Co-evolution of supermassive black holes and galaxies with the James Webb Space Telescope

超大质量黑洞和星系与詹姆斯·韦伯太空望远镜的共同演化

• 批准号: 22H01262
• 负责人: SILVERMAN John
• 金额: $ 11.15万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22H01262/
• 关键词: supermassive black holes; galaxy evolution; JWST

Supermassive black holes (SMBHs) and their host galaxies co-evolve over the last eight billion years of cosmic time (z < 2) as evident by their non-evolving mass ratio. This coupled growth is likely due to gas regulation from the SMBH itself or supernova triggered through ongoing star formation. We are determining whether the mass ratio M_BH/M_galaxy is truly universal (i.e., constant at all redshifts) by measuring this mass ratio in the early Universe (z ~ 6). This is achieved through our approved James Webb Space Telescope (JWST) Cycle 1 Program that targets 12 SHELLQs quasars at z ~ 6 from the HSC Subaru Strategic Program, with both imaging and spectroscopy. For the first time at z ~ 6, we are determining the (1) masses (and types) of galaxies hosting the first SMBHs, (2) their black hole masses based on the Balmer emission lines, and (3) the distribution functions of black hole mass and Eddington rate, all key to understanding the growth of early SMBHs. This analysis is being combined with our study of SMBHs at later cosmic times (1 < z < 3) to construct a full picture of the growth of galaxies and their black holes. This is accomplished using the COSMOS-Web, a JWST imaging survey of the COSMOS field. Both our SHELLQs program and COSMOS-Web are playing leading roles in quasar - host galaxy studies in the distant Universe.

超级质量的黑洞（SMBHS）及其宿主星系在过去八十亿年的宇宙时间（z <2）中共同进化，它们的非进化质量比很明显。这种耦合生长可能是由于SMBH本身的气体调节或通过正在进行的恒星形成触发的超新星的调节所致。我们正在确定M_BH/M_GALAXY是否通过测量早期宇宙中的质量比（Z〜6）来确定真正通用的（即在所有红移）。这是通过我们批准的James Webb太空望远镜（JWST）周期1程序来实现的，该程序针对HSC Subaru战略计划的Z〜6的12个shellqs quasars进行了实现，并具有成像和光谱。我们是在Z〜6时首次确定托管第一批SMBH的星系的（1）质量（和类型），（2）基于Balmer发射线的黑洞质量，以及（3）黑洞质量和Eddington速率的分布函数，所有这些都可以理解早期SMBHS的生长。该分析与我们在后来的宇宙时代（1 <z <3）的SMBH研究结合在一起，以构建星系及其黑洞的生长。这是使用Cosmos-Web（宇宙场的JWST成像调查）来完成的。我们的ShellQs计划和Cosmos -Web都在遥远宇宙中的类星体研究中扮演主角。

项目成果

Opening the Era of Quasar-host Studies at High Redshift with JWST

与 JWST 一起开启高红移类星体研究时代

• DOI: 10.3847/2041-8213/ac9c02
• 发表时间: 2022
• 期刊: The Astrophysical Journal Letters
• 作者: Ding Xuheng;Silverman John D.;Onoue Masafusa
• 通讯作者: Onoue Masafusa

A Machine-learning Approach to Assessing the Presence of Substructure in Quasar-host Galaxies Using the Hyper Suprime-cam Subaru Strategic Program

• DOI: 10.3847/1538-4357/acbd4a
• 发表时间: 2022-10
• 期刊: The Astrophysical Journal
• 作者: Chris Nagele;J. Silverman;T. Hartwig;Junyao Li;C. Bottrell;Xuheng Ding;Y. Toba

Inferences on Relations between Distant Supermassive Black Holes and Their Hosts Complemented by the Galaxy Fundamental Plane

星系基本面补充的遥远超大质量黑洞与其宿主关系的推论

• DOI: 10.3847/1538-4357/ac7648
• 发表时间: 2022
• 期刊: The Astrophysical Journal
• 作者: Silverman John D.;Li Junyao;Ding Xuheng
• 通讯作者: Ding Xuheng

Kavli Institute for Astronomy (KIAA)(中国)

卡维理天文研究所 (KIAA)（中国）