'
quality_controlled: 0
status: public
title: Phosphorylation switch modulates the interdigitated pattern of PIN1 localization
and cell expansion in Arabidopsis leaf epidermis
type: journal_article
volume: 21
year: '2011'
...
---
_id: '2460'
abstract:
- lang: eng
text: In unicellular and multicellular organisms, cell polarity is essential for
a wide range of biological processes. An important feature of cell polarity is
the asymmetric distribution of proteins in or at the plasma membrane. In plants
such polar localized proteins play various specific roles ranging from organizing
cell morphogenesis, asymmetric cell division, pathogen defense, nutrient transport
and establishment of hormone gradients for developmental patterning. Moreover,
flexible respecification of cell polarities enables plants to adjust their physiology
and development to environmental changes. Having evolved multicellularity independently
and lacking major cell polarity mechanisms of animal cells, plants came up with
alternative solutions to generate and respecify cell polarity as well as to regulate
polar domains at the plasma membrane.
author:
- first_name: Jan
full_name: Dettmer, Jan
last_name: Dettmer
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: 'Dettmer J, Friml J. Cell polarity in plants: When two do the same, it is not
the same... Current Opinion in Cell Biology. 2011;23(6):686-696. doi:10.1016/j.ceb.2011.09.006'
apa: 'Dettmer, J., & Friml, J. (2011). Cell polarity in plants: When two do
the same, it is not the same... Current Opinion in Cell Biology. Elsevier.
https://doi.org/10.1016/j.ceb.2011.09.006'
chicago: 'Dettmer, Jan, and Jiří Friml. “Cell Polarity in Plants: When Two Do the
Same, It Is Not the Same...” Current Opinion in Cell Biology. Elsevier,
2011. https://doi.org/10.1016/j.ceb.2011.09.006.'
ieee: 'J. Dettmer and J. Friml, “Cell polarity in plants: When two do the same,
it is not the same...,” Current Opinion in Cell Biology, vol. 23, no. 6.
Elsevier, pp. 686–696, 2011.'
ista: 'Dettmer J, Friml J. 2011. Cell polarity in plants: When two do the same,
it is not the same... Current Opinion in Cell Biology. 23(6), 686–696.'
mla: 'Dettmer, Jan, and Jiří Friml. “Cell Polarity in Plants: When Two Do the Same,
It Is Not the Same...” Current Opinion in Cell Biology, vol. 23, no. 6,
Elsevier, 2011, pp. 686–96, doi:10.1016/j.ceb.2011.09.006.'
short: J. Dettmer, J. Friml, Current Opinion in Cell Biology 23 (2011) 686–696.
date_created: 2018-12-11T11:57:47Z
date_published: 2011-12-01T00:00:00Z
date_updated: 2021-01-12T06:57:37Z
day: '01'
doi: 10.1016/j.ceb.2011.09.006
extern: '1'
intvolume: ' 23'
issue: '6'
language:
- iso: eng
month: '12'
oa_version: None
page: 686 - 696
publication: Current Opinion in Cell Biology
publication_status: published
publisher: Elsevier
publist_id: '4443'
quality_controlled: '1'
status: public
title: 'Cell polarity in plants: When two do the same, it is not the same...'
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 23
year: '2011'
...
---
_id: '2511'
abstract:
- lang: eng
text: Parkinson's disease is a common neurodegenerative disorder characterized by
a profound motor disability that is traceable to the emergence of synchronous,
rhythmic spiking in neurons of the external segment of the globus pallidus (GPe).
The origins of this pathophysiology are poorly defined for the generation of pacemaking.
After the induction of a parkinsonian state in mice, there was a progressive decline
in autonomous GPe pacemaking, which normally serves to desynchronize activity.
The loss was attributable to the downregulation of an ion channel that is essential
in pacemaking, the hyperpolarization and cyclic nucleotide-gated (HCN) channel.
Viral delivery of HCN2 subunits restored pacemaking and reduced burst spiking
in GPe neurons. However, the motor disability induced by dopamine (DA) depletion
was not reversed, suggesting that the loss of pacemaking was a consequence, rather
than a cause, of key network pathophysiology, a conclusion that is consistent
with the ability of L-type channel antagonists to attenuate silencing after DA
depletion.
author:
- first_name: Savio
full_name: Chan, Savio
last_name: Chan
- first_name: Kelly
full_name: Glajch, Kelly E
last_name: Glajch
- first_name: Tracy
full_name: Gertler, Tracy S
last_name: Gertler
- first_name: Jaime
full_name: Guzmán, Jaime N
last_name: Guzmán
- first_name: Jeff
full_name: Mercer, Jeff N
last_name: Mercer
- first_name: Alan
full_name: Lewis, Alan S
last_name: Lewis
- first_name: Alan
full_name: Goldberg, Alan B
last_name: Goldberg
- first_name: Tatiana
full_name: Tkatch, Tatiana
last_name: Tkatch
- first_name: Ryuichi
full_name: Ryuichi Shigemoto
id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
last_name: Shigemoto
orcid: 0000-0001-8761-9444
- first_name: Sheila
full_name: Fleming, Sheila M
last_name: Fleming
- first_name: Dane
full_name: Chetkovich, Dane M
last_name: Chetkovich
- first_name: Pavel
full_name: Osten, Pavel
last_name: Osten
- first_name: Hitoshi
full_name: Kita, Hitoshi
last_name: Kita
- first_name: James
full_name: Surmeier, James D
last_name: Surmeier
citation:
ama: Chan S, Glajch K, Gertler T, et al. HCN channelopathy in external globus pallidus
neurons in models of Parkinson s disease. Nature Neuroscience. 2011;14(1):85-94.
doi:10.1038/nn.2692
apa: Chan, S., Glajch, K., Gertler, T., Guzmán, J., Mercer, J., Lewis, A., … Surmeier,
J. (2011). HCN channelopathy in external globus pallidus neurons in models of
Parkinson s disease. Nature Neuroscience. Nature Publishing Group. https://doi.org/10.1038/nn.2692
chicago: Chan, Savio, Kelly Glajch, Tracy Gertler, Jaime Guzmán, Jeff Mercer, Alan
Lewis, Alan Goldberg, et al. “HCN Channelopathy in External Globus Pallidus Neurons
in Models of Parkinson s Disease.” Nature Neuroscience. Nature Publishing
Group, 2011. https://doi.org/10.1038/nn.2692.
ieee: S. Chan et al., “HCN channelopathy in external globus pallidus neurons
in models of Parkinson s disease,” Nature Neuroscience, vol. 14, no. 1.
