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Recent studies suggest that tidal disruption events (TDEs) with off-axis jets may manifest as optically overluminous events. To search for jet signatures at late times, we conducted radio observations of eight such optically overluminous…

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

We compute the tidal disruption event (TDE) rate around local massive black holes (MBHs) with masses as low as $2.5\times10^4 {\rm M}_\odot$, thus probing the dwarf regime for the first time. We select a sample of 37 galaxies for which we…

Astrophysics of Galaxies · Physics 2020-10-09 Hugo Pfister , Marta Volonteri , Jane Lixin Dai , Monica Colpi

A unique signature for the presence of massive black holes in very dense stellar regions is occasional giant-amplitude outbursts of multiwavelength radiation from tidal disruption and subsequent accretion of stars that make a close approach…

In the centers of galaxies, stars that orbit supermassive black hole binaries (SMBHBs) can undergo tidal disruptions due to the Lidov-Kozai mechanism. Nevertheless, most previous researches have predominantly focused on full tidal…

High Energy Astrophysical Phenomena · Physics 2024-03-05 Xiao-Jun Wu , Ye-Fei Yuan , Yan Luo , Wenbin Lin

Tidal disruption events (TDEs) provide a clue to the properties of a central supermassive black hole (SMBH) and an accretion disk around it, and to the stellar density and velocity distributions in the nuclear star cluster surrounding the…

High Energy Astrophysical Phenomena · Physics 2023-12-04 Shiyan Zhong , Kimitake Hayasaki , Shuo Li , Peter Berczik , Rainer Spurzem

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

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

Fallback rate of debris after a partial tidal disruption event of a star with an intermediate mass black hole (IMBH) might provide important signatures of such black holes, compared to supermassive ones. Here using smoothed particle…

High Energy Astrophysical Phenomena · Physics 2023-10-06 Debojyoti Garain , Tapobrata Sarkar

Tidal disruption events (TDEs) are unique tools for investigating quiescent supermassive black hole (SMBH), accretion physics, and circumnuclear medium (CNM) environments. The CNM density profile is of great astrophysical significance,…

High Energy Astrophysical Phenomena · Physics 2026-03-09 Chang Zhou , Wei-Hua Lei , Xiangli Lei , Po Ma , Shao-Yu Fu , Zi-Pei Zhu

A star wandering too close to a supermassive black hole (SMBH) will be tidally disrupted. Previous studies of such "tidal disruption event" (TDE) mostly focus on the stellar debris that are bound to the system, because they give rise to…

High Energy Astrophysical Phenomena · Physics 2016-03-09 Xian Chen , Germán Gómez-Vargas , James Guillochon

Massive black hole binaries (MBHBs) are a natural byproduct of galaxy mergers. Previous studies have shown that flares from stellar tidal disruption events (TDEs) are modified by the presence of a secondary perturber, causing interruptions…

High Energy Astrophysical Phenomena · Physics 2016-02-24 Angelo Ricarte , Priyamvada Natarajan , Lixin Dai , Paolo Coppi

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

We present a multi-wavelength analysis of 14 tidal disruption events (TDEs)-including an off-nuclear event associated with an ultra-compact dwarf galaxy-selected for having available thermal X-ray spectra during their late-time UV/optical…

High Energy Astrophysical Phenomena · Physics 2025-11-03 M. Guolo , A. Mummery , S. van Velzen , S. Gezari , M. Nicholl , Y. Yao , M. Karmen , Y. Ajay , T. Wevers , N. LeBaron , R. Chornock

We construct a time-dependent relativistic accretion model for tidal disruption events (TDEs) with an $\alpha-$viscosity and the pressure dominated by gas pressure. We also include the mass fallback rate $\dot{M}_f$ for both full and…

High Energy Astrophysical Phenomena · Physics 2020-06-17 T. Mageshwaran , Sudip Bhattacharyya

Classic models of tidal disruption events (TDEs), employing a purely Keplerian description of stellar debris dynamics, have proven remarkably successful in describing the observed emission of these transients. We extend these simple models…

High Energy Astrophysical Phenomena · Physics 2026-02-26 Cedric Oña , Sean Fortuna , Ian Vega

Stars that interact with supermassive black holes (SMBHs) can either be completely or partially destroyed by tides. In a partial tidal disruption event (TDE) the high-density core of the star remains intact, and the low-density, outer…

High Energy Astrophysical Phenomena · Physics 2023-01-18 T. Wevers , E. R. Coughlin , D. R. Pasham , M. Guolo , Y. Sun , S. Wen , P. G. Jonker , A. Zabludoff , A. Malyali , R. Arcodia , Z. Liu , A. Merloni , A. Rau , I. Grotova , P. Short , Z. Cao

A star that wanders too close to a massive black hole (BH) is shredded by the BH's tidal gravity. Stellar gas falls back to the BH, releasing a flare of energy. In anticipation of upcoming transient surveys, we predict the light curves and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Linda E. Strubbe , Eliot Quataert

We explore the physics and observational consequences of tidal compression events (TCEs) of dark-matter clumps (DMCs) by supermassive black holes (SMBHs). Our analytic calculations show that a DMC approaching a SMBH much closer than the…

High Energy Astrophysical Phenomena · Physics 2016-02-17 Yacine Ali-Haïmoud , Ely D. Kovetz , Joseph Silk

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