When two black holes merge, the asymmetric emission of gravitational waves provides an impulse to the merged system; this gravitational wave recoil velocity can be up to 4000 km s$^{-1}$, easily fast enough for the black hole to escape its host galaxy. We combine semi-analytic modeling with cosmological zoom-in simulations of a Milky Way-type galaxy to investigate the role of black hole spin and gravitational recoil in the epoch of massive black hole seeding. We sample four different spin distributions (random, aligned, anti-aligned, and zero spin), and compare the resulting merger rates, occupation fractions, and MBH-host relations with what is expected by excluding the effect of recoil. The inclusion of gravitational recoil and MBH spin in the assembly of MBH seeds can reduce the final $z=5$ MBH mass by up to an order of magnitude. The MBH occupation fraction, however, remains effectively unaltered due to episodes of black hole formation following a recoil event. While electromagnetic detections of these events are unlikely, LISA is ideally suited to detect gravitational wave signals from such events.
Supermassive Black Hole Assembly from Heavy Seeds with Dynamical Friction in the BRAHMA Simulations: Implications for JWST, LISA, and the Local Universe
University of Virginia(弗吉尼亚大学);Virginia Institute for Theoretical Astronomy, University of Virginia(弗吉尼亚大学理论天体物理研究所);University of California Berkeley(加州大学伯克利分校);Center for Computational Astrophysics, Flatiron institute(西蒙斯基金会平顿计算天体物理中心);Leibniz Institute for Astrophysics Potsdam (AIP)(波茨坦阿基米德天体物理研究所);Yale University(耶鲁大学);Black Hole Initiative, Harvard University(哈佛大学黑洞倡议计划)
SEEDZ: Rapid Galaxy Assembly as a Pathway to Supermassive Stars, Dense Stellar Environments and Massive Black Hole Seeds
Maynooth University(梅努斯大学);Center for Astrophysics, Harvard and Smithsonian(哈佛-史密森尼天体物理中心);Max-Planck-Institut für Astrophysik(马克斯·普朗克天体物理学研究所);University of Edinburgh(爱丁堡大学);University College Cork(科克大学);University of Cambridge(剑桥大学);Universität Heidelberg(海德堡大学);Georgia Institute of Technology(佐治亚理工学院);University of Hertfordshire(赫特福德大学)
Hypercompact stellar clusters: morphological renditions and spectro-photometric models
数值相对论预言,黑洞双星的合并会导致新形成的黑洞反冲,这种反冲的证据已经在恒星质量黑洞合并期间观察到的引力波中找到。超(超)大质量黑洞被认为存在于超紧凑星团(HCSC)中。对星系集合的模拟预测,银河系型星系的晕中应该存在数百个HCSC,银河系周围的一小部分HCSC的大小应该在现有调查的灵敏度范围内。然而,反冲黑洞和它们的HCSC仍在等待被安全地识别。通过最近和即将到来的数据库搜索的目标,我们改进了现有的文献,以产生现实的再现HCSC绑定到黑洞的质量为10 $^{5}$ M $_{\odot}$。包括人口的影响,蓝离散,我们模拟他们的出现在泛星和即将到来的$Euclid$图像。我们还得到了宽带光谱和相应的多波长的颜色,发现绝大多数的模拟HCSC落在由恒星和星系定义的颜色-颜色轨迹上,其光谱类似于巨大的K-型恒星。我们讨论的集群属性,搜索策略,和可能的闯入者。
A two-phase model of galaxy formation: IV. Seeding and growing supermassive black holes in dark matter halos
