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Related papers: A unified model for tidal disruption events

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We develop a model describing the dynamical and observed properties of disc-dominated TDEs around black holes with the lowest masses ($M \lesssim {\rm few} \times 10^{6} M_\odot$). TDEs around black holes with the lowest masses are most…

High Energy Astrophysical Phenomena · Physics 2021-06-16 Andrew Mummery

We perform a comprehensive analysis of a population of 19 X-ray bright tidal disruption events (TDEs), fitting their X-ray spectra with a new, physically self consistent, relativistic accretion disc model. Not all of the TDEs inhabit…

High Energy Astrophysical Phenomena · Physics 2023-01-19 Andrew Mummery , Thomas Wevers , Richard Saxton , Dheeraj Pasham

Tidal disruption events (TDEs) are transient, multi-wavelength events in which a star is ripped apart by a supermassive black hole. Observations show that in a small fraction of TDEs, a short-lived, synchrotron emitting jet is produced. We…

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

A fraction of tidal disruption events (TDEs) occur in active galactic nuclei (AGNs) whose black holes possess accretion disks; these TDEs can be confused with common AGN flares. The disruption itself is unaffected by the disk, but the…

High Energy Astrophysical Phenomena · Physics 2020-01-24 Chi-Ho Chan , Tsvi Piran , Julian H. Krolik , Dekel Saban

In addition to a supermassive black hole (SMBH), the central parsec of the Milky Way hosts over a hundred of massive, high velocity young stars whose existence, and organisation of a subset of them in one, or possibly two, mis-aligned…

Astrophysics of Galaxies · Physics 2022-11-09 Rosalba Perna , Evgeni Grishin

Observational consequences of tidal disruption of stars (TDEs) by supermassive black holes (SMBHs) can enable us to discover quiescent SMBHs, constrain their mass function, study formation and evolution of transient accretion disks and jet…

High Energy Astrophysical Phenomena · Physics 2015-06-23 I. Donnarumma , E. M. Rossi

Three recent global simulations of tidal disruption events (TDEs) have produced, using different numerical techniques and parameters, very similar pictures of their dynamics. In typical TDEs, after the star is disrupted by a supermassive…

High Energy Astrophysical Phenomena · Physics 2025-03-04 Julian Krolik , Tsvi Piran , Taeho Ryu

The tidal disruption event (TDE) AT2022cmc represents the fourth known example of a relativistic jet produced by the tidal disruption of a stray star providing a unique probe of the formation and evolution of relativistic jets in otherwise…

High Energy Astrophysical Phenomena · Physics 2024-12-31 T. Eftekhari , A. Tchekhovskoy , K. D. Alexander , E. Berger , R. Chornock , T. Laskar , R. Margutti , Y. Yao , Y. Cendes , S. Gomez , A. Hajela , D. R. Pasham

Tidal disruption events (TDEs) occur when stars pass close enough to supermassive black holes to be torn apart by tidal forces. Traditionally, these events are studied with computationally intensive hydrodynamical simulations. In this…

High Energy Astrophysical Phenomena · Physics 2025-10-10 Zihan Zhou , Giovanni Maria Tomaselli , Irvin Martínez-Rodríguez , Jingping Li

We explore the accretion states of tidal disruption events (TDEs) using a sample of 7 X- ray bright sources. To this end, we estimate the relative contribution of the disk and corona to the observed X-ray emission through spectral modeling,…

High Energy Astrophysical Phenomena · Physics 2020-06-15 Thomas Wevers

Tidal Disruption Events (TDEs) are rare transients, which are considered as promising tools in probing supermassive black holes in quiescent galaxies. The majority of $\approx 60$ known TDEs has been discovered with time-domain surveys in…

High Energy Astrophysical Phenomena · Physics 2023-07-06 K. Bučar Bricman , S. van Velzen , M. Nicholl , A. Gomboc

Tidal disruption events (TDEs) occur when a star is gravitationally disrupted by the tidal field of a supermassive black hole during a close encounter. Radio emission has recently been detected in TDEs and is commonly attributed to…

High Energy Astrophysical Phenomena · Physics 2025-12-30 Yuri Sato , Mukul Bhattacharya , Jose Carpio , Jewel Capili , Kohta Murase

One of the main challenges of current tidal disruption events (TDEs) studies is that emission arising from AGN activity may potentially mimic the expected X-ray emission of a TDE. Here we compare the X-ray properties of TDEs and AGN to…

High Energy Astrophysical Phenomena · Physics 2018-04-27 Katie Auchettl , Enrico Ramirez-Ruiz , James Guillochon

We present a review of the topics of X-ray stellar tidal disruption events (TDEs) and changing-look active galactic nuclei (AGN). Stars approaching a supermassive black hole (SMBH) can be tidally disrupted and accreted. TDEs were first…

High Energy Astrophysical Phenomena · Physics 2023-05-24 S. Komossa , D. Grupe

Observations of the spectacular, blazar-like tidal disruption event (TDE) candidates Swift J1644+57 and J2058+05 show that the conditions required for accelerating protons to 10^{20} eV appear to be realized in the outer jet, and possibly…

High Energy Astrophysical Phenomena · Physics 2014-11-05 Glennys R. Farrar , Tsvi Piran

Tidal Disruption Events (TDEs) are transient events observed when a star passes close enough to a supermassive black hole to be tidally destroyed. Many TDE candidates have been discovered in host galaxies whose spectra have weak or no line…

Astrophysics of Galaxies · Physics 2016-02-12 K. Decker French , Iair Arcavi , Ann Zabludoff

With the sample of observed tidal disruption events (TDEs) now reaching several tens, distinct spectroscopic classes have emerged: TDEs with only hydrogen lines (TDE-H), only helium lines (TDE-He), or hydrogen in combination with He II and…

High Energy Astrophysical Phenomena · Physics 2022-08-17 Matt Nicholl , Daniel Lanning , Paige Ramsden , Brenna Mockler , Andy Lawrence , Phil Short , Evan J. Ridley

Tidal disruption events (TDEs) taking place in active galactic nuclei (AGNs) are different from ordinary TDEs. In these events, the returning tidal debris stream drills through the pre-existing AGN accretion disk near the stream pericenter,…

High Energy Astrophysical Phenomena · Physics 2022-01-10 Chi-Ho Chan , Tsvi Piran , Julian H. Krolik
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