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Recurring tidal disruption events a decade apart in IRAS F01004-2237

文献类型：期刊论文

作者Sun, Luming13; Jiang, Ning11,12; Dou, Liming10; Shu, Xinwen13; Zhu, Jiazheng11,12; Dong, Subo7,8,9; Buckley, David6; Cenko, S. Bradley5; Fan, Xiaohui4; Gromadzki, Mariusz3
刊名ASTRONOMY & ASTROPHYSICS
出版日期2024-12-20
卷号692
关键词accretion, accretion disks black hole physics galaxies: nuclei galaxies: nuclei
ISSN号0004-6361
DOI10.1051/0004-6361/202452380
产权排序第13完成单位
文献子类Article
英文摘要Context. In theory, recurring tidal disruption events (TDEs) may occur when a close stellar binary encounters a supermassive black hole, if one star is captured and undergoes repeating partial TDEs, or if both stars are tidally disrupted (double TDEs). In addition, independent TDEs may be observed over decades in some special galaxies where the TDE rate is extremely high. Exploring the diversity of recurring TDEs and probing their natures with rich observational data helps us to understand these mechanisms. Aims. We report the discovery of a second optical flare that occurred in September 2021 in IRAS F01004-2237, where a first flare that occurred in 2010 had already been reported. We also present a detailed analysis of multi-band data. We aim to understand the nature of the flare and explore the possible causes of the recurring flares. Methods. We describe our analysis of the position of the flare, the multi-band light curves (LCs), the optical and ultraviolet (UV) spectra, and the X-ray LC and spectra. Results. The position of the flare coincides with the galaxy centre with a precision of 650 pc. The flare peaks in similar to 50 days with an absolute magnitude of similar to - 21 and fades in two years, roughly following L proportional to t(-5/3). It maintains a nearly constant blackbody temperature of similar to 22 000 K in later stages. Its optical and UV spectra show hydrogen and helium broad emission lines with full width at half maxima of 7000-21 000 km s(-1) and a He II/H alpha ratio of 0.3-2.3. It shows weak X-ray emission relative to UV emission, with X-ray flares lasting for < 2 - 3 weeks, during which the spectrum is soft with a power-law index of Gamma = 4.4(-1.3)(+1.4). These characters are consistent with a TDE, ruling out the possibilities of a supernova or an active galactic nucleus flare. With a TDE model, we infer a peak UV luminosity of 3.3 +/- 0.2 x 10(44) erg s(-1) and an energy budget of 4.5 +/- 0.2 x 10(51) erg. Conclusions. A TDE caused the flare that occurred in 2021. The two optical flares separated by 10.3 +/- 0.3 years can be interpreted as repeating partial TDEs, double TDEs, or two independent TDEs. Although no definitive conclusion can be drawn, the partial TDEs interpretation predicts a third flare around 2033, and the independent TDEs interpretation predicts a high TDE rate of greater than or similar to 10(-2) yr(-1) in F01004-2237, both of which can be tested by future observations.
学科主题天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
URL标识查看原文
出版地17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
WOS关键词ACTIVE GALACTIC NUCLEUS ; ULTRALUMINOUS INFRARED GALAXIES ; SUPERMASSIVE BLACK-HOLE ; AGN-DRIVEN OUTFLOWS ; X-RAY OUTBURST ; HYDRODYNAMICAL SIMULATIONS ; BINARY DISRUPTION ; LIGHT CURVES ; TRANSIENT ; STARS
资助项目National Natural Science Foundation of China (NFSC); NFSC[12192221]; National Key R&D Program of China; Strategic Priority Research Program of the Chinese Academy of Sciences; National SKA program of China; Southern African Large Telescope (SALT); NSF NOIRLab; U.S. National Science Foundation(United States); National Research Council (Canada); Korea Astronomy and Space Science Institute (Republic of Korea); Agencia Nacional de Investigacion y Desarrollo (Chile); TAP member institutes; Ministerio de Ciencia, Tecnologia e Innovacion (Argentina); Ministerio da Ciencia, Tecnologia, Inovacoes e Comunicacoes (Brazil);
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001381254300001
出版者EDP SCIENCES S A
资助机构National Natural Science Foundation of China (NFSC) ; NFSC[12192221] ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National SKA program of China ; Southern African Large Telescope (SALT) ; NSF NOIRLab ; U.S. National Science Foundation(United States) ; National Research Council (Canada) ; Korea Astronomy and Space Science Institute (Republic of Korea) ; Agencia Nacional de Investigacion y Desarrollo (Chile) ; TAP member institutes ; Ministerio de Ciencia, Tecnologia e Innovacion (Argentina) ; Ministerio da Ciencia, Tecnologia, Inovacoes e Comunicacoes (Brazil) ; [12103002] ; [12073025] ; [2023YFA1608100] ; [XDB0550200] ; [2022SKA0130102] ; [2021-2-LSP-001] ; [2021/WK/01]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27909]  
专题云南天文台_丽江天文观测站（南方基地）
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.Key Laboratory for the Structure and Evolution of Celestial Objects, Yunnan Observatories, Kunming 650011, China
2.Max-Planck-Institut für extraterrestrische Physik, Gießenbachstraße 1, 85748 Garching, Germany;
3.Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland;
4.Steward Observatory, University of Arizona, 933 North Cherry Avenue, Rm. N204, Tucson, AZ 85721-0065, USA;
5.Astrophysics Science Division, NASA Goddard Space Flight Center, MC 661, Greenbelt, MD 20771, USA;
6.South African Astronomical Observatory, P.O. Box 9, Observatory, 7935 Cape Town, South Africa;
7.National Astronomical Observatories, Chinese Academy of Science, 20A Datun Road, Chaoyang District, Beijing 100101, China;
8.Kavli Institute of Astronomy and Astrophysics, Peking University, 5 Yiheyuan Road, Haidian District, Beijing 100871, China;
9.Department of Astronomy, School of Physics, Peking University, 5 Yiheyuan Road, Haidian District, Beijing 100871, China;
10.Center for Astrophysics, Guangzhou University, Guangzhou 510006, China;
推荐引用方式
GB/T 7714		 Sun, Luming,Jiang, Ning,Dou, Liming,et al. Recurring tidal disruption events a decade apart in IRAS F01004-2237[J]. ASTRONOMY & ASTROPHYSICS,2024,692.
APA Sun, Luming.,Jiang, Ning.,Dou, Liming.,Shu, Xinwen.,Zhu, Jiazheng.,...&Zhang, Xiaer.(2024).Recurring tidal disruption events a decade apart in IRAS F01004-2237.ASTRONOMY & ASTROPHYSICS,692.
MLA Sun, Luming,et al."Recurring tidal disruption events a decade apart in IRAS F01004-2237".ASTRONOMY & ASTROPHYSICS 692(2024).

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