English
Related papers

Related papers: Suppression of stellar tidal disruption rates by a…

200 papers

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…

Cosmology and Nongalactic Astrophysics · Physics 2012-01-26 Michael Kesden

Tidal disruption events occur rarely in any individual galaxy. Over the last decade, however, time-domain surveys have begun to accumulate statistical samples of these flares. What dynamical processes are responsible for feeding stars to…

High Energy Astrophysical Phenomena · Physics 2020-04-01 Nicholas C. Stone , Eugene Vasiliev , Michael Kesden , Elena M. Rossi , Hagai B. Perets , Pau Amaro-Seoane

The rate of observable tidal disruption events (TDEs) by the most massive black holes (BHs) is suppressed due to direct capture of stars by the event horizon. This suppression effect depends on the shape of the horizon and holds the promise…

Astrophysics of Galaxies · Physics 2023-11-15 Hao-Tse Huang , Wenbin Lu

Tidal Disruption of stars by super massive central black holes from dense star clusters is modeled by high-accuracy direct $N$-body simulation. The time evolution of the stellar tidal disruption rate, the effect of tidal disruption on the…

Astrophysics of Galaxies · Physics 2015-06-22 Shiyan Zhong , Peter Berczik , Rainer Spurzem

We consider the problem of tidal disruption of stars in the centre of a galaxy containing a supermassive binary black hole with unequal masses. We assume that over the separation distance between the black holes the gravitational potential…

Astrophysics · Physics 2009-11-10 P. B. Ivanov , A. G. Polnarev , P. Saha

The occurrence rate of tidal disruption events (TDEs) by survey missions depend on the black hole mass function of the galaxies, properties of the stellar cusp and mass of the central black hole. Using a power law density profile with…

High Energy Astrophysical Phenomena · Physics 2020-04-08 T. Mageshwaran , A. Mangalam

We derive the rates of capture, Ndot, of main sequence turn off stars by the central massive black hole in a sample of galaxies from Magorrian et al. 1998. The disruption rates are smaller than previously believed with Ndot ~ 10^-4 - 10^-7…

Astrophysics · Physics 2009-10-31 D. Syer , A. Ulmer

We compute rates of tidal disruption of stars by supermassive black holes in galactic nuclei, using downwardly-revised black hole masses from the M-sigma relation. In galaxies with steep nuclear density profiles, which dominate the overall…

Astrophysics · Physics 2009-11-07 Jianxiang Wang , David Merritt

The tidal disruption of a star by a supermassive black hole is expected to lead to a short bright flare followed by an extended period of low-level emission. Existing models of the late-time accretion of the stellar debris via a thin disk…

Astrophysics · Physics 2009-11-07 Kristen Menou , Eliot Quataert

The tidal disruption of a star by a massive black hole is expected to yield a luminous flare of thermal emission. About two dozen of these stellar tidal disruption flares (TDFs) may have been detected in optical transient surveys. However,…

High Energy Astrophysical Phenomena · Physics 2018-01-11 Sjoert van Velzen

A star orbiting a supermassive black hole can be tidally disrupted if the black hole's gravitational tidal field exceeds the star's self gravity at pericenter. Some of this stellar tidal debris can become gravitationally bound to the black…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-20 Michael Kesden

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…

Astrophysics of Galaxies · Physics 2016-11-09 Kirill Lezhnin , Eugene Vasiliev

Tidal Disruption of stars by supermassive central black holes from dense rotating star clusters is modelled by high-accuracy direct N-body simulation. As in a previous paper on spherical star clusters we study the time evolution of the…

Astrophysics of Galaxies · Physics 2015-09-23 Shiyan Zhong , Peter Berczik , Rainer Spurzem

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Nicholas Stone , 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

There is strong evidence for some kind of massive dark object in the centres of many galaxy bulges. The detection of flares from tidally disrupted stars could confirm that these objects are black holes (BHs). Here we present calculations of…

Astrophysics · Physics 2011-05-05 John Magorrian , Scott Tremaine

A detailed model of the tidal disruption events (TDEs) has been constructed using stellar dynamical and gas dynamical inputs that include black hole (BH) mass $M_{\bullet}$, specific orbital energy $E$ and angular momentum $J$, star mass…

Astrophysics of Galaxies · Physics 2015-12-09 T. Mageshwaran , A. Mangalam

We study tidal disruption events of rotating stars by a supermassive black hole in a galactic nucleus by using a smoothed-particle hydrodynamics (SPH) code. We compare mass infall rates of tidal-disruption debris of a non-rotating and of a…

High Energy Astrophysical Phenomena · Physics 2019-05-28 Kazuki Kagaya , Shin'ichirou Yoshida , Ataru Tanikawa

The disruption of stars by supermassive black holes has been linked to more than a dozen flares in the cores of galaxies out to redshift $z \sim 0.4$. Modeling these flares properly requires a prediction of the rate of mass return to the…

High Energy Astrophysical Phenomena · Physics 2015-06-05 James Guillochon , Enrico Ramirez-Ruiz

Stars can be tidally destroyed or swallowed by supermassive black hole binaries. Using a large number of accurate few-body simulations, we investigate the enhancement and suppression of full and partial disruption and direct capture events…

High Energy Astrophysical Phenomena · Physics 2022-08-03 Taeho Ryu , Alessandro A. Trani , Nathan W. C. Leigh
‹ Prev 1 2 3 10 Next ›