Nature Publishing Group, pp. 85–94, 2011.
ista: Chan S, Glajch K, Gertler T, Guzmán J, Mercer J, Lewis A, Goldberg A, Tkatch
T, Shigemoto R, Fleming S, Chetkovich D, Osten P, Kita H, Surmeier J. 2011. HCN
channelopathy in external globus pallidus neurons in models of Parkinson s disease.
Nature Neuroscience. 14(1), 85–94.
mla: Chan, Savio, et al. “HCN Channelopathy in External Globus Pallidus Neurons
in Models of Parkinson s Disease.” Nature Neuroscience, vol. 14, no. 1,
Nature Publishing Group, 2011, pp. 85–94, doi:10.1038/nn.2692.
short: S. Chan, K. Glajch, T. Gertler, J. Guzmán, J. Mercer, A. Lewis, A. Goldberg,
T. Tkatch, R. Shigemoto, S. Fleming, D. Chetkovich, P. Osten, H. Kita, J. Surmeier,
Nature Neuroscience 14 (2011) 85–94.
date_created: 2018-12-11T11:58:06Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2021-01-12T06:57:56Z
day: '01'
doi: 10.1038/nn.2692
extern: 1
intvolume: ' 14'
issue: '1'
month: '01'
page: 85 - 94
publication: Nature Neuroscience
publication_status: published
publisher: Nature Publishing Group
publist_id: '4390'
quality_controlled: 0
status: public
title: HCN channelopathy in external globus pallidus neurons in models of Parkinson
s disease
type: journal_article
volume: 14
year: '2011'
...
---
_id: '2512'
abstract:
- lang: eng
text: GABAergic inhibition plays a central role in the control of pyramidal cell
ensemble activities; thus, any signaling mechanism that regulates inhibition is
able to fine-tune network patterns. Here, we provide evidence that the retrograde
nitric oxide (NO)- cGMP cascade triggered by NMDA receptor (NMDAR) activation
plays a role in the control of hippocampal GABAergic transmission in mice. GABAergic
synapses express neuronal nitric oxide synthase (nNOS) postsynaptically and NO
receptors (NO-sensitive guanylyl cyclase) in the presynaptic terminals. We hypothesized
that-similar to glutamatergic synapses-the Ca 2+ transients required to activate
nNOS were provided by NMDA receptor activation. Indeed, administration of 5 μm
NMDA induced a robust nNOS-dependent cGMP production in GABAergic terminals, selectively
in the CA1 and CA3c areas. Furthermore, using preembedding, postembedding, and
SDS-digested freeze-fracture replica immunogold labeling, we provided quantitative
immunocytochemical evidence that NMDAR subunits GluN1, GluN2A, and GluN2B were
present in most somatic GABAergic synapses postsynaptically. These data indicate
that NMDARs can modulate hippocampal GABAergic inhibition via NO- cGMP signaling
in an activity-dependent manner and that this effect is subregion specific in
the mouse hippocampus.
author:
- first_name: Eszter
full_name: Szabadits, Eszter
last_name: Szabadits
- first_name: Csaba
full_name: Cserép, Csaba
last_name: Cserép
- first_name: András
full_name: Szonyi, András
last_name: Szonyi
- first_name: Yugo
full_name: Fukazawa, Yugo
last_name: Fukazawa
- first_name: Ryuichi
full_name: Ryuichi Shigemoto
id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
last_name: Shigemoto
orcid: 0000-0001-8761-9444
- first_name: Masahiko
full_name: Watanabe, Masahiko
last_name: Watanabe
- first_name: Shigeyoshi
full_name: Itohara, Shigeyoshi
last_name: Itohara
- first_name: Tamás
full_name: Freund, Tamás F
last_name: Freund
- first_name: Gábor
full_name: Nyíri, Gábor
last_name: Nyíri
citation:
ama: Szabadits E, Cserép C, Szonyi A, et al. NMDA receptors in hippocampal GABAergic
synapses and their role in nitric oxide signaling. Journal of Neuroscience.
2011;31(16):5893-5904. doi:10.1523/JNEUROSCI.5938-10.2011
apa: Szabadits, E., Cserép, C., Szonyi, A., Fukazawa, Y., Shigemoto, R., Watanabe,
M., … Nyíri, G. (2011). NMDA receptors in hippocampal GABAergic synapses and their
role in nitric oxide signaling. Journal of Neuroscience. Society for Neuroscience.
https://doi.org/10.1523/JNEUROSCI.5938-10.2011
chicago: Szabadits, Eszter, Csaba Cserép, András Szonyi, Yugo Fukazawa, Ryuichi
Shigemoto, Masahiko Watanabe, Shigeyoshi Itohara, Tamás Freund, and Gábor Nyíri.
“NMDA Receptors in Hippocampal GABAergic Synapses and Their Role in Nitric Oxide
Signaling.” Journal of Neuroscience. Society for Neuroscience, 2011. https://doi.org/10.1523/JNEUROSCI.5938-10.2011.
ieee: E. Szabadits et al., “NMDA receptors in hippocampal GABAergic synapses
and their role in nitric oxide signaling,” Journal of Neuroscience, vol.
31, no. 16. Society for Neuroscience, pp. 5893–5904, 2011.
ista: Szabadits E, Cserép C, Szonyi A, Fukazawa Y, Shigemoto R, Watanabe M, Itohara
S, Freund T, Nyíri G. 2011. NMDA receptors in hippocampal GABAergic synapses and
their role in nitric oxide signaling. Journal of Neuroscience. 31(16), 5893–5904.
mla: Szabadits, Eszter, et al. “NMDA Receptors in Hippocampal GABAergic Synapses
and Their Role in Nitric Oxide Signaling.” Journal of Neuroscience, vol.
31, no. 16, Society for Neuroscience, 2011, pp. 5893–904, doi:10.1523/JNEUROSCI.5938-10.2011.
short: E. Szabadits, C. Cserép, A. Szonyi, Y. Fukazawa, R. Shigemoto, M. Watanabe,
S. Itohara, T. Freund, G. Nyíri, Journal of Neuroscience 31 (2011) 5893–5904.
date_created: 2018-12-11T11:58:06Z
date_published: 2011-04-20T00:00:00Z
date_updated: 2021-01-12T06:57:56Z
day: '20'
doi: 10.1523/JNEUROSCI.5938-10.2011
extern: 1
intvolume: ' 31'
issue: '16'
month: '04'
page: 5893 - 5904
publication: Journal of Neuroscience
publication_status: published
publisher: Society for Neuroscience
publist_id: '4389'
quality_controlled: 0
status: public
title: NMDA receptors in hippocampal GABAergic synapses and their role in nitric oxide
signaling
type: journal_article
volume: 31
year: '2011'
...
---
_id: '2513'
abstract:
- lang: eng
text: 'SK2-containing channels are expressed in the postsynaptic density (PSD) of
dendritic spines on mouse hippocampal area CA1 pyramidal neurons and influence
synaptic responses, plasticity and learning. The Sk2 gene (also known as Kcnn2)
encodes two isoforms that differ only in the length of their N-terminal domains.
