Closing in on the Cosmic Dawn: Quasar Growth and Reionization History at Redshift Seven

接近宇宙黎明：红移七号的类星体生长和再电离历史

• 批准号: 1908284
• 负责人: Xiaohui Fan
• 金额: $ 37万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1908284&HistoricalAwards=false
• 关键词: Closing; Cosmic; Dawn; Quasar; Growth

Distant luminous quasars directly probe the birth of the earliest supermassive black holes and the end of cosmic dark ages through cosmic reionization. We will conduct a multi-wavelength survey of a sample of about 30 quasars at distances exceeding 13 billion light years. This dataset will allow us to study how the young galaxies and quasars ended the cosmic dark ages about one billion years after the big bang, and how early black hole growth interacted with early galaxy formation. This project will also partner with the Flandrau Science Center & Planetarium at the University of Arizona to develop a summer program called Black Hole Week that will have broad impacts in education and outreach. Luminous quasars at high redshift provide direct probes of the evolution of supermassive black holes and the intergalactic medium at early cosmic time. This project will carry out a spectroscopy survey of about 30 quasars at redshift seven in optical and far-infrared wavelengths. This survey will map the history of reionization at its most active phase, and provide a first census of the relation between rapid black hole growth and galaxy assembly during the reionization era.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

遥远的发光类星体通过宇宙再电离直接探测最早的超大质量黑洞的诞生和宇宙暗时代的结束。我们将对距离超过130亿光年的大约30个类星体进行多波长观测。这个数据集将使我们能够研究年轻的星系和类星体如何在大爆炸后大约10亿年结束宇宙黑暗时代，以及早期黑洞增长如何与早期星系形成相互作用。该项目还将与亚利桑那大学弗兰德劳科学中心和天文馆合作，开发一项名为黑洞周的暑期计划，将在教育和外联方面产生广泛影响。高红移的发光类星体为超大质量黑洞和早期宇宙时间的星系间介质的演化提供了直接的探测器。该项目将对红移7的大约30个类星体进行光学和远红外波长的光谱分析。这项调查将绘制再电离最活跃阶段的历史地图，并首次普查再电离时期黑洞快速增长和星系组装之间的关系。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Discovery of the most luminous quasar of the last 9 Gyr

• DOI: 10.1017/pasa.2022.36
• 发表时间: 2022-06
• 期刊: Publications of the Astronomical Society of Australia
• 影响因子: 6.3
• 作者: C. Onken;Samuel Lai (赖民希);C. Wolf;A. Lucy;W. Hon;P. Tisserand;J. Sokoloski;G. Luna;R. Manick;Xiaohui Fan;Fuyan Bian (边福彦)

What boost galaxy mergers in two massive galaxy protoclusters at z = 2.24?

是什么促进了 z = 2.24 处两个巨大星系原团的星系合并？

• DOI: 10.1093/mnras/stad1543
• 发表时间: 2023
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Liu, Shuang;Zheng, Xian Zhong;Shi, Dong Dong;Cai, Zheng;Fan, Xiaohui;Wang, Xin;Yuan, Qirong;Xu, Haiguang;Pan, Zhizheng;Liu, Wenhao
• 通讯作者: Liu, Wenhao

ALMA 200 pc Imaging of a z ∼ 7 Quasar Reveals a Compact, Disk-like Host Galaxy

• DOI: 10.3847/1538-4357/ac49e8
• 发表时间: 2022-01
• 期刊: The Astrophysical Journal
• 作者: F. Walter;M. Neeleman;R. Decarli;B. Venemans;R. Meyer;A. Weiss;E. Bañados;S. Bosman;C. Carilli;Xiaohui Fan;D. Riechers;H. Rix;T. Thompson

Measuring the Density Fields around Bright Quasars at z ∼ 6 with XQR-30 Spectra

• DOI: 10.3847/1538-4357/ac658d
• 发表时间: 2021-10
• 期刊: The Astrophysical Journal
• 作者: Huanqing Chen;A. Eilers;S. Bosman;N. Gnedin;Xiaohui Fan;Feige Wang;Jinyi Yang;V. D’Odorico;G. Becker;M. Bischetti;C. Mazzucchelli;A. Mesinger;A. Pallottini

The Spitzer Coverage of HSC-Deep with IRAC for Z studies (SHIRAZ). I. IRAC Mosaics

• DOI: 10.3847/1538-3881/acd773
• 发表时间: 2023-05
• 期刊: The Astronomical Journal
• 作者: M. Annunziatella;A. Sajina;M. Stefanon;D. Marchesini;M. Lacy;I. Labbé;Lilianna Houston;R. Bezanson;E. Egami;Xiaohui Fan;D. Farrah;J. Greene;A. Goulding;Yen-Ting Lin;Xin Liu;T. Moutard;Y. Ono;M. Ouchi;M. Sawicki;J. Surace;K. Whitaker