Nanjing University(南京大学);Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Ministry of Education(南京大学现代天文与天体物理教育部重点实验室);University of Science and Technology of China(中国科学技术大学);Department of Astronomy, University of Massachusetts, Amherst(美国马萨诸塞大学阿默斯特分校天文学系)
Hierarchical Black Hole Mergers at High Redshift: Predictions for LISA and LGWA from SEEDZ
Maynooth University(梅努斯大学);Max-Planck-Institut für Astrophysik(马克斯·普朗克天体物理学研究所);University of Hertfordshire(赫特福德大学);University of Edinburgh(爱丁堡大学);University College Cork(科克大学学院);Georgia Institute of Technology(佐治亚理工学院);Universität Heidelberg(海德堡大学);University of Cambridge(剑桥大学)
First results of AMBRA: Abundant Seeds and Early Mergers as a Pathway to the First Massive Black Holes
Carnegie Mellon University(卡内基梅隆大学);University of Virginia(弗吉尼亚大学);Virginia Institute for Theoretical Astronomy, University of Virginia(弗吉尼亚大学理论天体物理研究所);University of Florida(佛罗里达大学);University of California, Riverside(加州大学河滨分校);Harvard-Smithsonian Center for Astrophysics(哈佛-史密森尼天体物理中心)
Repopulating the pair-instability mass gap without sustained growth to massive IMBHs: the case of 47\,Tuc
Northwestern University(西北大学);NSF-Simons AI Institute for the Sky (SkAI)(NSF-Simons 天空人工智能研究所);Cardiff University(卡迪夫大学);Zentrum für Astronomie der Universität Heidelberg, Institut für Theoretische Astrophysik(海德堡大学天文学中心理论天体物理研究所);ICREA(加泰罗尼亚高级研究学院);Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB)(巴塞罗那大学宇宙科学研究所);Institut d’Estudis Espacials de Catalunya (IEEC)(加泰罗尼亚空间研究学院)
Implications of recoil kicks for black hole mergers from LIGO/Virgo catalogs
LIGO/Virgo合作的第一和第二个引力波瞬态目录包括$50$确认的合并事件,来自第一,第二和第三次观测运行的前半部分。我们计算反冲踢的分布赋予合并残余物和估计其保留概率在各种天体物理环境中的最大祖自旋($χ_{\rm max}$)的函数,假设LIGO/处女座二进制黑洞(BBH)合并催化的动态组装在一个致密的星团。我们发现,对于$0.1$,$0.3$,$0.5$,$0.8$的最大祖自旋,平均反冲分布分别在$150$ km s $^{-1}$,$250$ km s $^{-1}$,$350$ km s $^{-1}$,$600$ km s $^{-1}$附近达到峰值.只有逃逸速度为$\gtrsim 100$ km s $^{-1}$的环境,如在银河系核星团以及最大质量的球状星团和超级星团中发现的那样,才能有效地保留LIGO/室女座BBH人口的合并残余,即使是低祖先自旋($χ_{\rm max}=0.1$)。在高祖先自旋($χ_{\rm max}\gtrsim 0.5$)的情况下,只有质量最大的核星团才能保留合并产物。我们还发现,如果GW 170729,GW 190412,GW 190519和GW 190620的祖先是中等自旋($χ_{\rm max}\gtrsim 0.3$),而GW 190517的祖先是快速自旋($χ_{\rm max}\gtrsim 0.8$),则可以再现有效自…
ACORN I. Massive Black Hole Seeding and Tidal Disruption Events from Star Clusters in Cosmological Simulations
Carnegie Mellon University(卡内基梅隆大学);UCLA(加州大学洛杉矶分校);University of Virginia(弗吉尼亚大学);Universidade de Santiago de Compostela(圣地亚哥德孔波斯特拉大学);University of North Carolina at Chapel Hill(北卡罗来纳大学教堂山分校);Northwestern University(西北大学);University of Florida(佛罗里达大学)
Spectral Uniformity of Little Red Dots: A Natural Outcome of Coevolving Seed Black Holes and Nascent Starbursts
Kavli Institute for Astronomy and Astrophysics, Peking University(北京大学科维理天文与天体物理研究所);The Pennsylvania State University(宾夕法尼亚州立大学);Yukawa Institute for Theoretical Physics, Kyoto University(京都大学汤川理论物理研究所);Tohoku University(东北大学);Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), The University of Tokyo(东京大学宇宙物质前沿研究中心(Kavli IPMU))