SK2-long (SK2-L) and SK2-short (SK2-S) are coexpressed in CA1 pyramidal neurons
and likely form heteromeric channels. In mice lacking SK2-L (SK2-S only mice),
SK2-S-containing channels were expressed in the extrasynaptic membrane, but were
excluded from the PSD. The SK channel contribution to excitatory postsynaptic
potentials was absent in SK2-S only mice and was restored by SK2-L re-expression.
Blocking SK channels increased the amount of long-term potentiation induced in
area CA1 in slices from wild-type mice but had no effect in slices from SK2-S
only mice. Furthermore, SK2-S only mice outperformed wild-type mice in the novel
object recognition task. These results indicate that SK2-L directs synaptic SK2-containing
channel expression and is important for normal synaptic signaling, plasticity
and learning. '
author:
- first_name: Duane
full_name: Allen, Duane H
last_name: Allen
- first_name: Chris
full_name: Bond, Chris T
last_name: Bond
- first_name: Rafael
full_name: Luján, Rafael
last_name: Luján
- first_name: Carmen
full_name: Ballesteros-Merino, Carmen
last_name: Ballesteros Merino
- first_name: Michael
full_name: Lin, Michael T
last_name: Lin
- first_name: Kang
full_name: Wang, Kang
last_name: Wang
- first_name: Nathan
full_name: Klett, Nathan
last_name: Klett
- first_name: Masahiko
full_name: Watanabe, Masahiko
last_name: Watanabe
- first_name: Ryuichi
full_name: Ryuichi Shigemoto
id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
last_name: Shigemoto
orcid: 0000-0001-8761-9444
- first_name: Robert
full_name: Stackman, Robert W
last_name: Stackman
- first_name: James
full_name: Maylie, James G
last_name: Maylie
- first_name: John
full_name: Adelman, John P
last_name: Adelman
citation:
ama: Allen D, Bond C, Luján R, et al. The SK2-long isoform directs synaptic localization
and function of SK2-containing channels. Nature Neuroscience. 2011;14(6):744-749.
doi:10.1038/nn.2832
apa: Allen, D., Bond, C., Luján, R., Ballesteros Merino, C., Lin, M., Wang, K.,
… Adelman, J. (2011). The SK2-long isoform directs synaptic localization and function
of SK2-containing channels. Nature Neuroscience. Nature Publishing Group.
https://doi.org/10.1038/nn.2832
chicago: Allen, Duane, Chris Bond, Rafael Luján, Carmen Ballesteros Merino, Michael
Lin, Kang Wang, Nathan Klett, et al. “The SK2-Long Isoform Directs Synaptic Localization
and Function of SK2-Containing Channels.” Nature Neuroscience. Nature Publishing
Group, 2011. https://doi.org/10.1038/nn.2832.
ieee: D. Allen et al., “The SK2-long isoform directs synaptic localization
and function of SK2-containing channels,” Nature Neuroscience, vol. 14,
no. 6. Nature Publishing Group, pp. 744–749, 2011.
ista: Allen D, Bond C, Luján R, Ballesteros Merino C, Lin M, Wang K, Klett N, Watanabe
M, Shigemoto R, Stackman R, Maylie J, Adelman J. 2011. The SK2-long isoform directs
synaptic localization and function of SK2-containing channels. Nature Neuroscience.
14(6), 744–749.
mla: Allen, Duane, et al. “The SK2-Long Isoform Directs Synaptic Localization and
Function of SK2-Containing Channels.” Nature Neuroscience, vol. 14, no.
6, Nature Publishing Group, 2011, pp. 744–49, doi:10.1038/nn.2832.
short: D. Allen, C. Bond, R. Luján, C. Ballesteros Merino, M. Lin, K. Wang, N. Klett,
M. Watanabe, R. Shigemoto, R. Stackman, J. Maylie, J. Adelman, Nature Neuroscience
14 (2011) 744–749.
date_created: 2018-12-11T11:58:07Z
date_published: 2011-06-01T00:00:00Z
date_updated: 2021-01-12T06:57:56Z
day: '01'
doi: 10.1038/nn.2832
extern: 1
intvolume: ' 14'
issue: '6'
month: '06'
page: 744 - 749
publication: Nature Neuroscience
publication_status: published
publisher: Nature Publishing Group
publist_id: '4388'
quality_controlled: 0
status: public
title: The SK2-long isoform directs synaptic localization and function of SK2-containing
channels
type: journal_article
volume: 14
year: '2011'
...
---
_id: '1723'
abstract:
- lang: eng
text: The emergence of differences in the arrangement of cells is the first step
towards the establishment of many organs. Understanding this process is limited
by the lack of systematic characterization of epithelial organisation. Here we
apply network theory at the scale of individual cells to uncover patterns in cell-to-cell
contacts that govern epithelial organisation. We provide an objective characterisation
of epithelia using network representation, where cells are nodes and cell contacts
are links. The features of individual cells, together with attributes of the cellular
network, produce a defining signature that distinguishes epithelia from different
organs, species, developmental stages and genetic conditions. The approach permits
characterization, quantification and classification of normal and perturbed epithelia,
and establishes a framework for understanding molecular mechanisms that underpin
the architecture of complex tissues.
acknowledgement: We acknowledge the MRC for funding, M.M.B. acknowledges Darwin College,
EMBO YIP and Schlumberger Ltd for support. L.M.E. is funded by the Marie Curie and
the EMBO fellowships. L.d.F.C. is grateful to FAPESP (05/00587-5) and CNPq (301303/06-1)
for financial support. Part of this work was performed during a Visiting Scholarship
to L.d.F.C. from St Catharine's College, University of Cambridge. J.B. is supported
by the MRC (UK) and A.K. by a FEBS fellowship
author:
- first_name: Luis
full_name: Escudero, Luis M
last_name: Escudero
- first_name: Luciano
full_name: Costa, Luciano
last_name: Costa
- first_name: Anna
full_name: Anna Kicheva
id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
last_name: Kicheva
orcid: 0000-0003-4509-4998
- first_name: James
full_name: Briscoe, James
last_name: Briscoe
- first_name: Matthew
full_name: Freeman, Matthew
last_name: Freeman
- first_name: Madan
full_name: Babu, Madan M
last_name: Babu
citation:
ama: Escudero L, Costa L, Kicheva A, Briscoe J, Freeman M, Babu M. Epithelial organisation
revealed by a network of cellular contacts. Nature Communications. 2011;2(1).
doi:10.1038/ncomms1536
apa: Escudero, L., Costa, L., Kicheva, A., Briscoe, J., Freeman, M., & Babu,
M. (2011). Epithelial organisation revealed by a network of cellular contacts.
Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms1536
chicago: Escudero, Luis, Luciano Costa, Anna Kicheva, James Briscoe, Matthew Freeman,
and Madan Babu. “Epithelial Organisation Revealed by a Network of Cellular Contacts.”
