论文标题
Luminous Lyman Alpha发射器可以$ z $ $ \ simeq $ 5.7和$ z $ $ \ simeq $ 6.6抑制星形组吗？
Can luminous Lyman alpha emitters at $z$ $\simeq$ 5.7 and $z$ $\simeq$ 6.6 suppress star formation?
论文作者
论文摘要
解决强大的紫外线辐射如何影响星系形成对于理解其演变至关重要。在各种场景中提出了通过强紫外线辐射（来自Starbursts或Agn）的恒星形成的淬灭，以解决某些天体物理问题。在发光源周围，已经发现了一些恒星形成减少的证据，但仅限于少数单个病例。尚未发现有关强紫外辐射在淬火恒星形成中的实际作用的直接证据。在这里，我们提供了统计证据的统计证据，即微弱的数量密度降低（Ab GEQ $ \ geq $ 24.75 mag）lyαemitters（Laes）周围的lyαemitters（laes）周围围绕明亮（<24.75 mag）laes laes，即使半径为10 pmpc to $ z $ $ $ $ $ \ $ \ $ \ simeq $ 5.7 laes。 Z $ \ simeq $ 6.6 laes也发现了类似的趋势，但仅在Bright Laes的1 pmpc半径内。我们在$ z $ $ \ simeq $ 5.7（$ z $ $ \ $ \ simeq $ 6.6）的总面积（21）度$^2 $中，使用Subaru/Hyper Subrime-Cam窄带数据中选择的1077（962）LAES样本，以$ Z $ $ \ simeq $ 5.7（$ z $ $ \ simeq $ 6.6），因此，结果对这些高级Redshift redshift Ranges the The First First tepers conterication。一个简单的分析计算表明，来自中央LAE的辐射不足以抑制AB MAG $ \ geq $ 24.75 MAG周围的LAE，这表明我们不知道的其他物理机制在起作用。我们的结果清楚地表明，环境正在为宇宙中的$ z $ \ sim $ 6的Galaxy组工作。
Addressing how strong UV radiation affects galaxy formation is central to understanding their evolution. The quenching of star formation via strong UV radiation (from starbursts or AGN) has been proposed in various scenes to solve certain astrophysical problems. Around luminous sources, some evidence of decreased star formation has been found but is limited to a handful of individual cases. No direct, conclusive evidence on the actual role of strong UV radiation in quenching star formation has been found. Here we present statistical evidence of decreased number density of faint (AB magnitude $\geq$ 24.75 mag) Lyαemitters (LAEs) around bright (AB magnitude < 24.75 mag) LAEs even when the radius goes up to 10 pMpc for $z$ $\simeq$ 5.7 LAEs. A similar trend is found for z $\simeq$ 6.6 LAEs but only within 1 pMpc radius from the bright LAEs. We use a large sample of 1077 (962) LAEs at $z$ $\simeq$ 5.7 ($z$ $\simeq$ 6.6) selected in total areas of 14 (21) deg$^2$ with Subaru/Hyper Suprime-Cam narrow-band data, and thus, the result is of statistical significance for the first time at these high redshift ranges. A simple analytical calculation indicates that the radiation from the central LAE is not enough to suppress LAEs with AB mag $\geq$ 24.75 mag around them, suggesting additional physical mechanisms we are unaware of are at work. Our results clearly show that the environment is at work for the galaxy formation at $z$ $\sim$ 6 in the Universe.
