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Related papers: Comparison of different Tidal Disruption Event lig…

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A star approaching a supermassive black hole (SMBH) can be torn apart in a tidal disruption event (TDE). We examine ultra-deep TDEs, a new regime in which the disrupted debris approaches close to the black hole's Schwarzschild radius, and…

High Energy Astrophysical Phenomena · Physics 2019-07-24 Siva Darbha , Eric R. Coughlin , Daniel Kasen , Chris Nixon

In recent years, a new subclass of tidal disruption events (TDEs) was reported from the literature. The light curve of these TDEs show a re-brightening feature in the decline phase after the first peak, which then leads to a second flare.…

High Energy Astrophysical Phenomena · Physics 2025-03-18 Shiyan Zhong

After the Tidal Disruption Event (TDE) of a star around a SuperMassive Black Hole (SMBH), the bound stellar debris rapidly forms an accretion disk. If the accretion disk is not aligned with the spinning SMBH's equatorial plane, the disk…

High Energy Astrophysical Phenomena · Physics 2019-06-12 J. J. Zanazzi , Dong Lai

We present a toy model for the thermal optical/UV/X-ray emission from tidal disruption events (TDE). Motivated by recent hydrodynamical simulations, we assume the debris streams promptly and rapidly circularize (on the orbital period of the…

High Energy Astrophysical Phenomena · Physics 2022-09-28 Brian D. Metzger

In a tidal disruption event (TDE), a star is disrupted by the tidal field of a massive black hole, creating a debris stream that returns to the black hole, forms an accretion flow, and powers a luminous flare. Over the last few decades,…

High Energy Astrophysical Phenomena · Physics 2026-05-22 Noah Kubli , Alessia Franchini , Eric R. Coughlin , C. J. Nixon , Sebastian Keller , Pedro R. Capelo , Lucio Mayer

When a star passes too close to a supermassive black hole, it gets disrupted by strong tidal forces. The stellar debris then evolves into an elongated stream of gas that partly falls back towards the black hole. We present an analytical…

High Energy Astrophysical Phenomena · Physics 2022-08-18 Clément Bonnerot , Martin E. Pessah , Wenbin Lu

The strong tidal force in a supermassive black hole's (SMBH) vicinity, coupled with a higher stellar density at the center of a galaxy, make it an ideal location to study the interaction between stars and black holes. Two stars moving near…

High Energy Astrophysical Phenomena · Physics 2025-04-17 Betty X. Hu , Avi Loeb

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

We present hydrodynamic simulations with the moving-mesh code AREPO of Tidal Disruption Encores (TDEEs) in nuclear star clusters (NSCs). TDEEs arise when a stellar-mass black hole (sBH) disrupts a star within the NSC, producing debris that…

High Energy Astrophysical Phenomena · Physics 2026-02-02 Ian P. A. Johnson , Taeho Ryu , Rosalba Perna

Tidal disruption events (TDEs) can potentially probe low-mass black holes in host galaxies that might not adhere to bulge or stellar-dispersion relationships. At least initially, TDEs can also reveal super-Eddington accretion. X-ray…

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

The tidal disruption of stars by supermassive black holes (SMBHs) can be used to probe the SMBH mass function, the properties of individual stars, and stellar dynamics in galactic nuclei. Upcoming missions will detect thousands of TDEs, and…

High Energy Astrophysical Phenomena · Physics 2019-09-25 Elen C. A. Golightly , C. J. Nixon , Eric R. Coughlin

Tidal disruption events (TDEs) are bursts of electromagnetic energy released when supermassive black holes (SMBHs) at the centers of galaxies violently disrupt a star that passes too close. TDEs provide a new window to study accretion onto…

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

The disruption of a main-sequence star by a supermassive black hole results in the initial production of an extended debris stream that winds repeatedly around the black hole, producing a complex three-dimensional figure that may…

High Energy Astrophysical Phenomena · Physics 2015-09-09 James Guillochon , Enrico Ramirez-Ruiz

A bright flare from a galactic nucleus followed at late times by a $t^{-5/3}$ decay in luminosity is often considered the signature of the complete tidal disruption of a star by a massive black hole. The flare and power-law decay are…

Astrophysics of Galaxies · Physics 2015-06-03 Christopher Evans , Pablo Laguna , Michael Eracleous

Tidal disruption events (TDEs) can uncover the quiescent supermassive black holes (SMBHs) at the center of galaxies. After the disruption of a star by a SMBH, the highly elliptical orbit of the debris stream will be gradually circularized…

High Energy Astrophysical Phenomena · Physics 2023-09-08 Jin-Hong Chen , Li-Ming Dou , Rong-Feng Shen

Tidal Disruption Events (TDEs) occur when stars pass close to supermassive black holes, and have long been predicted to emit cosmic rays and neutrinos. Recently the TDE AT2109dsg was identified in spatial and temporal coincidence with…

High Energy Astrophysical Phenomena · Physics 2021-10-06 Robert Stein

We argue that the `changing look' AGN recently reported by LaMassa et al. could be a luminous flare produced by the tidal disruption of a super-solar mass star passing just a few gravitational radii outside the event horizon of a $\sim 10^8…

High Energy Astrophysical Phenomena · Physics 2015-08-06 A. Merloni , T. Dwelly , M. Salvato , A. Georgakakis , J. Greiner , M. Krumpe , K. Nandra , G. Ponti , A. Rau