Interrelation of the Environment of Lyα Emitters and Massive Galaxies at 2 < z < 4.5
Interrelation of the Environment of Lyα Emitters and Massive Galaxies at 2 < z < 4.5
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DOI：
10.3847/1538-4357/abfc50
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发表时间：
2021-05
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影响因子：
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通讯作者：
Kei Ito;N. Kashikawa;Masayuki Tanaka;M. Kubo;Yongming Liang;J. Toshikawa;H. Uchiyama;Rikako Ishimoto;T. Yoshioka;Yoshihiro Takeda
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作者：
Kei Ito;N. Kashikawa;Masayuki Tanaka;M. Kubo;Yongming Liang;J. Toshikawa;H. Uchiyama;Rikako Ishimoto;T. Yoshioka;Yoshihiro Takeda
我们比较了Lyα发射体（LAE）和大质量恒星形成星系和静止星系（SFG和QG）在2 −20）的空间分布。从超密度分布来看，LAE位于比SFG和QG密度低的区域，而SFG和QG倾向于处于相同的超密度分布。与大质量星系相比，LAEs的不同空间分布可能归因于组装偏差或与大质量晕相关的大量中性氢气。这些结果加强了探索多个星系种群在量化高z宇宙的内在星系环境的重要性。
We present a comparison of the spatial distributions of Lyα emitters (LAEs) and massive star-forming and quiescent galaxies (SFGs and QGs) at 2 −20). From the overdensity distributions, LAEs are located in less dense regions than SFGs and QGs, whereas SFGs and QGs tend to be in the same overdensity distributions. The different spatial distributions of LAEs compared to those of massive galaxies may be attributed to assembly bias or large amounts of neutral hydrogen gas associated with massive halos. These results reinforce the importance of exploring multiple galaxy populations in quantifying the intrinsic galaxy environment of the high-z universe.