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Once per 10,000-100,000 years, an unlucky star may experience a close encounter with a supermassive black hole (SMBH), partially or fully tearing apart the star in an exceedingly brief, bright interaction called a tidal disruption event…

Solar and Stellar Astrophysics · Physics 2025-11-07 Rewa Clark Bush , Samantha C. Wu , Rosa Wallace Everson , Ricardo Yarza , Ariadna Murguia-Berthier , Enrico Ramirez-Ruiz

Dense stellar clusters surround the supermassive black holes (SMBH) in galactic nuclei. Interactions within the cluster can alter the stellar orbits, occasionally driving a star into the SMBH's tidal radius where it becomes ruptured, or…

Astrophysics of Galaxies · Physics 2025-05-06 Sanaea C. Rose , Brenna Mockler

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

Stars passing too close to a super massive black hole (SMBH) can produce tidal disruption events (TDEs). Since the resulting stellar debris can produce an electromagnetic flare, TDEs are believed to probe the presence of single SMBHs in…

Astrophysics of Galaxies · Physics 2018-08-21 Giacomo Fragione , Nathan Leigh

A number of candidate repeating partial tidal disruption events (rpTDEs) have been reported in recent years. If these events are confirmed, the high fraction of observed rpTDEs among all tidal disruption events (TDEs) is in tension with…

High Energy Astrophysical Phenomena · Physics 2026-04-09 Zhen Pan , Dong Lai

In a galactic nucleus, a star on a low angular momentum orbit around the central massive black hole can be fully or partially disrupted by the black hole tidal field, lighting up the compact object via gas accretion. This phenomenon can…

High Energy Astrophysical Phenomena · Physics 2016-02-17 Deborah Mainetti , Alessandro Lupi , Sergio Campana , Monica Colpi

Tidal disruption events (TDEs) occur when a star crosses the tidal radius of a black hole (BH) and is ripped apart, providing a powerful way to probe dormant BHs over a wide mass range. In this study, we present our late-time observations…

A tidal disruption event (TDE) takes place when a star passes near enough to a massive black hole to be disrupted. About half the star's matter is given elliptical trajectories with large apocenter distances, the other half is unbound. To…

High Energy Astrophysical Phenomena · Physics 2015-04-08 Tsvi Piran , Gilad Svirski , Julian Krolik , Roseanne M. Cheng , Hotaka Shiokawa

Accretion of stars on massive black holes (MBHs) can feed MBHs and generate tidal disruption events (TDEs). We introduce a new physically motivated model to self-consistently treat TDEs in cosmological simulations, and apply it to the…

Astrophysics of Galaxies · Physics 2020-11-25 Hugo Pfister , Jane Dai , Marta Volonteri , Katie Auchettl , Maxime Trebitsch , Enrico Ramirez-Ruiz

We study partial tidal disruption and present a quantitative analysis of the orbital dynamics of the remnant self-bound core. We perform smoothed particle hydrodynamical simulations to show that partial disruption of a star due to the tidal…

High Energy Astrophysical Phenomena · Physics 2023-05-10 Pritam Banerjee , Debojyoti Garain , Shaswata Chowdhury , Dhananjay Singh , Rohan Joshi , Tapobrata Sarkar

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 outcomes of partial disruptions. As the…

Solar and Stellar Astrophysics · Physics 2020-01-14 Taeho Ryu , Julian Krolik , Tsvi Piran , Scott C. Noble

The rate of tidal disruption events (TDEs) can vary by orders of magnitude depending on the environment and the mechanism that launches the stars towards the black hole's vicinity. For the largest rates, two disruptions can take place…

High Energy Astrophysical Phenomena · Physics 2019-01-23 Clément Bonnerot , Elena M. Rossi

Observational evidence suggests that the majority of stars may have been born in stellar clusters or associations. Within these dense environments, dynamical interactions lead to high rates of close stellar encounters. A variety of recent…

High Energy Astrophysical Phenomena · Physics 2021-04-28 Kyle Kremer , Wenbin Lu , Anthony L. Piro , Sourav Chatterjee , Frederic A. Rasio , Claire S. Ye

The unluckiest star orbits a supermassive black hole elliptically. Every time it reaches the pericenter, it shallowly enters the tidal radius and gets partially tidal disrupted, producing a series of flares. Confirmation of a repeated…

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

Tidal Disruption Events (TDEs) are routinely observed in quiescent galaxies, as stars from the nuclear star cluster are scattered into the loss cone of the central supermassive black hole (SMBH). TDEs are also expected to occur in Active…

High Energy Astrophysical Phenomena · Physics 2024-05-24 Chaitanya Prasad , Yihan Wang , Rosalba Perna , K. E. Saavik Ford , Barry McKernan

Tidal disruption events (TDEs) occur when a star gets torn apart by the strong tidal forces of a supermassive black hole, which results in the formation of a debris stream that partly falls back towards the compact object. This gas moves…

High Energy Astrophysical Phenomena · Physics 2022-02-09 Clément Bonnerot , Wenbin Lu

Models for tidal disruption events (TDEs) in which a supermassive black hole disrupts a star commonly assume that the highly eccentric streams of bound stellar debris promptly form a circular accretion disk at the pericenter scale. However,…

High Energy Astrophysical Phenomena · Physics 2017-07-26 Gilad Svirski , Tsvi Piran , Julian Krolik

Stars can be ripped apart by tidal forces in the vicinity of a massive black hole (MBH), causing luminous flares known as tidal disruption events (TDEs). These events could be contributing to the mass growth of intermediate-mass MBHs, and…

High Energy Astrophysical Phenomena · Physics 2024-09-18 M. Polkas , S. Bonoli , E. Bortolas , D. Izquierdo-Villalba , A. Sesana , L. Broggi , N. Hoyer , D. Spinoso

The tidal destruction of a star by a massive black hole, known as a tidal disruption event (TDE), is commonly modeled using the "frozen-in" approximation. Under this approximation, the star maintains exact hydrostatic balance prior to…

High Energy Astrophysical Phenomena · Physics 2019-04-17 Elad Steinberg , Eric R. Coughlin , Nicholas C. Stone , Brian D. Metzger