Cold stream stability during minor mergers
Cold stream stability during minor mergers
复制标题
小型合并期间的冷流稳定性
DOI:
10.1093/mnrasl/slu005
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发表时间:
2014-01
影响因子:
4.8
通讯作者:
Xi, Kang
中科院分区:
文献类型:
--
作者:
Longlong, Feng;Andrea V. Maccio;Jiang , Chang;Xi, Kang
We use high-resolution Eulerian simulations to study the stability of cold gas flows in a galaxy size dark matter halo (10(12) M-circle dot) at redshift z = 2. Our simulations show that a cold stream penetrating a hot gaseous halo is stable against thermal convection and Kelvin-Helmholtz instability. We then investigate the effect of a satellite orbiting the main halo in the plane of the stream. The satellite is able to perturb the stream and to inhibit cold gas accretion towards the centre of the halo for 0.5 Gyr. However, if the supply of cold gas at large distances is kept constant, the cold stream is able to re-establish itself after 0.3 Gyr. We conclude that cold streams are very stable against a large variety of internal and external perturbations.
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影响因子:
64.8
作者:
A. Dekel;Y. Birnboim;G. Engel;J. Freundlich;T. Goerdt;M. Mumcuoglu;E. Neistein;C. Pichon;R. Tey
通讯作者:
A. Dekel;Y. Birnboim;G. Engel;J. Freundlich;T. Goerdt;M. Mumcuoglu;E. Neistein;C. Pichon;R. Tey
DOI:
10.1088/0004-637x/777/1/48
发表时间:
2013-08
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Weishan Zhu;Longlong Feng;Yinhua Xia;Chi-Wang Shu;Q. Gu;L. Fang
通讯作者:
Weishan Zhu;Longlong Feng;Yinhua Xia;Chi-Wang Shu;Q. Gu;L. Fang
DOI:
10.1111/j.1365-2966.2012.20751.x
发表时间:
2011-10
影响因子:
4.8
作者:
M. Danovich;A. Dekel;O. Hahn;R. Teyssier
通讯作者:
M. Danovich;A. Dekel;O. Hahn;R. Teyssier
DOI:
10.1088/0004-637x/700/1/l1
发表时间:
2009-05
期刊:
The Astrophysical Journal
影响因子:
--
作者:
D. Keres̆;L. Hernquist
通讯作者:
D. Keres̆;L. Hernquist
DOI:
10.1111/j.1745-3933.2011.01018.x
发表时间:
2010-11
影响因子:
--
作者:
C. Faucher-Giguère;D. Keres̆
通讯作者:
C. Faucher-Giguère;D. Keres̆