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相关论文: Stellar Tidal Disruption Events in General Relativ…

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Rates of stellar tidal disruption events (TDEs) around supermassive black holes (SMBHs) have been extensively calculated using the loss cone theory, while theoretical work on TDE rates around intermediate-mass black holes (IMBHs) has been…

高能天体物理现象 · 物理学 2025-02-27 Janet N. Y. Chang , Lixin Dai , Hugo Pfister , Rudrani Kar Chowdhury , Priyamvada Natarajan

A supermassive black hole can disrupt a star when its tidal field exceeds the star's self-gravity, and can directly capture stars that cross its event horizon. For black holes with mass M > 10^7 solar masses, tidal disruption of…

宇宙学与河外天体物理 · 物理学 2012-01-26 Michael Kesden

We analyze stellar tidal disruption events as a possible observational signature of gravitational wave induced recoil of supermassive black holes. As a black hole wanders through its galaxy, it will tidally disrupt bound and unbound stars…

宇宙学与河外天体物理 · 物理学 2015-05-28 Nicholas Stone , Abraham Loeb

In this paper we derive the gravitational wave stochastic background from tidal disruption events (TDEs). We focus on both the signal emitted by main sequence stars disrupted by super-massive black holes (SMBHs) in galaxy nuclei, and on…

高能天体物理现象 · 物理学 2020-08-12 Martina Toscani , Elena M. Rossi , Giuseppe Lodato

We study how the matter dispersed when a supermassive black hole tidally disrupts a star joins an accretion flow. Combining a relativistic hydrodynamic simulation of the stellar disruption with a relativistic hydrodynamics simulation of the…

高能天体物理现象 · 物理学 2015-05-20 Hotaka Shiokawa , Julian H. Krolik , Roseanne M. Cheng , Tsvi Piran , Scott C. Noble

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) 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…

When a star is tidally disrupted by a supermassive black hole (BH), roughly half of its mass falls back to the BH at super-Eddington rates. Being tenuously gravitationally bound and unable to cool radiatively, only a small fraction f_in <<…

高能天体物理现象 · 物理学 2016-07-27 Brian D. Metzger , Nicholas C. Stone

When a star approaches a black hole closely, it may be pulled apart by gravitational forces in a tidal disruption event (TDE). The flares produced by TDEs are unique tracers of otherwise quiescent supermassive black holes (SMBHs) located at…

高能天体物理现象 · 物理学 2019-05-17 Felipe G. Goicovic , Volker Springel , Sebastian T. Ohlmann , Ruediger Pakmor

A star coming too close to a supermassive black hole gets disrupted by the tidal force of the compact object in a tidal disruption event, or TDE. Following this encounter, the debris evolves into an elongated stream, half of which coming…

高能天体物理现象 · 物理学 2020-05-13 Clément Bonnerot , Wenbin Lu

Tidal Disruption Events (TDEs) have long been hypothesized as valuable indicators of black holes, offering insight into their demographics and behaviour out to high redshift. TDEs have also enabled the discovery of a few Massive Black Holes…

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

The tidal disruption of stars in the vicinity of massive black holes is discussed in the context of $\Lambda$-gravity. The latter provides an explanation to the Hubble tension as a possible consequence of two Hubble flows, the local and…

广义相对论与量子宇宙学 · 物理学 2022-09-09 A. Stepanian , Sh. Khlghatyan , V. G. Gurzadyan

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

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

After the destruction of the star during a tidal disruption event (TDE), the cataclysmic encounter between a star and the supermassive black hole (SMBH) of a galaxy, approximately half of the original stellar debris falls back onto the hole…

高能天体物理现象 · 物理学 2014-01-15 Eric R. Coughlin , Mitchell C. Begelman

When a star is torn apart by the tidal forces of a supermassive black hole (a so-called TDE) a transient accretion episode is initiated and a hot, often X-ray bright, accretion disk is formed. Like any accretion flow this disk is turbulent,…

高能天体物理现象 · 物理学 2025-11-12 Andrew Mummery

Tidal disruption events (TDEs) offer a unique probe of supermassive black hole (SMBH) demographics, but their observed rates remain difficult to reconcile with standard single-SMBH models. In this work, we use simulations of SMBH binaries,…

星系天体物理 · 物理学 2025-07-14 Denyz Melchor , Smadar Naoz , Suvi Gezari , Brenna Mockler

Tidal disruption events (TDEs) in active galactic nuclei (AGNs) mark a regime where traditional vacuum models fail to capture the full dynamics, especially due to interaction between stellar debris and pre-existing accretion disks. We…

高能天体物理现象 · 物理学 2025-10-10 Minghao Zhang , Wenda Zhang , Hongping Deng , Hengxiao Guo , Jingbo Sun

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