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Tidal disruption events (TDEs) are bursts of electromagnetic energy released when supermassive black holes (SMBHs) at the centers of galaxies violently disrupt a star that passes too close. TDEs provide a new window to study accretion onto…

A star destroyed by a supermassive black hole (SMBH) in a tidal disruption event (TDE) enables the study of SMBHs. We propose that the distance within which a star is completely destroyed by a SMBH, defined $r_{\rm t, c}$, is accurately…

高能天体物理现象 · 物理学 2022-09-21 Eric R. Coughlin , Chris Nixon

Tidal disruption events (TDEs) take place when a star ventures too close to a supermassive black hole (SMBH) and becomes ruptured. One of the leading proposed physical mechanisms often invoked in the literature involves weak two-body…

星系天体物理 · 物理学 2023-06-16 Denyz Melchor , Brenna Mockler , Smadar Naoz , Sanaea Rose , Enrico Ramirez-Ruiz

In the centers of galaxies, stars that orbit supermassive black hole binaries (SMBHBs) can undergo tidal disruptions due to the Lidov-Kozai mechanism. Nevertheless, most previous researches have predominantly focused on full tidal…

高能天体物理现象 · 物理学 2024-03-05 Xiao-Jun Wu , Ye-Fei Yuan , Yan Luo , Wenbin Lin

We present the first simulations of the tidal disruption of stars with realistic structures and compositions by massive black holes (BHs). We build stars in the stellar evolution code MESA and simulate their disruption in the 3D…

高能天体物理现象 · 物理学 2019-10-17 Jamie Law-Smith , James Guillochon , Enrico Ramirez-Ruiz

Observations of luminous flares resulting from the possible tidal disruption of stars by supermassive black holes have raised a number of puzzles. Outstanding questions include the origin of the optical and ultraviolet (UV) flux, the…

高能天体物理现象 · 物理学 2016-08-17 Nathaniel Roth , Daniel Kasen , James Guillochon , Enrico Ramirez-Ruiz

We explore the rates of tidal disruption events (TDEs) of stars by supermassive black holes (SBHs) in galactic nuclei formed in mergers followed by a formation and coalescence of a binary SBH. Such systems initially have a deficit of stars…

星系天体物理 · 物理学 2016-11-09 Kirill Lezhnin , Eugene Vasiliev

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 star wandering close enough to a massive black hole (MBH) can be ripped apart by the tidal forces of the black hole. The advent of wide-field surveys at many wavelengths has quickly increased the number of tidal disruption events (TDEs)…

星系天体物理 · 物理学 2023-10-30 Odelia Teboul , Nicholas C. Stone , Jeremiah P. Ostriker

The recent discovery of three off-nuclear tidal disruption events (EP240222a, AT2024tvd, and AT2025abcr) - following the first such source, 3XMM J2150$-$05 - reveals a small but robust population of off-nuclear, or `wandering', black holes…

星系天体物理 · 物理学 2026-02-16 Muryel Guolo

The theoretical debris supply rate from a tidal disruption of stars can exceed about one hundred times of the Eddington accretion rate for a $10^{6-7}M_{\odot}$ supermassive black hole (SMBH). It is believed that a strong wind will be…

高能天体物理现象 · 物理学 2024-04-29 Yuehua Zhang , Qingwen Wu , Jiancheng Wu , Xinwu Cao , Weihua Lei

In the centers of dense star clusters, close encounters between stars and compact objects are likely to occur. We study tidal disruption events of main-sequence (MS) stars by stellar-mass black holes (termed $\mu$TDEs), which can shed light…

高能天体物理现象 · 物理学 2024-05-08 Pavan Vynatheya , Taeho Ryu , Ruediger Pakmor , Selma E. de Mink , Hagai B. Perets

Advances in time domain astronomy have produced a growing population of flares from galactic nuclei, including both tidal disruption events (TDEs) and flares in active galactic nuclei (AGN). Because TDEs are uncommon and AGN variability is…

高能天体物理现象 · 物理学 2024-05-30 Karamveer Kaur , Nicholas C. Stone

This work explores a scenario for micro-tidal disruption events (TDEs) triggered by close encounters between high-speed white dwarfs (WDs) and stellar-mass black holes (sBHs) in galactic centers. In this model, a WD orbiting the central…

高能天体物理现象 · 物理学 2025-12-09 Xinyu Li , Houyi Sun , Yuan-Chuan Zou , Huan Yang

Tidal disruption events (TDEs) occur when a star, passing too close to a massive black hole, is ripped apart by tidal forces. A less dramatic event occurs if the star orbits just outside the tidal radius, resulting in a mild stripping of…

高能天体物理现象 · 物理学 2015-03-02 Deborah Mainetti , Sergio Campana , Monica Colpi , Giuseppe Lodato , Paolo D'Avanzo , Phil Evans , Alberto Moretti

Massive black holes (BHs) at the centres of massive galaxies are ubiquitous. The population of BHs within dwarf galaxies, on the other hand, is evasive. Dwarf galaxies are thought to harbour BHs with proportionally small masses, including…

This is the second in a series of papers presenting the results of fully general relativistic simulations of stellar tidal disruptions in which the stars' initial states are realistic main-sequence models. We consider eight different…

星系天体物理 · 物理学 2020-01-14 Taeho Ryu , Julian Krolik , Tsvi Piran , Scott Noble

Dense young star clusters (YSCs) are ideal environments for dynamical interactions between stars and stellar mass black holes (BHs). In such dense environments, stars can undergo close encounters with BHs and fall within their tidal radius,…

高能天体物理现象 · 物理学 2026-03-18 Sara Rastello , Giuliano Iorio , Mark Gieles , Long Wang

We present a systematic search for tidal disruption events (TDEs) using radio data from the Variables and Slow Transients (VAST) Pilot Survey conducted using the Australian Square Kilometre Array Pathfinder (ASKAP). Historically, TDEs have…

The Galactic Center has been under intense scrutiny in the recent years thanks to the unprecedented missions aiming at measuring the gas and star dynamics near the supermassive black hole (SMBH) and at finding gravitational wave (GW)…

星系天体物理 · 物理学 2019-11-13 Re'em Sari , Giacomo Fragione
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