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Related papers: Partial stellar tidal disruption events and their …

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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

The tidal disruption of a star by a massive black hole is expected to yield a luminous flare of thermal emission. About two dozen of these stellar tidal disruption flares (TDFs) may have been detected in optical transient surveys. However,…

High Energy Astrophysical Phenomena · Physics 2018-01-11 Sjoert van Velzen

Tidal disruption events (TDEs) offer a unique probe of supermassive black hole (SMBH) demographics, but their observed rates remain difficult to reconcile with standard single-SMBH models. In this work, we use simulations of SMBH binaries,…

Astrophysics of Galaxies · Physics 2025-07-14 Denyz Melchor , Smadar Naoz , Suvi Gezari , Brenna Mockler

We explore the rates of tidal disruption events (TDEs) of stars by supermassive black holes (SBHs) in galactic nuclei formed in mergers followed by a formation and coalescence of a binary SBH. Such systems initially have a deficit of stars…

Astrophysics of Galaxies · Physics 2016-11-09 Kirill Lezhnin , Eugene Vasiliev

The disruption of stars by supermassive black holes has been linked to more than a dozen flares in the cores of galaxies out to redshift $z \sim 0.4$. Modeling these flares properly requires a prediction of the rate of mass return to the…

High Energy Astrophysical Phenomena · Physics 2015-06-05 James Guillochon , Enrico Ramirez-Ruiz

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

Tidal disruption events (TDEs), in which stars are gravitationally disrupted as they pass close to the supermassive black holes in the centres of galaxies, are potentially important probes of strong gravity and accretion physics. Most TDEs…

Astrophysics of Galaxies · Physics 2017-02-10 C. Tadhunter , R. Spence , M. Rose , J. Mullaney , P. Crowther

The tidal disruption of stars by supermassive black holes (SMBHs) probes relativistic gravity. In the coming decade, the number of observed tidal disruption events (TDEs) will grow by several orders of magnitude, allowing statistical…

High Energy Astrophysical Phenomena · Physics 2022-09-07 Eric R. Coughlin , Chris Nixon

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…

Close encounters between stellar-mass black holes (BHs) and stars occur frequently in dense star clusters and in the disks of active galactic nuclei (AGNs). Recent studies have shown that in highly eccentric close encounters, the star can…

High Energy Astrophysical Phenomena · Physics 2023-03-24 Chengcheng Xin , Zoltan Haiman , Rosalba Perna , Yihan Wang , Taeho Ryu

In the coming years, surveys such as the Rubin Observatory's Legacy Survey of Space and Time (LSST) are expected to increase the number of observed Tidal Disruption Events (TDEs) substantially. We employ Monte Carlo integration to calculate…

High Energy Astrophysical Phenomena · Physics 2026-01-16 E. Mamuzic , T. Ryu , S. H. Suyu , K. Szekerczes , S. Huber , L. Dai , M. Oguri

The tidal force from a supermassive black hole can rip apart a star that passes close enough in what is known as a Tidal Disruption Event. Typically half of the destroyed star remains bound to the black hole and falls back on highly…

High Energy Astrophysical Phenomena · Physics 2019-02-27 Elen Golightly , Eric Coughlin , Chris Nixon

This is the second in a series of papers presenting the results of fully general relativistic simulations of stellar tidal disruptions in which the stars' initial states are realistic main-sequence models. We consider eight different…

Astrophysics of Galaxies · Physics 2020-01-14 Taeho Ryu , Julian Krolik , Tsvi Piran , Scott Noble

Observations of tidal disruption events (TDEs) show signs of Nitrogen enrichment reminiscent of other astrophysical sources such as active galactic nuclei (AGN) and star-forming galaxies. Given that TDEs probe the gas from a single star, it…

High Energy Astrophysical Phenomena · Physics 2024-06-10 Brenna Mockler , Monica Gallegos-Garcia , Ylva Götberg , Jon Miller , Enrico Ramirez-Ruiz

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…

Radio observations of tidal disruption events (TDEs) probe material ejected by the disruption of stars by supermassive black holes (SMBHs), uniquely tracing the formation and evolution of jets and outflows, revealing details of the…

High Energy Astrophysical Phenomena · Physics 2020-07-08 Kate D. Alexander , Sjoert van Velzen , Assaf Horesh , B. Ashley Zauderer

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

In the centers of dense star clusters, close encounters between stars and compact objects are likely to occur. We study tidal disruption events of main-sequence (MS) stars by stellar-mass black holes (termed $\mu$TDEs), which can shed light…

High Energy Astrophysical Phenomena · Physics 2024-05-08 Pavan Vynatheya , Taeho Ryu , Ruediger Pakmor , Selma E. de Mink , Hagai B. Perets

A star is tidally disrupted by a supermassive black hole when their separation is shorter than the "tidal radius". This quantity is often estimated on an order-of-magnitude basis without reference to the star's internal structure. Using…

Astrophysics of Galaxies · Physics 2020-01-14 Taeho Ryu , Julian Krolik , Tsvi Piran , Scott Noble

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
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