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Related papers: Optical-Ultraviolet Tidal Disruption Events

200 papers

We present a systematic analysis of the X-ray emission of a sample of 17 optically selected, X-ray-detected tidal disruption events (TDEs) discovered between 2014 and 2021. The X-ray light curves show a diverse range of temporal behaviors,…

High Energy Astrophysical Phenomena · Physics 2024-04-09 Muryel Guolo , Suvi Gezari , Yuhan Yao , Sjoert van Velzen , Erica Hammerstein , S. Bradley Cenko , Yarone M. Tokayer

Tidal Disruption Events (TDEs) are routinely observed in quiescent galaxies, as stars from the nuclear star cluster are scattered into the loss cone of the central supermassive black hole (SMBH). TDEs are also expected to occur in Active…

High Energy Astrophysical Phenomena · Physics 2024-05-24 Chaitanya Prasad , Yihan Wang , Rosalba Perna , K. E. Saavik Ford , Barry McKernan

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

Tidal disruption events (TDEs) are usually discovered at X-ray or optical wavelengths through their transient nature. A characteristic spectral feature of X-ray detected TDEs is a "supersoft" X-ray emission, not observed in any other…

High Energy Astrophysical Phenomena · Physics 2023-03-08 Andrea Sacchi , Guido Risaliti , Giovanni Miniutti

The past decade has experienced an explosive increase of optically-discovered tidal disruption events (TDEs) with the advent of modern time-domain surveys. However, we still lack a comprehensive observational view of their infrared (IR)…

Astrophysics of Galaxies · Physics 2021-04-21 Ning Jiang , Tinggui Wang , Xueyang Hu , Luming Sun , Liming Dou , Lin Xiao

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

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

Tidal Disruption Events (TDEs) occur when stars pass close to supermassive black holes, and have long been predicted to emit cosmic rays and neutrinos. Recently the TDE AT2109dsg was identified in spatial and temporal coincidence with…

High Energy Astrophysical Phenomena · Physics 2021-10-06 Robert Stein

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…

Tidal disruption events (TDEs) are a class of transients that occur when a star is destroyed by the tides of a massive black hole (MBH). Their rates encode valuable MBH demographic information, but this can only be extracted if accurate TDE…

Astrophysics of Galaxies · Physics 2024-12-31 Christian H. Hannah , Nicholas C. Stone , Anil C. Seth , Sjoert van Velzen

We present radio observations of 23 optically discovered tidal disruption events (TDEs) on timescales of 500-3200 days post discovery. We detect nine new TDEs that did not have detectable radio emission at earlier times, indicating a…

Recent observations presented in Cendes et al. (2024a) show that optically selected tidal disruption events (TDEs) commonly produce delayed radio emission that can peak years post-disruption. Here, we explore the multi-wavelength properties…

Tidal disruption events (TDEs), which occur when stars enter the tidal radii of supermassive black holes (SMBHs) and are subsequently torn apart by their tidal forces, represent intriguing phenomena that stimulate growing research interest…

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

Among the many intriguing aspects of optically discovered tidal disruption events (TDEs) is that their temperatures are lower than expected and that the temperature does not evolve as rapidly with decreasing fallback rate as would be…

Astrophysics of Galaxies · Physics 2015-05-27 M. Coleman Miller

Tidal disruption events (TDEs) in active galactic nuclei (AGNs) mark a regime where traditional vacuum models fail to capture the full dynamics, especially due to interaction between stellar debris and pre-existing accretion disks. We…

High Energy Astrophysical Phenomena · Physics 2025-10-10 Minghao Zhang , Wenda Zhang , Hongping Deng , Hengxiao Guo , Jingbo Sun

When a star is torn apart by the tidal forces of a supermassive black hole (a so-called TDE) a transient accretion episode is initiated and a hot, often X-ray bright, accretion disk is formed. Like any accretion flow this disk is turbulent,…

High Energy Astrophysical Phenomena · Physics 2025-11-12 Andrew Mummery

We present a systematic search for tidal disruption events (TDEs) using radio data from the Variables and Slow Transients (VAST) Pilot Survey conducted using the Australian Square Kilometre Array Pathfinder (ASKAP). Historically, TDEs have…

Tidal disruption events (TDEs) of stars by single or binary supermassive black holes (SMBHs) brighten galactic nuclei and reveal a population of otherwise dormant black holes. Adopting event rates from the literature, we aim to establish…

High Energy Astrophysical Phenomena · Physics 2017-08-30 Anastasia Fialkov , Abraham Loeb

We study the rates of tidal disruption of stars by intermediate-mass to supermassive black holes on bound to unbound orbits by using high-accuracy direct N-body experiments. The approaching stars from the star cluster to the black hole can…

High Energy Astrophysical Phenomena · Physics 2018-03-28 Kimitake Hayasaki , Shiyan Zhong , Shuo Li , Peter Berczik , Rainer Spurzem