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This is the third sequel in a series discussing the discovery of various types of extragalactic transients with the {\it James Webb Space Telescope} in a narrow-field ($\sim 0.1$ deg$^2$), moderately deep ($m_{AB} \sim 27$ mag) survey. In…

高能天体物理现象 · 物理学 2021-03-17 E. Regos , J. Vinko , Z. Stermeczky

We study tidal disruption events (TDEs) and compact object inspirals in nuclear star clusters (NSCs) hosting a central supermassive black hole (SMBH), focusing on their role in SMBH growth. Using the STARDISK version of the direct N-body…

星系天体物理 · 物理学 2026-02-10 Philip Cho , Kai Wu , Francesco Flammini Dotti , Taras Panamarev , Rainer Spurzem

Tidal disruption events\,(TDEs) provide a valuable probe in studying the dynamics of stars in the nuclear environments of galaxies. Recent observations show that TDEs are strongly overrepresented in post-starburst or "green valley"…

高能天体物理现象 · 物理学 2024-01-01 Mengye Wang , Yiqiu Ma , Qingwen Wu , Ning Jiang

The tidal disruption event (TDE) AT2018fyk has unusual X-ray, UV, and optical light curves that decay over the first $\sim$600d, rebrighten, and decay again around 1200d. We explain this behavior as a one-off TDE associated with a massive…

高能天体物理现象 · 物理学 2024-07-30 S. Wen , P. G. Jonker , A. J. Levan , D. Li , N. C. Stone , A. I. Zabludoff , Z. Cao , T. Wevers , D. R. Pasham , C. Lewin , E. Kara

AT 2020mot is a typical UV/optical tidal disruption event (TDE) with no radio or X-ray signatures in a quiescent host. We find an i-band excess and re-brightening along the decline of the light curve which could be due to two consecutive…

A number of candidate repeating partial tidal disruption events (rpTDEs) have been reported in recent years. If these events are confirmed, the high fraction of observed rpTDEs among all tidal disruption events (TDEs) is in tension with…

高能天体物理现象 · 物理学 2026-04-09 Zhen Pan , Dong Lai

A tidal disruption event (TDE) takes place when a star passes near enough to a massive black hole to be disrupted. About half the star's matter is given elliptical trajectories with large apocenter distances, the other half is unbound. To…

高能天体物理现象 · 物理学 2015-04-08 Tsvi Piran , Gilad Svirski , Julian Krolik , Roseanne M. Cheng , Hotaka Shiokawa

Tidal disruption events (TDEs) offer a unique way to study dormant black holes. While the number of observed TDEs has grown thanks to the emergence of wide-field surveys in the past few decades, questions regarding the nature of the…

A starburst induced by a galaxy merger may create a relatively thin central stellar disk at radius $\le 100$pc. We calculate the rate of tidal disruption events (TDEs) by the inspiraling secondary supermassive black (SMBH) through the disk.…

高能天体物理现象 · 物理学 2019-12-11 Renyue Cen

Tidal disruption events (TDEs) observed in massive galaxies with inferred central black hole masses $M_h > 10^8 \ M_\odot$ are presumptive candidates for TDEs by lower mass secondaries in binary systems. We use hydrodynamic simulations to…

星系天体物理 · 物理学 2017-12-27 Eric R. Coughlin , Philip J. Armitage

Stars embedded in active galactic nucleus (AGN) disks or captured by them may scatter onto the supermassive black hole (SMBH), leading to a tidal disruption event (TDE). Using the moving-mesh hydrodynamics simulations with {\small AREPO},…

高能天体物理现象 · 物理学 2023-10-03 Taeho Ryu , Barry McKernan , Saavik Ford , Matteo Cantiello , Matthew Graham , Daniel Stern , Nathan W. C Leigh

Tidal disruption events (TDEs) around super massive black holes (SMBHs) are a potential laboratory to study super-Eddington accretion disks and sometimes result in powerful jets or outflows which may shine in the radio and sub millimeter…

高能天体物理现象 · 物理学 2022-11-30 Brandon Curd , Razieh Emami , Freek Roelofs , Richard Anantua

Observational consequences of the tidal disruption of stars by supermassive black holes (SMBHs) can enable us to discover quiescent SMBHs and constrain their mass function. Moreover, observing jetted TDEs (from previously non-active…

高能天体物理现象 · 物理学 2015-01-21 I. Donnarumma , E. M. Rossi , R. Fender , S. Komossa , Z. Paragi , S. Van Velzen , I. Prandoni

Stars can be either disrupted as tidal disruption events (TDEs) or swallowed as a whole by massive black holes (MBHs) at galactic centers when they approach sufficiently close to these MBHs. In this work, we investigate the correlations of…

高能天体物理现象 · 物理学 2023-08-02 Yunfeng Chen , Qingjuan Yu , Youjun Lu

A star crossing the tidal radius of a supermassive black hole will be spectacularly ripped apart with an accompanying burst of radiation. A few tens of such tidal disruption events (TDEs) have now been identified in the optical wavelengths,…

During the tidal disruption of a star by a massive black hole (BH) of mass MBH <~ 10^7 Msun, stellar debris falls back to the BH at a rate well above the Eddington rate. A fraction of this gas is subsequently blown away from the BH,…

宇宙学与河外天体物理 · 物理学 2015-05-19 Linda E. Strubbe , Eliot Quataert

Restricted by event horizon suppression, tidal disruption events (TDEs) provide a unique window into otherwise hidden supermassive black holes (SMBHs) at the lower end of the mass spectrum, allowing the connection between star formation and…

星系天体物理 · 物理学 2026-01-29 Paige Ramsden , Sean L. McGee , Matt Nicholl

An origin of the Optical/UV radiation from tidal disruption events (TDEs) has recently been discussed for different scenarios, but observational support is generally missing. In this Letter, we test applicability of the `Wind-Driven model'…

高能天体物理现象 · 物理学 2020-12-16 Kohki Uno , Keiichi Maeda

We report the discovery of tidal disruption event (TDE) WFST250820mmsw/AT2025wet by the 2.5-meter Wide Field Survey Telescope (WFST). It exhibits a blue nuclear flare throughout the observed evolution with a g-band peak magnitude ~22, which…

Tidal disruption events (TDEs) of giant stars by supermassive black holes (SMBH) differ significantly from those of main sequence ones. Most (all for SMBH of more than a~ few times 10^5 m_\odot) giant-TDEs are partial: only a fraction of…

高能天体物理现象 · 物理学 2024-11-26 Nuria Navarro Navarro , Tsvi Piran
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