Nature Communications. Nature Publishing Group, 2011. https://doi.org/10.1038/ncomms1536.
ieee: L. Escudero, L. Costa, A. Kicheva, J. Briscoe, M. Freeman, and M. Babu, “Epithelial
organisation revealed by a network of cellular contacts,” Nature Communications,
vol. 2, no. 1. Nature Publishing Group, 2011.
ista: Escudero L, Costa L, Kicheva A, Briscoe J, Freeman M, Babu M. 2011. Epithelial
organisation revealed by a network of cellular contacts. Nature Communications.
2(1).
mla: Escudero, Luis, et al. “Epithelial Organisation Revealed by a Network of Cellular
Contacts.” Nature Communications, vol. 2, no. 1, Nature Publishing Group,
2011, doi:10.1038/ncomms1536.
short: L. Escudero, L. Costa, A. Kicheva, J. Briscoe, M. Freeman, M. Babu, Nature
Communications 2 (2011).
date_created: 2018-12-11T11:53:40Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2021-01-12T06:52:46Z
day: '01'
doi: 10.1038/ncomms1536
extern: 1
intvolume: ' 2'
issue: '1'
month: '01'
publication: Nature Communications
publication_status: published
publisher: Nature Publishing Group
publist_id: '5405'
quality_controlled: 0
status: public
title: Epithelial organisation revealed by a network of cellular contacts
type: journal_article
volume: 2
year: '2011'
...
---
_id: '1724'
abstract:
- lang: eng
text: Morphogens, such as Decapentaplegic (Dpp) in the fly imaginal discs, form
graded concentration profiles that control patterning and growth of developing
organs. In the imaginal discs, proliferative growth is homogeneous in space, posing
the conundrum of how morphogen concentration gradients could control position-independent
growth. To understand the mechanism of proliferation control by the Dpp gradient,
we quantified Dpp concentration and signaling levels during wing disc growth.
Both Dpp concentration and signaling gradients scale with tissue size during development.
On average, cells divide when Dpp signaling levels have increased by 50%. Our
observations are consistent with a growth control mechanism based on temporal
changes of cellular morphogen signaling levels. For a scaling gradient, this mechanism
generates position-independent growth rates.
acknowledgement: P.M., T.B., and F.J. were supported by the Max-Planck-Gesellschaft.
O.W., A.K., C.S., and M.G.-G. were supported by Geneva University and by European
Research Council advanced investigator grant (SARA), SystemsX (LipidX), Swiss National
Science Foundation (SNF), National Centre of Competence in Research (NCCR) chemical
biology and Frontiers in Genetics and R'equip grants
author:
- first_name: Ortrud
full_name: Wartlick, Ortrud
last_name: Wartlick
- first_name: Peer
full_name: Mumcu, Peer
last_name: Mumcu
- first_name: Anna
full_name: Anna Kicheva
id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
last_name: Kicheva
orcid: 0000-0003-4509-4998
- first_name: Thomas
full_name: Bittig, Thomas
last_name: Bittig
- first_name: Carole
full_name: Seum, Carole
last_name: Seum
- first_name: Frank
full_name: Jülicher, Frank
last_name: Jülicher
- first_name: Marcos
full_name: González-Gaitán, Marcos A
last_name: González Gaitán
citation:
ama: Wartlick O, Mumcu P, Kicheva A, et al. Dynamics of Dpp signaling and proliferation
control. Science. 2011;331(6021):1154-1159. doi:10.1126/science.1200037
apa: Wartlick, O., Mumcu, P., Kicheva, A., Bittig, T., Seum, C., Jülicher, F., &
González Gaitán, M. (2011). Dynamics of Dpp signaling and proliferation control.
Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.1200037
chicago: Wartlick, Ortrud, Peer Mumcu, Anna Kicheva, Thomas Bittig, Carole Seum,
Frank Jülicher, and Marcos González Gaitán. “Dynamics of Dpp Signaling and Proliferation
Control.” Science. American Association for the Advancement of Science,
2011. https://doi.org/10.1126/science.1200037.
ieee: O. Wartlick et al., “Dynamics of Dpp signaling and proliferation control,”
Science, vol. 331, no. 6021. American Association for the Advancement of
Science, pp. 1154–1159, 2011.
ista: Wartlick O, Mumcu P, Kicheva A, Bittig T, Seum C, Jülicher F, González Gaitán
M. 2011. Dynamics of Dpp signaling and proliferation control. Science. 331(6021),
1154–1159.
mla: Wartlick, Ortrud, et al. “Dynamics of Dpp Signaling and Proliferation Control.”
Science, vol. 331, no. 6021, American Association for the Advancement of
Science, 2011, pp. 1154–59, doi:10.1126/science.1200037.
short: O. Wartlick, P. Mumcu, A. Kicheva, T. Bittig, C. Seum, F. Jülicher, M. González
Gaitán, Science 331 (2011) 1154–1159.
date_created: 2018-12-11T11:53:40Z
date_published: 2011-03-04T00:00:00Z
date_updated: 2021-01-12T06:52:46Z
day: '04'
doi: 10.1126/science.1200037
extern: 1
intvolume: ' 331'
issue: '6021'
month: '03'
page: 1154 - 1159
publication: Science
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '5406'
quality_controlled: 0
status: public
title: Dynamics of Dpp signaling and proliferation control
type: journal_article
volume: 331
year: '2011'
...
---
_id: '1754'
abstract:
- lang: eng
text: 'We report on a technique enabling electrical control of the contact silicidation
process in silicon nanowire devices. Undoped silicon nanowires were contacted
by pairs of nickel electrodes and each contact was selectively silicided by means
of the Joule effect. By a realtime monitoring of the nanowire electrical resistance
during the contact silicidation process we were able to fabricate nickel-silicide/silicon/nickel-
silicide devices with controlled silicon channel length down to 8 nm. '
acknowledgement: This work was supported by the Agence Nationale de la Recherche (ANR)
through the ACCESS and COHESION projects and by the European Commission through
the Chemtronics program MEST-CT-2005-020513
arxiv: 1
author:
- first_name: Massimo
full_name: Mongillo, Massimo
last_name: Mongillo
- first_name: Panayotis
full_name: Spathis, Panayotis
last_name: Spathis
- first_name: Georgios
full_name: Katsaros, Georgios
id: 38DB5788-F248-11E8-B48F-1D18A9856A87
last_name: Katsaros
- first_name: Pascal
full_name: Gentile, Pascal
last_name: Gentile
- first_name: Marc
full_name: Sanquer, Marc
last_name: Sanquer
- first_name: Silvano
full_name: De Franceschi, Silvano
last_name: De Franceschi
citation:
ama: Mongillo M, Spathis P, Katsaros G, Gentile P, Sanquer M, De Franceschi S. Joule-assisted
silicidation for short-channel silicon nanowire devices. ACS Nano. 2011;5(9):7117-7123.
