WoU-MMA: Frequency and Abundance of Binary sUpermassive bLack holes from Optical Variability Surveys (FABULOVS)

WoU-MMA：来自光学变率巡天 (FABULOVS) 的双超大质量黑洞的频率和丰度

• 批准号: 2206499
• 负责人: Xin Liu
• 金额: $ 36.72万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2206499&HistoricalAwards=false
• 关键词: WoU; MMA; Frequency; Abundance; Binary

Supermassive black holes (SMBHs) are millions to billions of times more massive than the Sun. They are commonly found at the centers of massive galaxies. When galaxies merge, their central black holes should also combine. Binary SMBHs are ideal targets for multi-messenger astronomy, but no robust detection of binary SMBH has been made, due to observational limitations. This program will systematically identify and characterize binary SMBHs. It will deliver a database of robust binary SMBH candidates and provide constraints on their abundance and evolution. It will enable reliable forecasts for gravitational wave detection. The research team will also develop dedicated outreach programs that promote diversity in science. This program will combine high-quality long-term photometric and spectroscopic synoptic surveys to systematically identify and characterize sub-pc binary SMBHs. First, it aims to identify sub-pc binary SMBHs using long-term radial velocity shifts of active galactic nucleus (AGN) broad emission lines. It will test the hypothesis that the temporal drifts represent Doppler shifts from binary orbital motion. Second, it will identify milli-pc binary SMBHs from periodically variable AGNs. It will critically distinguish periodicity from stochastic variability. Combined with follow-up observations, it will provide a database of robust sub-pc binary SMBH candidates to inform their abundance, enabling reliable forecast for gravitational wave and multi-messenger detections. The program will also be valuable for characterizing long-term AGN photometric and spectroscopic variability, advancing the general understanding of accretion disk physics, effects of accretion disk winds, and SMBH feeding and feedback. This award addresses and advances the goals of the Windows on the Universe Big Idea.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.

超大型黑洞（SMBHS）比太阳的数百万到数十亿倍。它们通常在大型星系中心发现。当星系合并时，它们的中央黑洞也应该结合在一起。二进制SMBH是多通态师天文学的理想目标，但由于观察到的局限性，没有对二进制SMBH进行强有力的检测。该程序将系统地识别并表征二进制SMBH。它将提供一个强大的二进制SMBH候选数据库，并为其丰度和进化提供限制。它将为重力波检测提供可靠的预测。研究团队还将制定专门的外展计划，以促进科学多样性。该程序将结合高质量的长期光度法和光谱概要调查，以系统地识别和表征亚pc二进制SMBH。首先，它旨在使用活性银河核（AGN）宽发射线的长期径向速度变化来鉴定亚pc二元SMBH。它将检验以下假设：时间漂移代表多普勒从二元轨道运动中移动。其次，它将从周期性变化的AGN中识别Milli-PC二进制SMBH。它将严重区分周期性和随机变异性。结合后续观察，它将提供一个鲁棒的子PC二进制SMBH候选者的数据库，以告知其丰度，从而为重力波和多通信器检测提供可靠的预测。该程序也将对于表征长期AGN光度法和光谱变异性，推动对积聚磁盘物理学的一般理解，积聚盘风的影响以及SMBH喂食和反馈的一般理解也将很有价值。 该奖项旨在解决宇宙大意上窗户的目标。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响审查标准，被认为值得通过评估来获得支持。

项目成果

The SDSS-V Black Hole Mapper Reverberation Mapping Project: Unusual Broad-line Variability in a Luminous Quasar

• DOI: 10.3847/1538-4357/acbfb7
• 发表时间: 2023-01
• 期刊: The Astrophysical Journal
• 作者: Logan B. Fries;J. Trump;M. Davis;C. Grier;Yue Shen;S. Anderson;T. Dwelly;M. Eracleous;Y. Homayouni;K. Horne;M. Krumpe;S. Morrison;J. Runnoe;B. Trakhtenbrot;R. Assef;W. Brandt;J. Brownstein;C. Dabbieri;A. Fix;Gloria Fonseca Alvarez;S. Frederick;P. Hall;A. Koekemoer;J. I. Li;Xin Liu;M. Martínez–Aldama;C. Ricci;D. Schneider;Hugh W. Sharp;M. Temple;Qian Yang;Grisha Zeltyn;D. Bizyaev

A Transient “Changing-look” Active Galactic Nucleus Resolved on Month Timescales from First-year Sloan Digital Sky Survey V Data

• DOI: 10.3847/2041-8213/ac9a47
• 发表时间: 2022-10
• 期刊: The Astrophysical Journal Letters
• 作者: Grisha Zeltyn;B. Trakhtenbrot;M. Eracleous;J. Runnoe;J. Trump;J. Stern;Yue Shen;Lorena Hernández-García;F. Bauer;Qian Yang;T. Dwelly;C. Ricci;P. Green;S. Anderson;R. Assef;M. Guolo;C. MacLeod;M. Davis;Logan B. Fries;S. Gezari;N. Grogin;D. Homan;A. Koekemoer;M. Krumpe;S. LaMassa;Xin Liu;A. Merloni;M. Martínez–Aldama;D. Schneider;M. Temple;J. Brownstein;H. Ibarra-Medel;J. Burke;C. Pellegrino;J. Kollmeier

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