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The tidal disruption of a star by a massive black hole (MBH) is thought to produce a transient luminous event. Such tidal disruption events (TDEs) may play an important role in the detection and characterization of MBHs and probe the…

Astrophysics of Galaxies · Physics 2016-06-08 Danor Aharon , Alessandra Mastrobuono Battisti , Hagai B. Perets

We describe a three-dimensional simulation of a $1 M_{\odot}$ solar-type star approaching a $10^{6} M_{\odot}$ black hole on a parabolic orbit with a pericenter distance well within the tidal radius. While falling towards the black hole,…

Astrophysics · Physics 2015-05-13 James Guillochon , Enrico Ramirez-Ruiz , Stephan Rosswog , Daniel Kasen

We present an online, open and comprehensive template library of gravitational waveforms produced during the tidal disruptions of stars by massive black holes, spanning a broad space of parameters. We build this library thanks to a new…

High Energy Astrophysical Phenomena · Physics 2021-12-15 Martina Toscani , Giuseppe Lodato , Daniel J. Price , David Liptai

We study the tidal effects of a Kerr black hole on a neutron star in black hole-neutron star binary systems using a semi-analytical approach which describes the neutron star as a deformable ellipsoid. Relativistic effects on the neutron…

Astrophysics · Physics 2010-03-18 V. Ferrari , L. Gualtieri , F. Pannarale

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

Solitary stars that wander too close to their galactic centres can become tidally disrupted, if the tidal forces due to the supermassive black hole (SMBH) residing there overcome the self-gravity of the star. If the star is only partially…

High Energy Astrophysical Phenomena · Physics 2015-03-23 Emanuel Gafton , Emilio Tejeda , James Guillochon , Oleg Korobkin , Stephan Rosswog

We study accretion processes for tidally disrupted stars approaching supermassive black holes on bound orbits, by performing three dimensional Smoothed Particle Hydrodynamics simulations with a pseudo-Newtonian potential. We find that there…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Kimitake Hayasaki , Nicholas Stone , Abraham Loeb

We examine the consequences of a model in which relativistic jets can be triggered in quiescent massive black holes when a geometrically thick and hot accretion disk forms as a result of the tidal disruption of a star. To estimate the…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Fabio De Colle , James Guillochon , Jill Naiman , Enrico Ramirez-Ruiz

We present the STARS library, a grid of tidal disruption event (TDE) simulations interpolated to provide the mass fallback rate ($dM/dt$) to the black hole for a main-sequence star of any stellar mass, stellar age, and impact parameter. We…

High Energy Astrophysical Phenomena · Physics 2022-07-26 Jamie A. P. Law-Smith , David A. Coulter , James Guillochon , Brenna Mockler , Enrico Ramirez-Ruiz

We present a numerical investigation of the tidal disruption of white dwarfs by moderately massive black holes, with particular reference to the centers of dwarf galaxies and globular clusters. Special attention is given to the fate of…

Astrophysics · Physics 2014-11-18 S. Rosswog , E. Ramirez-Ruiz , R. Hix

We investigate misaligned accretion discs formed after tidal disruption events that occur when a star encounters a supermassive black hole. We employ the linear theory of warped accretion discs to find the shape of a disc for which the…

Astrophysics of Galaxies · Physics 2016-08-31 M. Xiang-Gruess , P. B. Ivanov , J. C. B. Papaloizou

When a star passes through the tidal disruption radius of a massive black hole (BH), it can be torn apart by the tidal force of the BH, known as the Tidal Disruption Event (TDE). Since the observed UV/optical luminosity significantly…

High Energy Astrophysical Phenomena · Physics 2025-01-17 Hengxiao Guo , Jingbo Sun , Shuang-Liang Li , Yan-Fei Jiang , Tinggui Wang , Defu Bu , Ning Jiang , Yanan Wang , Yuhan Yao , Rongfeng Shen , Minfeng Gu , Mouyuan Sun

When a star comes within a critical distance to a supermassive black hole (SMBH), immense tidal forces disrupt the star, resulting in a stream of debris that falls back onto the SMBH and powers a luminous flare. In this paper, we perform…

High Energy Astrophysical Phenomena · Physics 2015-06-15 James Guillochon , Haik Manukian , Enrico Ramirez-Ruiz

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

Motivated by detections of hypervelocity stars that may originate from the Galactic Center, we revist the problem of a binary disruption by a passage near a much more massive point mass. The six order of magnitude mass ratio between the…

High Energy Astrophysical Phenomena · Physics 2014-11-20 Re'em Sari , Shiho Kobayashi , Elena M. Rossi

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

Tidal disruption events occur when astrophysical objects are destroyed by black holes due to strong tidal force effects. Tidal forces have been studied in a variety of black hole spacetimes, including Reissner-Nordstr\"om and Kerr…

General Relativity and Quantum Cosmology · Physics 2024-03-05 Eduardo Albacete , Maurício Richartz

Tidal Disruption Events (TDEs) are processes where stars are torn apart by the strong gravitational force near to a massive or supermassive black hole. If a jet is launched in such a process, particle acceleration may take place in internal…

High Energy Astrophysical Phenomena · Physics 2019-07-15 Daniel Biehl , Denise Boncioli , Cecilia Lunardini , Walter Winter

Tidal disruption of stars by massive black holes produce transient accretion flows that flare at optical, UV, and X-ray wavelengths. At late times, these accretion flows may launch relativistic jets that can be detected through the…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Geoffrey C. Bower

Tidal disruption events (TDEs) occur when a star is disrupted by the tidal forces of a supermassive black hole, and these events produce bright multi-wavelength flares. Polarimetric measurements of TDEs allow us to disentangle the geometry…

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