doi:10.1021/nn202524j
apa: Mongillo, M., Spathis, P., Katsaros, G., Gentile, P., Sanquer, M., & De
Franceschi, S. (2011). Joule-assisted silicidation for short-channel silicon nanowire
devices. ACS Nano. American Chemical Society. https://doi.org/10.1021/nn202524j
chicago: Mongillo, Massimo, Panayotis Spathis, Georgios Katsaros, Pascal Gentile,
Marc Sanquer, and Silvano De Franceschi. “Joule-Assisted Silicidation for Short-Channel
Silicon Nanowire Devices.” ACS Nano. American Chemical Society, 2011. https://doi.org/10.1021/nn202524j.
ieee: M. Mongillo, P. Spathis, G. Katsaros, P. Gentile, M. Sanquer, and S. De Franceschi,
“Joule-assisted silicidation for short-channel silicon nanowire devices,” ACS
Nano, vol. 5, no. 9. American Chemical Society, pp. 7117–7123, 2011.
ista: Mongillo M, Spathis P, Katsaros G, Gentile P, Sanquer M, De Franceschi S.
2011. Joule-assisted silicidation for short-channel silicon nanowire devices.
ACS Nano. 5(9), 7117–7123.
mla: Mongillo, Massimo, et al. “Joule-Assisted Silicidation for Short-Channel Silicon
Nanowire Devices.” ACS Nano, vol. 5, no. 9, American Chemical Society,
2011, pp. 7117–23, doi:10.1021/nn202524j.
short: M. Mongillo, P. Spathis, G. Katsaros, P. Gentile, M. Sanquer, S. De Franceschi,
ACS Nano 5 (2011) 7117–7123.
date_created: 2018-12-11T11:53:50Z
date_published: 2011-09-27T00:00:00Z
date_updated: 2021-01-12T06:52:59Z
day: '27'
doi: 10.1021/nn202524j
extern: '1'
external_id:
arxiv:
- '1110.5668'
intvolume: ' 5'
issue: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1110.5668
month: '09'
oa: 1
oa_version: Preprint
page: 7117 - 7123
publication: ACS Nano
publication_status: published
publisher: American Chemical Society
publist_id: '5370'
quality_controlled: '1'
status: public
title: Joule-assisted silicidation for short-channel silicon nanowire devices
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2011'
...
---
_id: '1755'
abstract:
- lang: eng
text: Spin-selective tunneling of holes in SiGe nanocrystals contacted by normal-metal
leads is reported. The spin selectivity arises from an interplay of the orbital
effect of the magnetic field with the strong spin-orbit interaction present in
the valence band of the semiconductor. We demonstrate both experimentally and
theoretically that spin-selective tunneling in semiconductor nanostructures can
be achieved without the use of ferromagnetic contacts. The reported effect, which
relies on mixing the light and heavy holes, should be observable in a broad class
of quantum-dot systems formed in semiconductors with a degenerate valence band.
acknowledgement: The work was supported by the Agence Nationale de la Recherche (through
the ACCESS and COHESION projects), U.S. DOE Contract No. DE-FG02-08ER46482 (Yale),
and the Nanosciences Foundation at Grenoble, France. G. K. acknowledges support
from the Deutsche Forschungsgemeinschaft
author:
- first_name: Georgios
full_name: Georgios Katsaros
id: 38DB5788-F248-11E8-B48F-1D18A9856A87
last_name: Katsaros
- first_name: Vitaly
full_name: Golovach, Vitaly N
last_name: Golovach
- first_name: Panayotis
full_name: Spathis, Panayotis N
last_name: Spathis
- first_name: Natalia
full_name: Ares, Natalia
last_name: Ares
- first_name: Mathieu
full_name: Stoffel, Mathieu
last_name: Stoffel
- first_name: Frank
full_name: Fournel, Frank
last_name: Fournel
- first_name: Oliver
full_name: Schmidt, Oliver G
last_name: Schmidt
- first_name: Leonid
full_name: Glazman, Leonid I
last_name: Glazman
- first_name: Silvano
full_name: De Franceschi, Silvano
last_name: De Franceschi
citation:
ama: Katsaros G, Golovach V, Spathis P, et al. Observation of spin-selective tunneling
in sige nanocrystals. Physical Review Letters. 2011;107(24). doi:10.1103/PhysRevLett.107.246601
apa: Katsaros, G., Golovach, V., Spathis, P., Ares, N., Stoffel, M., Fournel, F.,
… De Franceschi, S. (2011). Observation of spin-selective tunneling in sige nanocrystals.
Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.107.246601
chicago: Katsaros, Georgios, Vitaly Golovach, Panayotis Spathis, Natalia Ares, Mathieu
Stoffel, Frank Fournel, Oliver Schmidt, Leonid Glazman, and Silvano De Franceschi.
“Observation of Spin-Selective Tunneling in Sige Nanocrystals.” Physical Review
Letters. American Physical Society, 2011. https://doi.org/10.1103/PhysRevLett.107.246601.
ieee: G. Katsaros et al., “Observation of spin-selective tunneling in sige
nanocrystals,” Physical Review Letters, vol. 107, no. 24. American Physical
Society, 2011.
ista: Katsaros G, Golovach V, Spathis P, Ares N, Stoffel M, Fournel F, Schmidt O,
Glazman L, De Franceschi S. 2011. Observation of spin-selective tunneling in sige
nanocrystals. Physical Review Letters. 107(24).
mla: Katsaros, Georgios, et al. “Observation of Spin-Selective Tunneling in Sige
Nanocrystals.” Physical Review Letters, vol. 107, no. 24, American Physical
Society, 2011, doi:10.1103/PhysRevLett.107.246601.
short: G. Katsaros, V. Golovach, P. Spathis, N. Ares, M. Stoffel, F. Fournel, O.
Schmidt, L. Glazman, S. De Franceschi, Physical Review Letters 107 (2011).
date_created: 2018-12-11T11:53:50Z
date_published: 2011-12-07T00:00:00Z
date_updated: 2021-01-12T06:53:00Z
day: '07'
doi: 10.1103/PhysRevLett.107.246601
extern: 1
intvolume: ' 107'
issue: '24'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1107.3919
month: '12'
oa: 1
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '5369'
quality_controlled: 0
status: public
title: Observation of spin-selective tunneling in sige nanocrystals
type: journal_article
volume: 107
year: '2011'
...
