Results 51 to 60 of about 1,263,228 (294)
A New Population of Mid-infrared-selected Tidal Disruption Events: Implications for Tidal Disruption Event Rates and Host Galaxy Properties [PDF]
Astrophysical JournalMost tidal disruption events (TDEs) are currently found in time-domain optical and soft X-ray surveys, both of which are prone to significant obscuration. The infrared (IR), however, is a powerful probe of dust-enshrouded environments; hence, we recently
M. Masterson +16 more
semanticscholar +1 more source
Delayed radio flares from a tidal disruption event [PDF]
Nature Astronomy, 2021 Radio observations of tidal disruption events (TDEs)—when a star is tidally disrupted by a supermassive black hole (SMBH)—provide a unique laboratory for studying outflows in the vicinity of SMBHs and their connection to accretion onto the supermassive ...
A. Horesh, S. Cenko, I. Arcavi
semanticscholar +1 more source
A Unified Model for Tidal Disruption Events [PDF]
The Astrophysical Journal Letters, 2018 Abstract In the past few years wide-field optical and UV transient surveys and X-ray telescopes have allowed us to identify a few dozen candidate tidal disruption events (TDEs). While in theory the physical processes in TDEs are ubiquitous, a few distinct classes of TDEs have been observed.
Lixin Dai +4 more
openaire +3 more sources
Radio Observations of an Ordinary Outflow from the Tidal Disruption Event AT2019dsg [PDF]
Astrophysical Journal, 2021 We present detailed radio observations of the tidal disruption event (TDE) AT2019dsg, obtained with the Karl G. Jansky Very Large Array (VLA) and the Atacama Large Millimeter/submillimeter Array (ALMA), and spanning 55–560 days post disruption.
Y. Cendes +5 more
semanticscholar +1 more source
Tidal Disruptions of Main-sequence Stars. V. The Varieties of Disruptions [PDF]
The Astrophysical Journal, 2020 Abstract Tidal disruption events (TDEs) are generally imagined as the complete disruption of a star when it passes close to a supermassive black hole (SMBH). Relativistic apsidal precession is thought to quickly “circularize” the bound debris, forming a compact accretion disk, which then emits a flare of standardized light curve and ...
Julian Krolik, Tsvi Piran, Taeho Ryu
openaire +2 more sources
AT2021lwx: Another Neutrino-coincident Tidal Disruption Event with a Strong Dust Echo? [PDF]
Astrophysical JournalWe discuss the possible association of an astrophysical neutrino (IC220405B) with the recently reported, extremely energetic tidal disruption event (TDE) candidate AT2021lwx (ZTF20abrbeie, aka “Scary Barbie”) at redshift z = 0.995.
C. Yuan 袁, Walter Winter, C. Lunardini
semanticscholar +1 more source
Underluminous tidal disruption events [PDF]
Monthly notices of the Royal Astronomical Society, 2023 We have evidence of X-ray flares in several galaxies consistent with a a star being tidally disrupted by a supermassive black hole (MBH). If the star starts on a nearly parabolic orbit relative to the MBH, one can derive that the fallback rate follows ...
P. A. Seoane
semanticscholar +1 more source
DOUBLE TIDAL DISRUPTIONS IN GALACTIC NUCLEI [PDF]
The Astrophysical Journal, 2015 A star on a nearly radial trajectory approaching a massive black hole (MBH) gets tidally disrupted if it comes sufficiently close to the MBH. Here we explore what happens to binary stars whose centers of mass approach the MBH on nearly radial orbits. The interaction with the MBH often leads to both stars being disrupted in sequence.
Ilya Mandel, Yuri Levin
openaire +2 more sources
Late-time Radio Flares in Tidal Disruption Events [PDF]
Astrophysical JournalRadio 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, T. Piran
semanticscholar +1 more source
Infrared Echoes of Optical Tidal Disruption Events: ∼1% Dust-covering Factor or Less at Subparsec Scale [PDF]
Astrophysical Journal, 2021 The past decade has experienced an explosive increase of optically discovered tidal disruption events (TDEs) with the advent of modern time-domain surveys.
N. Jiang +5 more
semanticscholar +1 more source