The properties of the first galaxies in the BlueTides simulation
The properties of the first galaxies in the BlueTides simulation
复制标题
BlueTides 模拟中第一个星系的属性
DOI:
10.1093/mnras/stx841
复制
发表时间:
2017
影响因子:
4.8
通讯作者:
Wilkins S
中科院分区:
文献类型:
--
作者:
Wilkins S
We employ the very large cosmological hydrodynamical simulation BlueTides to investigate the predicted properties of the galaxy population during the epoch of reionization (z> 8). BlueTides has a resolution and volume ((400/h≈ 577)3cMpc3) providing a population of galaxies that is well matched to depth and area of current observational surveys targeting the high-redshift Universe. Atz= 8, BlueTides includes almost 160 000 galaxies with stellar masses >108M⊙. The population of galaxies predicted by BlueTides closely matches observational constraints on both the galaxy stellar mass function and far-UV (150 nm) luminosity function. Galaxies in BlueTides are characterized by rapidly increasing star formation histories. Specific star formation rates decrease with redshift though remain largely insensitive to stellar mass. As a result of the enhanced surface density of metals, more massive galaxies are predicted to have higher dust attenuation resulting in a significant steepening of the observed far-UV luminosity function at high luminosities. The contribution of active supermassive black holes (SMBHs) to the UV luminosities of galaxies with stellar masses 109–10M⊙is around 3 per cent on average. Approximately 25 per cent of galaxies withM*≈ 1010M⊙are predicted to have active SMBHs that contribute >10 per cent of the total UV luminosity.
登录
查看更多内容
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
J. Pforr;C. Maraston;C. K. N. O. A. Observatory;Tucson;Usa Institute of Cosmology;Gravitation;U. Portsmouth;UK Harvard;Supercomputing;S. U. Technology;Australia.
通讯作者:
Australia.
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
J. Paardekooper;S. Khochfar;C. D. Vecchia
通讯作者:
C. D. Vecchia
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
Andrew J. Davis;S. Khochfar;C. D. Vecchia
通讯作者:
C. D. Vecchia
DOI:
10.1088/0004-637x/743/2/169
发表时间:
2011
期刊:
The Astrophysical Journal
影响因子:
--
作者:
K. Finlator;R. Davé;F. Ozel
通讯作者:
F. Ozel