---
_id: '17647'
abstract:
- lang: eng
text: We study the effects of a thin gaseous accretion disk on the inspiral of a
stellar--mass black hole into a supermassive black hole. We construct a phenomenological
angular momentum transport equation that reproduces known disk effects. Disk torques
modify the gravitational wave phase evolution to detectable levels with LISA for
reasonable disk parameters. The Fourier transform of disk-modified waveforms acquires
a correction with a different frequency trend than post-Newtonian vacuum terms.
Such inspirals could be used to detect accretion disks with LISA and to probe
their physical parameters.
article_number: '171103'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Nicolás
full_name: Yunes, Nicolás
last_name: Yunes
- first_name: Bence
full_name: Kocsis, Bence
last_name: Kocsis
- first_name: Abraham
full_name: Loeb, Abraham
last_name: Loeb
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: Yunes N, Kocsis B, Loeb A, Haiman Z. Imprint of accretion disk-induced migration
on gravitational waves from extreme mass ratio inspirals. Physical Review Letters.
2011;107(17). doi:10.1103/physrevlett.107.171103
apa: Yunes, N., Kocsis, B., Loeb, A., & Haiman, Z. (2011). Imprint of accretion
disk-induced migration on gravitational waves from extreme mass ratio inspirals.
Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.107.171103
chicago: Yunes, Nicolás, Bence Kocsis, Abraham Loeb, and Zoltán Haiman. “Imprint
of Accretion Disk-Induced Migration on Gravitational Waves from Extreme Mass Ratio
Inspirals.” Physical Review Letters. American Physical Society, 2011. https://doi.org/10.1103/physrevlett.107.171103.
ieee: N. Yunes, B. Kocsis, A. Loeb, and Z. Haiman, “Imprint of accretion disk-induced
migration on gravitational waves from extreme mass ratio inspirals,” Physical
Review Letters, vol. 107, no. 17. American Physical Society, 2011.
ista: Yunes N, Kocsis B, Loeb A, Haiman Z. 2011. Imprint of accretion disk-induced
migration on gravitational waves from extreme mass ratio inspirals. Physical Review
Letters. 107(17), 171103.
mla: Yunes, Nicolás, et al. “Imprint of Accretion Disk-Induced Migration on Gravitational
Waves from Extreme Mass Ratio Inspirals.” Physical Review Letters, vol.
107, no. 17, 171103, American Physical Society, 2011, doi:10.1103/physrevlett.107.171103.
short: N. Yunes, B. Kocsis, A. Loeb, Z. Haiman, Physical Review Letters 107 (2011).
date_created: 2024-09-06T07:26:09Z
date_published: 2011-10-21T00:00:00Z
date_updated: 2024-09-24T12:44:50Z
day: '21'
doi: 10.1103/physrevlett.107.171103
extern: '1'
external_id:
arxiv:
- '1103.4609'
intvolume: ' 107'
issue: '17'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1103.4609'
month: '10'
oa: 1
oa_version: Preprint
publication: Physical Review Letters
publication_identifier:
issn:
- 0031-9007
- 1079-7114
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Imprint of accretion disk-induced migration on gravitational waves from extreme
mass ratio inspirals
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 107
year: '2011'
...
---
_id: '17661'
abstract:
- lang: eng
text: Recent studies have shown that the number counts of convergence peaks N(kappa)
in weak lensing (WL) maps, expected from large forthcoming surveys, can be a useful
probe of cosmology. We follow up on this finding, and use a suite of WL convergence
maps, obtained from ray-tracing N-body simulations, to study (i) the physical
origin of WL peaks with different heights, and (ii) whether the peaks contain
information beyond the convergence power spectrum P_ell. In agreement with earlier
work, we find that high peaks (with amplitudes >~ 3.5 sigma, where sigma is the
r.m.s. of the convergence kappa) are typically dominated by a single massive halo.
In contrast, medium-height peaks (~0.5-1.5 sigma) cannot be attributed to a single
collapsed dark matter halo, and are instead created by the projection of multiple
(typically, 4-8) halos along the line of sight, and by random galaxy shape noise.
Nevertheless, these peaks dominate the sensitivity to the cosmological parameters
w, sigma_8, and Omega_m. We find that the peak height distribution and its dependence
on cosmology differ significantly from predictions in a Gaussian random field.
We directly compute the marginalized errors on w, sigma_8, and Omega_m from the
N(kappa) + P_ell combination, including redshift tomography with source galaxies
at z_s=1 and z_s=2. We find that the N(kappa) + P_ell combination has approximately
twice the cosmological sensitivity compared to P_ell alone. These results demonstrate
that N(kappa) contains non-Gaussian information complementary to the power spectrum.
article_number: '043529'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Xiuyuan
full_name: Yang, Xiuyuan
last_name: Yang
- first_name: Jan M.
full_name: Kratochvil, Jan M.
last_name: Kratochvil
- first_name: Sheng
full_name: Wang, Sheng
last_name: Wang
- first_name: Eugene A.
full_name: Lim, Eugene A.
last_name: Lim
- 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: Yang X, Kratochvil JM, Wang S, Lim EA, Haiman Z, May M. Cosmological information
in weak lensing peaks. Physical Review D. 2011;84(4). doi:10.1103/physrevd.84.043529
apa: Yang, X., Kratochvil, J. M., Wang, S., Lim, E. A., Haiman, Z., & May, M.
(2011). Cosmological information in weak lensing peaks. Physical Review D.
American Physical Society. https://doi.org/10.1103/physrevd.84.043529
chicago: Yang, Xiuyuan, Jan M. Kratochvil, Sheng Wang, Eugene A. Lim, Zoltán Haiman,
and Morgan May. “Cosmological Information in Weak Lensing Peaks.” Physical
Review D. American Physical Society, 2011. https://doi.org/10.1103/physrevd.84.043529.
ieee: X. Yang, J. M. Kratochvil, S. Wang, E. A. Lim, Z. Haiman, and M. May, “Cosmological
information in weak lensing peaks,” Physical Review D, vol. 84, no. 4.
American Physical Society, 2011.
ista: Yang X, Kratochvil JM, Wang S, Lim EA, Haiman Z, May M. 2011. Cosmological
information in weak lensing peaks. Physical Review D. 84(4), 043529.
mla: Yang, Xiuyuan, et al. “Cosmological Information in Weak Lensing Peaks.” Physical
Review D, vol. 84, no. 4, 043529, American Physical Society, 2011, doi:10.1103/physrevd.84.043529.
short: X. Yang, J.M. Kratochvil, S. Wang, E.A. Lim, Z. Haiman, M. May, Physical
Review D 84 (2011).
date_created: 2024-09-06T07:39:00Z
date_published: 2011-08-24T00:00:00Z
date_updated: 2024-09-25T07:25:48Z
day: '24'
doi: 10.1103/physrevd.84.043529
extern: '1'
external_id:
arxiv:
- '1109.6333'
intvolume: ' 84'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1109.6333'
month: '08'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
issn:
- 1550-7998
- 1550-2368
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cosmological information in weak lensing peaks
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 84
year: '2011'
...
