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In a dense stellar environment, such as the core of a globular cluster (GC), dynamical interactions with black holes (BHs) are expected to lead to a variety of astrophysical transients. Here we explore tidal disruption events (TDEs) of…

High Energy Astrophysical Phenomena · Physics 2019-08-21 Kyle Kremer , Wenbin Lu , Carl L. Rodriguez , Mitchell Lachat , Frederic Rasio

Thanks to the advent of large-scale optical surveys, a diverse set of flares from the nuclear regions of galaxies has recently been discovered. These include the disruption of stars by supermassive black holes at the centers of galaxies -…

Tidal disruption events (TDEs) are multi-messenger transients in which a star is tidally destroyed by a supermassive black hole at the center of galaxies. The Rubin Observatory Legacy Survey of Space and Time (LSST) is anticipated to…

High Energy Astrophysical Phenomena · Physics 2024-10-30 K. Szekerczes , T. Ryu , S. H. Suyu , S. Huber , M. Oguri , L. Dai

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

Tidal disruption events (TDEs) occur when a star enters the tidal radius of a supermassive black hole (SMBH). If the star only grazes the tidal radius, a fraction of the stellar mass will be accreted in a partial TDE (pTDE). The remainder…

Time domain optical surveys have discovered roughly a dozen candidate stellar tidal disruption flares in the last five years, and future surveys like the {\it Large Synoptic Survey Telescope} will likely find hundreds to thousands more.…

Astrophysics of Galaxies · Physics 2016-12-30 Nicholas C. Stone , Sjoert van Velzen

Observational astronomy of tidal disruption events (TDEs) began with the detection of X-ray flares from quiescent galaxies during the ROSAT all-sky survey of 1990-1991. The flares complied with theoretical expectations, having high peak…

High Energy Astrophysical Phenomena · Physics 2021-03-30 R. Saxton , S. Komossa , K. Auchettl , P. G Jonker

A supermassive black hole in the nucleus of a galaxy will be revealed when a star passes close enough to be torn apart by tidal forces and a flare of radiation is emitted by the stream of stellar debris that plunges into the black hole.…

Recent studies of Tidal Disruption Events (TDEs) have revealed unexpected correlations between the TDE rate and the large-scale properties of the host galaxies. In this review, we present the host galaxy properties of all TDE candidates…

High Energy Astrophysical Phenomena · Physics 2020-03-23 K. Decker French , Thomas Wevers , Jamie Law-Smith , Or Graur , Ann I. Zabludoff

Tidal disruption events (TDEs) occur when a star passes close to a massive black hole, so that the tidal forces of the black hole exceed the binding energy of a star and cause it to be ripped apart. Part of the matter will fall onto the…

High Energy Astrophysical Phenomena · Physics 2023-05-24 Natalie A. Webb , Didier Barret , Olivier Godet , Maitrayee Gupta , Dacheng Lin , Erwan Quintin , Hugo Tranin

Recent observations of changing-look active galactic nuclei (AGN) hint at a frequency of accretion activity not fully explained by tidal disruption events (TDEs) stemming from relaxation processes in nucleus star clusters (NSCs),…

High Energy Astrophysical Phenomena · Physics 2023-10-03 Yihan Wang , Douglas N. C. Lin , Bing Zhang , Zhaohuan Zhu

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

X-ray quasi-periodic eruptions (QPEs) are rare and enigmatic phenomena that increasingly show a connection to tidal disruption events (TDEs). However, the recently discovered QPEs in ZTF19acnskyy ("Ansky") appear to be linked to an active…

Stars in galactic centers are occasionally scattered so close to the central supermassive black hole that they are completely disrupted by tidal forces, initiating a transient accretion event. The aftermath of such a tidal disruption event…

High Energy Astrophysical Phenomena · Physics 2025-03-19 Andrew Mummery , Muryel Guolo , James Matthews , Megan Newsome , Chris Lintott , William Keel

Tidal Disruption Events (TDEs) have long been hypothesized as valuable indicators of black holes, offering insight into their demographics and behaviour out to high redshift. TDEs have also enabled the discovery of a few Massive Black Holes…

We report a candidate repeating tidal disruption event (TDE), AT2022sxl, found from large-field optical survey data. Two flares with a separation time of $\sim$7.2\,yr between the two optical peaks are observed. Related mid-infrared (MIR)…

High Energy Astrophysical Phenomena · Physics 2025-08-14 Shunhao Ji , Zhongxiang Wang , Litao Zhu , Stefan Geier , Alok C. Gupta

We present the optical and infrared properties of a sample of 24 radio transient sources discovered in the Very Large Array Sky Survey (VLASS). Previous studies of their radio emission showed that these sources resemble young…

High Energy Astrophysical Phenomena · Physics 2025-10-03 M. Kunert-Bajraszewska , D. Kozieł-Wierzbowska , D. Stern , A. Krauze , N. Zafar , T. Connor , M. J. Graham

We study the properties of tidal disruption event (TDE) host galaxies in the context of a catalog of ~500,000 galaxies from the Sloan Digital Sky Survey. We explore whether selection effects can account for the overrepresentation of TDEs in…

High Energy Astrophysical Phenomena · Physics 2017-11-16 Jamie Law-Smith , Enrico Ramirez-Ruiz , Sara L. Ellison , Ryan J. Foley

We present the results of a large multi-wavelength follow-up campaign of the Tidal Disruption Event (TDE) \dsg, focusing on low to high resolution optical spectroscopy, X-ray, and radio observations. The galaxy hosts a super massive black…