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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

Nuclear star clusters (NSCs), made up of a dense concentrations of stars and the compact objects they leave behind, are ubiquitous in the central regions of galaxies, surrounding the central supermassive black hole (SMBH). Close…

High Energy Astrophysical Phenomena · Physics 2024-03-28 Taeho Ryu , Rosalba Perna , Matteo Cantiello

Tidal disruption events (TDEs) have traditionally been discovered in optical sky surveys through targeted searches of nuclear transients. However, it is expected that some TDEs will occur outside the galaxy nucleus, arising from wandering…

Dynamical perturbations from supermassive black hole (SMBH) binaries can increase the rates of tidal disruption events (TDEs). However, most previous work focuses on TDEs from the heavy black hole in the SMBH binary (SMBHB) system. In this…

High Energy Astrophysical Phenomena · Physics 2023-06-13 Brenna Mockler , Denyz Melchor , Smadar Naoz , Enrico Ramirez-Ruiz

Rates of stellar tidal disruption events (TDEs) by supermassive black holes (SMBHs) due to two-body relaxation are calculated using a large galaxy sample (N=146) in order to explore the sensitivity of the TDE rates to observational…

High Energy Astrophysical Phenomena · Physics 2016-02-26 Nicholas C. Stone , Brian D. Metzger

Tidal disruption events (TDEs) observed in massive galaxies with inferred central black hole masses $M_h > 10^8 \ M_\odot$ are presumptive candidates for TDEs by lower mass secondaries in binary systems. We use hydrodynamic simulations to…

Astrophysics of Galaxies · Physics 2017-12-27 Eric R. Coughlin , Philip J. Armitage

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 capture and disruption of stars by supermassive black holes (SMBHs), and the formation and coalescence of binaries, are inevitable consequences of the presence of SMBHs at the cores of galaxies. Pairs of active galactic nuclei (AGN) and…

Astrophysics of Galaxies · Physics 2017-08-23 S. Komossa , J. A. Zensus

Tidal disruption events (TDEs) can be observed when stars get too close to supermassive black holes and are torn apart and accreted. The delay time distribution of TDEs, or rate of TDEs as a function of time since a burst of star formation,…

Tidal disruption events are rare and diverse transients that occur when a star is torn apart by a supermassive black hole and accreted, which can result in a supersoft X-ray thermal transient. Here, we present nine tidal disruption event…

High Energy Astrophysical Phenomena · Physics 2025-08-13 R. A. J. Eyles-Ferris , R. L. C. Starling , P. T. O'Brien , K. L. Page , P. A. Evans

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

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

Stars passing too close to a black hole can produce tidal disruption events (TDEs), when the tidal force across the star exceeds the gravitational force that binds it. TDEs have usually been discussed in relation to massive black holes that…

Astrophysics of Galaxies · Physics 2019-08-21 Giacomo Fragione , Nathan Leigh , Rosalba Perna , Bence Kocsis

We explore full/partial tidal disruption events (TDEs) of stars/planets by stellar compact objects (Black holes; BHs; or neutron stars; NSs), which we term micro-TDEs. Disruption of a star/planet with mass $M_{\star}$ may lead to the…

High Energy Astrophysical Phenomena · Physics 2016-06-08 Hagai B. Perets , Zhuo Li , James C. Lombardi , Stephen R. Milcarek

Restricted by event horizon suppression, tidal disruption events (TDEs) provide a unique window into otherwise hidden supermassive black holes (SMBHs) at the lower end of the mass spectrum, allowing the connection between star formation and…

Astrophysics of Galaxies · Physics 2026-01-29 Paige Ramsden , Sean L. McGee , Matt Nicholl

The cooling envelope model for tidal disruption events (TDE) postulates that while the stellar debris streams rapidly dissipate their bulk kinetic energy (``circularize"), this does not necessarily imply rapid feeding of the supermassive…

High Energy Astrophysical Phenomena · Physics 2024-01-22 Nikhil Sarin , Brian D. Metzger

We present a physically-grounded population model for optical tidal disruption events (TDEs) that combines first-principles hydrodynamic simulations of stellar disruption with statistical inference of the underlying stellar and black hole…

High Energy Astrophysical Phenomena · Physics 2026-01-29 Tsvi Piran , Julian Krolik , Taeho Ryu

Active galactic nuclei (AGNs) can act as black hole assembly lines, funneling some of the stellar-mass black holes from the vicinity of the galactic center into the inner plane of the AGN disk where the black holes can merge through…

High Energy Astrophysical Phenomena · Physics 2022-07-27 Y. Yang , I. Bartos , G. Fragione , Z. Haiman , M. Kowalski , S. Marka , R. Perna , H. Tagawa

The tidal disruption of a star by a supermassive black hole (SMBH) is a highly energetic event with consequences dependent on the degree to which the star plunges inside the SMBH's tidal sphere. We introduce a new analytic model for tidal…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Nicholas Stone , Re'em Sari , Abraham Loeb

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