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Related papers: Partial tidal disruptions of spinning eccentric wh…

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Intermediate-mass black holes (IMBHs) are the missing link between stellar-mass and supermassive black holes, widely believed to reside in at least some dense star clusters, but not yet observed directly. Tidal disruptions of white dwarfs…

High Energy Astrophysical Phenomena · Physics 2023-08-15 Claire S. Ye , Giacomo Fragione , Rosalba Perna

Fallback rate of debris after a partial tidal disruption event of a star with an intermediate mass black hole (IMBH) might provide important signatures of such black holes, compared to supermassive ones. Here using smoothed particle…

High Energy Astrophysical Phenomena · Physics 2023-10-06 Debojyoti Garain , Tapobrata Sarkar

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…

High Energy Astrophysical Phenomena · Physics 2024-03-05 Xiao-Jun Wu , Ye-Fei Yuan , Yan Luo , Wenbin Lin

Finding intermediate-mass black holes (IMBHs) and measuring their masses and spins are key to understanding massive black hole formation. White dwarf (WD)-IMBH binaries provide a unique probe because they emit both electromagnetic radiation…

High Energy Astrophysical Phenomena · Physics 2026-03-02 Yang Yang , Leif Lui , Alejandro Torres-Orjuela , Xian Chen

We perform a suite of numerical simulations of tidal disruption events, using smoothed particle hydrodynamics, for a close binary system consisting of two low-mass white dwarfs, and an intermediate mass non-spinning black hole. The binary…

High Energy Astrophysical Phenomena · Physics 2026-04-30 Aryabrat Mahapatra , Adarsh Pandey , Pritam Banerjee , Tapobrata Sarkar

We calculate the emission line spectrum produced by the debris released when a white dwarf (WD) is tidally disrupted by an intermediate-mass black hole (IMBH; $M\sim 10^{2}-10^{5}\msun$) and we explore the possibility of using the emission…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Drew Clausen , Michael Eracleous

We present a qualitative picture of prompt emission from tidal disruptions of white dwarfs (WD) by intermediate mass black holes (IMBH). The smaller size of an IMBH compared to a supermassive black hole and a smaller tidal radius of a WD…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Roman V. Shcherbakov , Asaf Pe'er , Christopher S. Reynolds , Roland Haas , Tanja Bode , Pablo Laguna

Intermediate-mass black holes (IMBH) are expected to exist in globular clusters (GCs) and compact stellar systems (CSS) in general, but none have been conclusively detected. Tidal disruption events (TDEs), where a star is tidally disrupted…

Astrophysics of Galaxies · Physics 2025-06-04 Richard T. Pomeroy , Mark A. Norris

There has been suggestive evidence of intermediate-mass black holes (IMBHs; 10^{3-5} M_sun) existing in some globular clusters (GCs) and dwarf galaxies, but IMBHs as a population remain elusive. As a main-sequence star passes too close by…

High Energy Astrophysical Phenomena · Physics 2018-10-30 Jin-Hong Chen , Rong-Feng Shen

Suggestive evidence has accumulated that intermediate mass black holes (IMBH) exist in some globular clusters. As stars diffuse in the cluster, some will inevitable wander sufficiently close to the hole that they suffer tidal disruption. An…

Astrophysics · Physics 2009-11-13 S. Rosswog , E. Ramirez-Ruiz , W. R. Hix

We discuss the properties of stellar mass black hole (BH) mergers induced by tidal encounters with a massive BH at galactic centres or potentially in dense star clusters. The tidal disruption of stellar binaries by a massive BH is known to…

High Energy Astrophysical Phenomena · Physics 2019-05-31 Joseph John Fernández , Shiho Kobayashi

Intermediate-mass black holes (IMBHs) are believed to be the missing link between the supermassive black holes (BHs) found at the centers of massive galaxies and BHs formed through stellar core collapse. One of the proposed mechanisms for…

Astrophysics of Galaxies · Physics 2024-03-14 Rujuta A. Purohit , Giacomo Fragione , Frederic A. Rasio , Grayson C. Petter , Ryan C. Hickox

When a stellar binary encounters a spinning black hole, interesting phenomena might result due to the mutual interaction between the binary spin, orbital angular momentum and the black hole spin. Here we consider such encounters between an…

High Energy Astrophysical Phenomena · Physics 2026-01-09 Aryabrat Mahapatra , Adarsh Pandey , Pritam Banerjee , Tapobrata Sarkar

We study the stellar dynamics of the first star clusters after intermediate-mass black holes (IMBHs) are formed via runaway stellar collisions. We use the outputs of cosmological simulations of Sakurai et al. (2017) to follow the star…

Astrophysics of Galaxies · Physics 2019-01-31 Yuya Sakurai , Naoki Yoshida , Michiko S. Fujii

We present numerical relativity results of tidal disruptions of white dwarfs from ultra-close encounters with a spinning, intermediate mass black hole. These encounters require a full general relativistic treatment of gravity. We show that…

High Energy Astrophysical Phenomena · Physics 2012-05-28 Roland Haas , Roman V. Shcherbakov , Tanja Bode , Pablo Laguna

The study of intermediate-mass black holes (IMBHs) is a young and promising field of research. Formed by runaway collisions of massive stars in young and dense stellar clusters, intermediate-mass black holes could still be present in the…

We present the results of a suite of numerical simulations using smoothed particle hydrodynamics to study partial tidal disruption events (TDEs) of white dwarfs (WDs) in off-equatorial orbits in intermediate mass spinning (Kerr) black hole…

General Relativity and Quantum Cosmology · Physics 2026-01-07 Aryabrat Mahapatra , Adarsh Pandey , Debojyoti Garain , Tapobrata Sarkar

Intermediate mass black holes (IMBHs) may be the link between stellar mass holes and the supermassive variety in the nuclei of galaxies, and globular clusters (GCs) may be one of the most promising environments for their formation. Here we…

High Energy Astrophysical Phenomena · Physics 2023-12-20 Vivian L. Tang , Piero Madau , Elisa Bortolas , Eric W. Peng

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

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…

High Energy Astrophysical Phenomena · Physics 2025-12-09 Xinyu Li , Houyi Sun , Yuan-Chuan Zou , Huan Yang
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