---
_id: '17676'
abstract:
- lang: eng
text: It has been shown that HD molecules can form efficiently in metal-free gas
collapsing into massive protogalactic halos at high redshift. The resulting radiative
cooling by HD can lower the gas temperature to that of the cosmic microwave background,
T_CMB=2.7(1+z)K, significantly below the temperature of a few 100 K achievable
via H_2-cooling alone, and thus reduce the masses of the first generation of stars.
Here we consider the suppression of HD-cooling by UV irradiation in the Lyman-Werner
(LW) bands. We include photo-dissociation of both H_2 and HD, and explicitly compute
the self-shielding and shielding of both molecules by neutral hydrogen as well
as the shielding of HD by H_2. We use a simplified dynamical collapse model, and
follow the chemical and thermal evolution of the gas, in the presence of a UV
background. We find that a LW flux of J_crit = 1e-22 erg/cm^2/sr/s/Hz is able
to suppress HD cooling and thus prevent collapsing primordial gas from reaching
temperatures below 100 K. The main reason for the lack of HD cooling for J>J_crit
is the partial photo-dissociation of H_2, which prevents the gas from reaching
sufficiently low temperatures (T<150K) for HD to become the dominant coolant;
direct HD photo-dissociation is unimportant except for a narrow range of fluxes
and column densities. Since the prevention of HD-cooling requires only partial
H_2 photo-dissociation, the critical flux J_crit is modest, and is below the UV
background required to reionize the universe at redshift z=10-20. We conclude
that HD-cooling can reduce the masses of typical stars only in rare halos forming
well before the epoch of reionization.
alternative_title:
- Suppression of HD cooling in primordial gas
article_processing_charge: No
article_type: original
author:
- first_name: J.
full_name: Wolcott-Green, J.
last_name: Wolcott-Green
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: Wolcott-Green J, Haiman Z. Suppression of HD cooling in protogalactic gas clouds
by Lyman-Werner radiation. Monthly Notices of the Royal Astronomical Society.
2011;412(4):2603-2616. doi:10.1111/j.1365-2966.2010.18080.x
apa: Wolcott-Green, J., & Haiman, Z. (2011). Suppression of HD cooling in protogalactic
gas clouds by Lyman-Werner radiation. Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1111/j.1365-2966.2010.18080.x
chicago: Wolcott-Green, J., and Zoltán Haiman. “Suppression of HD Cooling in Protogalactic
Gas Clouds by Lyman-Werner Radiation.” Monthly Notices of the Royal Astronomical
Society. Oxford University Press, 2011. https://doi.org/10.1111/j.1365-2966.2010.18080.x.
ieee: J. Wolcott-Green and Z. Haiman, “Suppression of HD cooling in protogalactic
gas clouds by Lyman-Werner radiation,” Monthly Notices of the Royal Astronomical
Society, vol. 412, no. 4. Oxford University Press, pp. 2603–2616, 2011.
ista: Wolcott-Green J, Haiman Z. 2011. Suppression of HD cooling in protogalactic
gas clouds by Lyman-Werner radiation. Monthly Notices of the Royal Astronomical
Society. 412(4), 2603–2616.
mla: Wolcott-Green, J., and Zoltán Haiman. “Suppression of HD Cooling in Protogalactic
Gas Clouds by Lyman-Werner Radiation.” Monthly Notices of the Royal Astronomical
Society, vol. 412, no. 4, Oxford University Press, 2011, pp. 2603–16, doi:10.1111/j.1365-2966.2010.18080.x.
short: J. Wolcott-Green, Z. Haiman, Monthly Notices of the Royal Astronomical Society
412 (2011) 2603–2616.
date_created: 2024-09-06T07:52:22Z
date_published: 2011-04-08T00:00:00Z
date_updated: 2024-09-25T08:47:23Z
day: '08'
doi: 10.1111/j.1365-2966.2010.18080.x
extern: '1'
intvolume: ' 412'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1111/j.1365-2966.2010.18080.x
month: '04'
oa: 1
oa_version: Published Version
page: 2603-2616
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Suppression of HD cooling in protogalactic gas clouds by Lyman-Werner radiation
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 412
year: '2011'
...
---
_id: '17681'
abstract:
- lang: eng
text: The gravitational waves (GWs) emitted by inspiralling binary black holes,
expected to be detected by the Laser Interferometer Space Antenna (LISA), could
be used to determine the luminosity distance to these sources with the unprecedented
precision of ≲1 per cent. We study cosmological parameter constraints from such
standard sirens, in the presence of gravitational lensing by large-scale structure.
Lensing introduces magnification with a probability distribution function (PDF)
whose shape has significant skewness and kurtosis, and depends on cosmological
parameters. We use Monte Carlo simulations to generate mock samples of standard
sirens, including a small intrinsic scatter, as well as the additional, larger
scatter from lensing, in their inferred distances. We derive constraints on cosmological
parameters, by simultaneously fitting the mean and the distribution of the residuals
on the distance versus redshift (dL–z) Hubble diagram. We find that for standard
sirens at redshift z≈ 1, the sensitivity to a single cosmological parameter, such
as the matter density Ωm, or the dark energy equation of state w, is ∼50–80 per
cent tighter when the lensing PDF is used, compared to the sensitivity derived
from a Gaussian PDF with the same variance. When these two parameters are constrained
simultaneously, the non-Gaussian shape yields a further enhanced improvement (by
∼120 per cent), owing to the correlation between the parameters. The sensitivity
to the amplitude of the matter power spectrum, σ8 from the cosmological dependence
of the PDF alone, however, is ∼20 per cent worse than that from the Gaussian PDF.
The improvements for Ωm and w arise purely from the non-Gaussian shape of the
lensing PDF and can be attributed specifically to the sharpness of the peak of
this PDF (i.e. to a finite kurtosis); the dependence of the PDF on these parameters
does not improve constraints relative to those available from the mean dL–z relation.