From Dense Gas Clouds to Supermassive Black Hole Seeds: Hybrid Hydro/Direct $N$-body Simulations of Runaway Collision-driven Intermediate-mass Black Hole Formation
Seoul National University(首尔大学);Northwestern University(西北大学);Korea Institute of Science and Technology Information(韩国科学技术信息研究所)
The Road to Normalcy: Environment-Driven Evolutionary Pathways for Primordial Black Holes
University of Texas at Austin(德克萨斯大学奥斯汀分校);Weinberg Institute for Theoretical Physics, Texas Center for Cosmology and Astroparticle Physics, University of Texas at Austin(韦恩伯格理论物理研究所,德克萨斯宇宙学与天体粒子物理中心,德克萨斯大学奥斯汀分校);Cosmic Frontier Center, The University of Texas at Austin(宇宙前沿中心,德克萨斯大学奥斯汀分校);Institute of Astronomy, University of Cambridge(剑桥大学天文研究所);Universität Heidelberg, Zentrum fur Astronomie, Institut für Theoretische Astrophysik(海德堡大学,天文学中心,理论天体物理学研究所);Yale University(耶鲁大学);Black Hole Initiative, Harvard University(黑洞倡议项目,哈佛大学)
Hunting the first Cosmic Giants: formation and detectability of Direct Collapse Black Holes around high-redshift quasars
University of Edinburgh(爱丁堡大学);Università degli Studi dell’Insubria(因苏布利亚大学);INAF/Osservatorio Astronomico di Roma(罗马天文台国家 Astrophysics 研究所);INFN, Sezione di Milano-Bicocca(米兰比可卡大学 INFN 分部);Institute of Science and Technology Austria (ISTA)(奥地利科学与理工学院);Columbia University(哥伦比亚大学);Institut d’Astrophysique de Paris, Sorbonne Université(巴黎天体物理研究所,索邦大学)
Intermediate-mass black hole seeding in galactic nuclei from star cluster migration
Max-Planck-Institut für Astronomie(马克斯·普朗克天文学研究所);Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, CY Cergy Paris Université(巴黎天文台,巴黎文理研究大学,法国国家科学研究中心,索邦大学,巴黎西岱大学,塞吉-蓬图瓦兹大学);Fakultät für Physik und Astronomie, Universität Heidelberg(海德堡大学物理与天文学院);Gran Sasso Science Institute(格兰萨索科学研究所);INFN - Laboratori Nazionali del Gran Sasso(意大利国家核物理研究所-格兰萨索国家实验室);INAF - Osservatorio Astronomico di Roma(意大利国家天体物理研究所-罗马天文台)
Little Red Dots as a Transient Phase of Self-Interacting Dark Matter Assisted Black Hole Growth
University of Science and Technology of China(中国科学技术大学);Institute of High Energy Physics, Chinese Academy of Sciences(中国科学院高能物理研究所);University of Chinese Academy of Sciences(中国科学院大学)
Constraints on dynamically-formed massive black holes in Little Red Dots from X-ray non-detections
Sapienza Università di Roma(罗马智慧大学);United Arab Emirates University(阿拉伯联合酋长国大学);INFN – Sezione Roma1(意大利国家核物理研究所罗马一分部);Sapienza School for Advanced Studies(罗马智慧大学高等研究院);INAF – Osservatorio Astronomico di Roma(意大利国家天体物理研究所罗马天文台);New York University Abu Dhabi(纽约大学阿布扎比分校);Center for Astrophysics and Space Science (CASS), New York University Abu Dhabi(纽约大学阿布扎比分校天体物理学与空间科学中心);Universidad de Chile(智利大学);University of Heidelberg(海德堡大学)