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.

超大质量黑洞（SMBH）的质量是太阳的数百万到数十亿倍。它们通常位于大质量星系的中心。当星系合并时，它们中心的黑洞也应该联合收割机。双星SMBH是多信使天文学的理想目标，但由于观测的限制，还没有对双星SMBH进行可靠的探测。该计划将系统地识别和表征二进制SMBH。它将提供一个强大的二进制SMBH候选数据库，并提供对它们的丰度和演变的限制。它将为引力波探测提供可靠的预测。研究团队还将制定专门的推广计划，促进科学的多样性。该计划将结合联合收割机高质量的长期光度和光谱天气调查，系统地识别和表征亚pc二进制SMBH。首先，它的目的是确定sub-pc二进制SMBHs使用长期的径向速度变化的活动星系核（AGN）广泛的发射线。它将检验时间漂移代表双星轨道运动的多普勒频移的假设。第二，它将识别milli-pc的二进制SMBH周期性变化的活动星系核。它将严格区分周期性和随机变异性。结合后续观测，它将提供一个强大的sub-pc二进制SMBH候选者的数据库，以告知它们的丰度，从而能够可靠地预测引力波和多信使探测。该计划也将是有价值的长期活动星系核的光度和光谱变化的特点，推进吸积盘物理学的一般理解，吸积盘风的影响，SMBH喂养和反馈。 该奖项旨在解决和推进Windows on the Universe Big Idea的目标。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值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

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