At higher redshifts, the PDF resembles a Gaussian more closely, and the effects
of the non-Gaussianities become less prominent. These results highlight the importance
of obtaining an accurate and reliable PDF of the lensing convergence, in order
to realize the full potential of standard sirens as cosmological probes.
alternative_title:
- WL and GW standard sirens
article_processing_charge: No
article_type: original
author:
- first_name: Cien
full_name: Shang, Cien
last_name: Shang
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'Shang C, Haiman Z. Cosmology with standard sirens: The importance of the shape
of the lensing magnification distribution. Monthly Notices of the Royal Astronomical
Society. 2011;411(1):9-22. doi:10.1111/j.1365-2966.2010.17607.x'
apa: 'Shang, C., & Haiman, Z. (2011). Cosmology with standard sirens: The importance
of the shape of the lensing magnification distribution. Monthly Notices of
the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1111/j.1365-2966.2010.17607.x'
chicago: 'Shang, Cien, and Zoltán Haiman. “Cosmology with Standard Sirens: The Importance
of the Shape of the Lensing Magnification Distribution.” Monthly Notices of
the Royal Astronomical Society. Oxford University Press, 2011. https://doi.org/10.1111/j.1365-2966.2010.17607.x.'
ieee: 'C. Shang and Z. Haiman, “Cosmology with standard sirens: The importance of
the shape of the lensing magnification distribution,” Monthly Notices of the
Royal Astronomical Society, vol. 411, no. 1. Oxford University Press, pp.
9–22, 2011.'
ista: 'Shang C, Haiman Z. 2011. Cosmology with standard sirens: The importance of
the shape of the lensing magnification distribution. Monthly Notices of the Royal
Astronomical Society. 411(1), 9–22.'
mla: 'Shang, Cien, and Zoltán Haiman. “Cosmology with Standard Sirens: The Importance
of the Shape of the Lensing Magnification Distribution.” Monthly Notices of
the Royal Astronomical Society, vol. 411, no. 1, Oxford University Press,
2011, pp. 9–22, doi:10.1111/j.1365-2966.2010.17607.x.'
short: C. Shang, Z. Haiman, Monthly Notices of the Royal Astronomical Society 411
(2011) 9–22.
date_created: 2024-09-06T08:07:44Z
date_published: 2011-01-21T00:00:00Z
date_updated: 2024-09-25T09:04:38Z
day: '21'
doi: 10.1111/j.1365-2966.2010.17607.x
extern: '1'
intvolume: ' 411'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1111/j.1365-2966.2010.17607.x
month: '01'
oa: 1
oa_version: Published Version
page: 9-22
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Cosmology with standard sirens: The importance of the shape of the lensing
magnification distribution'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 411
year: '2011'
...
---
_id: '17690'
abstract:
- lang: eng
text: The ability of primordial gas to cool in proto-galactic haloes exposed to
Lyman-Werner (LW) radiation is critically dependent on the self-shielding of H_2.
We perform radiative transfer calculations of LW line photons, post-processing
outputs from three-dimensional adaptive mesh refinement (AMR) simulations of haloes
with T_vir > 10^4 K at redshifts around z=10. We calculate the optically thick
photodissociation rate numerically, including the effects of density, temperature,
and velocity gradients in the gas, as well as line overlap and shielding of H_2
by HI, over a large number of sight-lines. In low-density regions (n<10^4 cm^-3)
the dissociation rates exceed those obtained using most previous approximations
by more than an order of magnitude; the correction is smaller at higher densities.
We trace the origin of the deviations primarily to inaccuracies of (i) the most
common fitting formula (Draine & Bertoldi 1996) for the suppression of the dissociation
rate and (ii) estimates for the effective shielding column density from local
properties of the gas. The combined effects of gas temperature and velocity gradients
are comparatively less important, typically altering the spherically averaged
rate only by a factor of less than two. We present a simple modification to the
DB96 fitting formula for the optically thick rate which improves agreement with
our numerical results to within approx. 15 per cent, and can be adopted in future
simulations. We find that estimates for the effective shielding column can be
improved by using the local Sobolev length. Our correction to the H_2 self-shielding
reduces the critical LW flux to suppress H_2-cooling in T_vir>10^4 K haloes by
an order of magnitude; this increases the number of such haloes in which supermassive
(approx. M=10^5 M_sun) black holes may have formed.
alternative_title:
- H 2 self-shielding in 3D simulations
article_processing_charge: No
article_type: original
author:
- first_name: J.
full_name: Wolcott-Green, J.
last_name: Wolcott-Green
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: G. L.
full_name: Bryan, G. L.
last_name: Bryan
citation:
ama: 'Wolcott-Green J, Haiman Z, Bryan GL. Photodissociation of H2 in protogalaxies:
Modelling self-shielding in three-dimensional simulations. Monthly Notices
of the Royal Astronomical Society. 2011;418(2):838-852. doi:10.1111/j.1365-2966.2011.19538.x'
apa: 'Wolcott-Green, J., Haiman, Z., & Bryan, G. L. (2011). Photodissociation
of H2 in protogalaxies: Modelling self-shielding in three-dimensional simulations.
Monthly Notices of the Royal Astronomical Society. Oxford University Press.
https://doi.org/10.1111/j.1365-2966.2011.19538.x'
chicago: 'Wolcott-Green, J., Zoltán Haiman, and G. L. Bryan. “Photodissociation
of H2 in Protogalaxies: Modelling Self-Shielding in Three-Dimensional Simulations.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2011. https://doi.org/10.1111/j.1365-2966.2011.19538.x.'
ieee: 'J. Wolcott-Green, Z. Haiman, and G. L. Bryan, “Photodissociation of H2 in
protogalaxies: Modelling self-shielding in three-dimensional simulations,” Monthly
Notices of the Royal Astronomical Society, vol. 418, no. 2. Oxford University
Press, pp. 838–852, 2011.'
ista: 'Wolcott-Green J, Haiman Z, Bryan GL. 2011. Photodissociation of H2 in protogalaxies:
Modelling self-shielding in three-dimensional simulations. Monthly Notices of
the Royal Astronomical Society. 418(2), 838–852.'
mla: 'Wolcott-Green, J., et al. “Photodissociation of H2 in Protogalaxies: Modelling
Self-Shielding in Three-Dimensional Simulations.” Monthly Notices of the Royal
Astronomical Society, vol. 418, no. 2, Oxford University Press, 2011, pp.
838–52, doi:10.1111/j.1365-2966.2011.19538.x.'
short: J. Wolcott-Green, Z. Haiman, G.L. Bryan, Monthly Notices of the Royal Astronomical
Society 418 (2011) 838–852.
date_created: 2024-09-06T08:37:08Z
date_published: 2011-11-16T00:00:00Z
date_updated: 2024-09-25T09:53:37Z
day: '16'
doi: 10.1111/j.1365-2966.2011.19538.x
extern: '1'
intvolume: ' 418'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1111/j.1365-2966.2011.19538.x
month: '11'
oa: 1
oa_version: Published Version
page: 838-852
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Photodissociation of H2 in protogalaxies: Modelling self-shielding in three-dimensional
simulations'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 418
year: '2011'
...