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Related papers: Rates of Stellar Tidal Disruption

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[abbreviated] We consider the problem of tidal disruption of a star by a super-massive Kerr black hole. Using a numerically fast Lagrangian model of the tidally disrupted star we survey the parameter space of the problem and find the…

Astrophysics · Physics 2009-11-11 P. B. Ivanov , M. A. Chernyakova

Dwarf galaxies that come too close to larger galaxies suffer tidal disruption; the differential gravitational force between one side of the galaxy and the other serves to rip the stars from the dwarf galaxy so that they instead orbit the…

Astrophysics of Galaxies · Physics 2021-03-09 Heidi Jo Newberg

The rate of tidal disruption flares (TDFs) per mass of the disrupting black hole encodes information on the present-day mass function (PDMF) of stars in the clusters surrounding super massive black holes. We explore how the shape of the TDF…

High Energy Astrophysical Phenomena · Physics 2019-03-13 Daniel J. D'Orazio , Abraham Loeb , James Guillochon

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…

Astrophysics of Galaxies · Physics 2020-01-14 Taeho Ryu , Julian Krolik , Tsvi Piran , Scott Noble

Stars approaching supermassive black holes (SMBHs) in the centers of galaxies can be torn apart by strong tidal forces. We study the physics of tidal disruption by a binary SMBH as a function of the binary mass ratio $q = M_2 / M_1$ and…

High Energy Astrophysical Phenomena · Physics 2018-05-02 Siva Darbha , Eric R. Coughlin , Daniel Kasen , Eliot Quataert

Tidal disruption events (TDEs) result from stars being gravitationally-scattered into low angular momentum orbits around massive black holes. We show that the short lifetimes of massive Population III stars at high redshifts could…

High Energy Astrophysical Phenomena · Physics 2024-11-19 Thomas H. T. Wong , George M. Fuller

Close tidal interactions of stars with a central massive black hole (MBH) or with other stars in the high density cusp around it can affect a significant fraction of the stellar population within the MBH radius of influence. We consider…

Astrophysics · Physics 2007-05-23 Tal Alexander

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. In the first paper (Paper I), we…

High Energy Astrophysical Phenomena · Physics 2020-12-02 Taeho Ryu , Julian Krolik , Tsvi Piran , Scott C. Noble

Detections of the tidal disruption flares (TDFs) of stars by supermassive black holes (SMBHs) are rapidly accumulating as optical surveys improve. These detections may provide constraints on SMBH demographics, stellar dynamics, and stellar…

High Energy Astrophysical Phenomena · Physics 2021-04-07 Nathaniel Roth , Sjoert van Velzen , S. Bradley Cenko , R. F. Mushotzky

The discovery that the Galactic centre emits flares at various wavelengths represents a puzzle concerning their origin, but at the same time it is a relevant opportunity to investigate the environment of the nearest super-massive black…

High Energy Astrophysical Phenomena · Physics 2012-04-17 A. Cadez , U. Kostic , M. Calvani

The disruption of a star by a supermassive black hole generates a sudden bright flare. Previous studies have focused on the disruption by single black holes, for which the fallback rate decays as~$\propto t^{-5/3}$. In this paper, we…

High Energy Astrophysical Phenomena · Physics 2018-03-21 Quentin Vigneron , Giuseppe Lodato , Alessio Guidarelli

Tidal disruption events (TDEs) are a class of transients that occur when a star is destroyed by the tides of a massive black hole (MBH). Their rates encode valuable MBH demographic information, but this can only be extracted if accurate TDE…

Astrophysics of Galaxies · Physics 2024-12-31 Christian H. Hannah , Nicholas C. Stone , Anil C. Seth , Sjoert van Velzen

The tidal disruption of a star by a supermassive black hole provides us with a rare glimpse of these otherwise dormant beasts. It has long been predicted that the disruption will be accompanied by a thermal `flare', powered by the accretion…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Dimitrios Giannios , Brian D. Metzger

We have carried out general relativistic particle simulations of stars tidally disrupted by massive black holes. When a star is disrupted in a bound orbit with moderate eccentricity instead of a parabolic orbit, the temporal behavior of the…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Lixin Dai , Andres Escala , Paolo Coppi

Tidal disruption events of stars by supermassive black holes have so far been discovered months to years after the fact. In this paper we explore the short, faint and hard burst of radiation is emitted at maximum compression, as a result of…

High Energy Astrophysical Phenomena · Physics 2018-10-24 Almog Yalinewich , James Guillochon , Re'em Sari , Abraham Loeb

We examine whether disrupted binary stars can fuel black hole growth. In this mechanism, tidal disruption produces a single hypervelocity star (HVS) ejected at high velocity and a former companion star bound to the black hole. After a…

Astrophysics of Galaxies · Physics 2015-06-04 Benjamin C. Bromley , Scott J. Kenyon , Margaret J. Geller , Warren R. Brown

After the tidal disruption of a star by a massive black hole, disrupted stellar debris can fall back to the hole at a rate significantly exceeding its Eddington limit. To understand how black hole mass affects the duration of…

High Energy Astrophysical Phenomena · Physics 2018-07-09 Samantha Wu , Eric R. Coughlin , Chris Nixon

In this paper, the third in this series, we continue our study of tidal disruption events of main-sequence stars by a non-spinning $10^{6}~\rm{M}_\odot$ supermassive black hole. Here we focus on the stellar mass dependence of the outcomes…

High Energy Astrophysical Phenomena · Physics 2020-12-02 Taeho Ryu , Julian Krolik , Tsvi Piran , Scott C. Noble

A tidal disruption event (TDE) occurs when the gravitational field of a supermassive black hole (SMBH) destroys a star. For TDEs in which the star enters deep within the tidal radius, such that the ratio of the tidal radius to the…

High Energy Astrophysical Phenomena · Physics 2022-11-16 Suman Kumar Kundu , Eric R. Coughlin , C. J. Nixon

Tidal disruption events, which occur when a star is shredded by the tidal field of a supermassive black hole, provide a means of fueling black hole accretion. Here we show, using a combination of three body orbit integrations and…

Astrophysics of Galaxies · Physics 2017-08-30 Eric R. Coughlin , Philip J. Armitage
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