当前位置: X-MOL 学术Mon. Not. R. Astron. Soc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
On the slow quenching of M* galaxies: heavily-obscured AGNs clarify the picture
Monthly Notices of the Royal Astronomical Society ( IF 4.7 ) Pub Date : 2020-05-23 , DOI: 10.1093/mnras/staa1434
Thibaud Moutard 1 , Nicola Malavasi 2 , Marcin Sawicki 1 , Stéphane Arnouts 3 , Shruti Tripathi 1
Affiliation  

We investigate the connection between X-ray and radio-loud AGNs and the physical properties of their evolved and massive host galaxies, focussing on the mass-related quenching channel followed by $\mathcal{M}^\star (\simeq 10^{10.6} M_\odot)$ galaxies in the rest-frame NUVrK colour diagram at $0.2 10^{11}M_\odot$) galaxies, ruling out their feedback as a primary driver of $\mathcal{M}^\star$ galaxy quenching, we found that (2) X-ray AGNs affected by heavy obscuration of their soft X-ray emission are mostly hosted by $\mathcal{M}^\star$ galaxies that are in the process of quenching. This is consistent with a quenching scenario that involves mergers of (gas-poor) $\mathcal{M}^\star$ galaxies $after$ the onset of the quenching process, i.e., a scenario where $\mathcal{M}^\star$ galaxy mergers are not the cause but rather an aftermath of the quenching mechanism(s). In that respect, we discuss how our results may support a picture where the slow quenching of $\mathcal{M}^\star$ galaxies happens due to halo-halo mergers along cosmic filaments.

中文翻译:

关于 M* 星系的缓慢淬灭:严重模糊的 AGN 使图片变得清晰

我们研究了 X 射线和无线电响度 AGN 之间的联系及其演化和巨大宿主星系的物理特性,重点关注与质量相关的淬灭通道,然后是 $\mathcal{M}^\star (\simeq 10^{ 10.6} M_\odot)$ 星系在静止帧 NUVrK 颜色图中 $0.2 10^{11}M_\odot$) 星系,排除它们的反馈作为 $\mathcal{M}^\star$ 星系的主要驱动力在淬灭过程中,我们发现(2)X 射线 AGN 受其软 X 射线发射的严重遮挡影响,主要由处于淬灭过程中的 $\mathcal{M}^\star$ 星系承载。这与涉及(贫气)$\mathcal{M}^\star$ 星系在淬灭过程开始后$ 合并的淬灭情景一致,即,$\mathcal{M}^\star$ 星系合并不是原因,而是淬灭机制的后果。在这方面,我们讨论了我们的结果如何支持 $\mathcal{M}^\star$ 星系的缓慢淬灭是由于沿着宇宙细丝的晕晕合并而发生的图片。
更新日期:2020-05-23
down
wechat
bug