KMS National Astronomical Observatories, CAS
| Accretion-modified Stars in Accretion Disks of Active Galactic Nuclei: Gravitational-wave Bursts and Electromagnetic Counterparts from Merging Stellar Black Hole Binaries | |
| Wang, Jian-Min1,2,3; Liu, Jun-Rong1,2; Ho, Luis C.4,5; Li, Yan-Rong1; Du, Pu1 | |
| 2021-08-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL LETTERS
 |
| ISSN | 2041-8205 |
| Volume | 916Issue:2Pages:11 |
| Abstract | The recent advanced LIGO/Virgo detections of gravitational waves (GWs) from stellar binary black hole (BBH) mergers, in particular GW190521, which is potentially associated with a quasar, have stimulated renewed interest in active galactic nuclei as factories of merging BBHs. Compact objects evolving from massive stars are unavoidably enshrouded by a massive envelope to form accretion-modified stars (AMSs) in the dense gaseous environment of a supermassive black hole (SMBH) accretion disk. We show that most AMSs form binaries due to gravitational interaction with each other during radial migration in the SMBH disk, forming BBHs inside the AMS. When a BBH is born, its orbit is initially governed by the tidal torque of the SMBH. Bondi accretion onto a BBH at a hyper-Eddington rate naturally develops and then controls the evolution of its orbits. We find that Bondi accretion leads to efficient removal of the orbital angular momentum of the binary, whose final merger produces a GW burst. Meanwhile, the Blandford-Znajek mechanism pumps the spin energy of the merged BH to produce an electromagnetic counterpart (EMC). Moreover, hyper-Eddington accretion onto the BBH develops powerful outflows and triggers a Bondi explosion, which manifests itself as an EMC of the GW burst, depending on the viscosity of the accretion flow. Thermal emission from the Bondi sphere appears as one of the EMCs. The BBHs radiate GWs with frequencies of similar to 10(2) Hz, which are accessible to LIGO. |
| Funding Organization | National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; China Manned Space Project ; China Manned Space Project ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; China Manned Space Project ; China Manned Space Project ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; China Manned Space Project ; China Manned Space Project ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; China Manned Space Project ; China Manned Space Project |
| DOI | 10.3847/2041-8213/ac0b46 |
| WOS Keyword | GAMMA-RAY BURST ; NEUTRON-STAR ; EVOLUTION ; MASS ; METALLICITY ; MERGERS ; ENERGY ; DISCS ; JETS ; ACCELERATION |
| Language | 英语 |
| Funding Project | National Key R&D Program of China[2016YFA0400701] ; National Key R&D Program of China[2016YFA0400702] ; National Key R&D Program of China[2020YFC2201400] ; NSFC[NSFC-11991050] ; NSFC[NSFC-11991054] ; NSFC[NSFC-11833008] ; NSFC[NSFC-11721303] ; NSFC[NSFC-11991052] ; NSFC[NSFC-11690024] ; NSFC[QYZDJ-SSW-SLH007] ; NSFC[XDB23010400] ; International Partnership Program of the Chinese Academy of Sciences[113111KYSB20200014] ; China Manned Space Project[CMS-CSST-2021-B11] |
| Funding Organization | National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; China Manned Space Project ; China Manned Space Project ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; China Manned Space Project ; China Manned Space Project ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; China Manned Space Project ; China Manned Space Project ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; China Manned Space Project ; China Manned Space Project |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000679534800001 |
| Publisher | IOP PUBLISHING LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.bao.ac.cn/handle/114a11/76224 |
| Collection | 中国科学院国家天文台 |
| Corresponding Author | Wang, Jian-Min |
| Affiliation | 1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Natl Astron Observ China, 20A Datun Rd, Beijing 100020, Peoples R China 4.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 5.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Jian-Min,Liu, Jun-Rong,Ho, Luis C.,et al. Accretion-modified Stars in Accretion Disks of Active Galactic Nuclei: Gravitational-wave Bursts and Electromagnetic Counterparts from Merging Stellar Black Hole Binaries[J]. ASTROPHYSICAL JOURNAL LETTERS,2021,916(2):11. |
| APA | Wang, Jian-Min,Liu, Jun-Rong,Ho, Luis C.,Li, Yan-Rong,&Du, Pu.(2021).Accretion-modified Stars in Accretion Disks of Active Galactic Nuclei: Gravitational-wave Bursts and Electromagnetic Counterparts from Merging Stellar Black Hole Binaries.ASTROPHYSICAL JOURNAL LETTERS,916(2),11. |
| MLA | Wang, Jian-Min,et al."Accretion-modified Stars in Accretion Disks of Active Galactic Nuclei: Gravitational-wave Bursts and Electromagnetic Counterparts from Merging Stellar Black Hole Binaries".ASTROPHYSICAL JOURNAL LETTERS 916.2(2021):11. |
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