Results 11 to 20 of about 1,089,729 (237)

Revisit the Rate of Tidal Disruption Events: The Role of the Partial Tidal Disruption Event [PDF]

open access: goldAstrophysical Journal, 2022
Tidal disruption of stars in dense nuclear star clusters containing supermassive central black holes (SMBH) is modeled by high-accuracy direct N-body simulation. Stars getting too close to the SMBH are tidally disrupted, and a tidal disruption event (TDE)
Shiyan Zhong   +3 more
openalex   +3 more sources

Late-time Radio Flares in Tidal Disruption Events [PDF]

open access: greenThe Astrophysical Journal
Radio monitoring unveiled late (hundreds to a thousand days) radio flares in a significant fraction of tidal disruption events. We propose that these late-time radio flares are a natural outcome if the surrounding density profile flattens outside the ...
Tatsuya Matsumoto, Tsvi Piran
doaj   +2 more sources

A well-monitored, X-ray selected, tidal disruption event [PDF]

open access: diamondEPJ Web of Conferences, 2012
We report on a candidate tidal disruption event detected in the XMM-Newton slew survey from the nucleus of SDSS J120136.02+300305.5 (z = 0.146; hereafter SDSS J1201+30).
Komossa S.   +3 more
doaj   +2 more sources

Radio Emission from Tidal Disruption Events Produced by the Collision between Super-Eddington Outflows and the Circumnuclear Medium

open access: goldThe Astrophysical Journal Letters
In this Letter, we simulate the collision between outflows from the tidal disruption of a 1 M _⊙ main-sequence star around a 10 ^6 M _⊙ black hole and an initially spherically symmetric circumnuclear cloud.
Fangyi (Fitz) Hu   +5 more
doaj   +2 more sources

Tidal Disruption Event Demographics with the Zwicky Transient Facility: Volumetric Rates, Luminosity Function, and Implications for the Local Black Hole Mass Function [PDF]

open access: yesAstrophysical Journal Letters, 2023
We conduct a systematic tidal disruption event (TDE) demographics analysis using the largest sample of optically selected TDEs. A flux-limited, spectroscopically complete sample of 33 TDEs is constructed using the Zwicky Transient Facility over 3 yr ...
Yuhan Yao   +28 more
semanticscholar   +1 more source

The rebrightening of a ROSAT-selected tidal disruption event: repeated weak partial disruption flares from a quiescent galaxy? [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2023
The ROSAT-selected tidal disruption event (TDE) candidate RX J133157.6-324319.7 (J1331), was detected in 1993 as a bright (0.2–2 keV flux of (1.0 ± 0.1) × 10−12 erg s−1 cm−2), ultra-soft (kT = 0.11 ± 0.03 keV) X-ray flare from a quiescent galaxy (z = 0.
A. Malyali   +13 more
semanticscholar   +1 more source

Tormund's return: Hints of quasi-periodic eruption features from a recent optical tidal disruption event [PDF]

open access: yesAstronomy & Astrophysics, 2023
Quasi-periodic eruptions (QPEs) are repeating thermal X-ray bursts associated with accreting massive black holes, the precise underlying physical mechanisms of which are still unclear.
E. Quintin   +10 more
semanticscholar   +1 more source

Nitrogen enhancements 440 Myr after the Big Bang: super-solar N/O, a tidal disruption event or a dense stellar cluster in GN-z11? [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2023
Recent observations of GN-z11 with JWST/NIRSpec revealed numerous oxygen, carbon, nitrogen, and helium emission lines at z = 10.6. Using the measured line fluxes, we derive abundance ratios of individual elements within the interstellar medium (ISM) of
A. Cameron   +3 more
semanticscholar   +1 more source

A radio-emitting outflow produced by the tidal disruption event AT2020vwl [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2023
A tidal disruption event (TDE) occurs when a star is destroyed by a supermassive black hole. Broadband radio spectral observations of TDEs trace the emission from any outflows or jets that are ejected from the vicinity of the supermassive black hole ...
A. Goodwin   +14 more
semanticscholar   +1 more source

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