Results 71 to 80 of about 1,263,228 (294)

Using the Hills Mechanism to Generate Repeating Partial Tidal Disruption Events and ASASSN-14ko [PDF]

open access: yesAstrophysical Journal Letters, 2022
Periodic nuclear transients have been detected with increasing frequency, with one such system—ASASSN-14ko—exhibiting highly regular outbursts on a timescale of 114 ± 1 days. It has been postulated that the outbursts from this source are generated by the
M. Cufari, E. Coughlin, C. Nixon
semanticscholar   +1 more source

Tidal Stripping and Disruption of Globular Clusters [PDF]

open access: yesSymposium - International Astronomical Union, 1985
Tidal stripping and disruption of globular clusters may be responsible for the absence of low density clusters in the inner region of the Galaxy. We have studied these processes by integrating orbits of stars while the cluster is moving through a spherically symmetric galactic potential with constant circular velocity (Vcir =220 km/s).
VANALBADA, TS, BONTEKOE, TR
openaire   +2 more sources

A detailed spectroscopic study of Tidal Disruption Events [PDF]

open access: yes, 2021
Spectroscopically, tidal disruption events (TDEs) are characterized by broad ( ∼ 10 4 kms − 1 ) emission lines and show a large diversity as well as di ff erent line profiles.
P. Charalampopoulos   +21 more
semanticscholar   +1 more source

A Model for the Possible Connection Between a Tidal Disruption Event and Quasi-periodic Eruption in GSN 069 [PDF]

open access: yesAstrophysical Journal, 2022
Quasi-periodic eruptions (QPEs) are found in the center of five galaxies, where a tidal disruption event (TDE)-like event has been reported in GSN 069, which occurred a couple of years before the QPEs.
Mengye Wang   +3 more
semanticscholar   +1 more source

Tidal Disruption Events [PDF]

open access: yesBrazilian Journal of Physics, 2013
The concept of stars being tidally ripped apart and consumed by a massive black hole (MBH) lurking in the center of a galaxy first captivated theorists in the late 1970s. The observational evidence for these rare but illuminating phenomena for probing otherwise dormant MBHs first emerged in archival searches of the soft X-ray ROSAT All-Sky Survey in ...
openaire   +2 more sources

Tidal Disruption and the Tale of Three Clusters [PDF]

open access: yes, 2008
Two pages, one figure, to appear in the proceedings of "Globular Clusters - Guides to Galaxies", eds. T.
De Marchi, Guido   +2 more
openaire   +2 more sources

Underluminous tidal disruptions

open access: yes, 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 a $t^{-5/3}$ decay.
openaire   +2 more sources

MEASUREMENT OF THE RATE OF STELLAR TIDAL DISRUPTION FLARES [PDF]

open access: yesThe Astrophysical Journal, 2014
We report an observational estimate of the rate of stellar tidal disruption flares (TDFs) in inactive galaxies, based on a successful search for these events among transients in galaxies using archival SDSS multi-epoch imaging data (Stripe 82). This search yielded 186 nuclear flares in galaxies, of which two are excellent TDF candidates. Because of the
Velzen, S. van, Farrar, G.R.
openaire   +4 more sources

A tidal disruption event coincident with a high-energy neutrino [PDF]

open access: yesNature Astronomy, 2020
Cosmic neutrinos provide a unique window into the otherwise hidden mechanism of particle acceleration in astrophysical objects. The IceCube Collaboration recently reported the likely association of one high-energy neutrino with a flare from the ...
R. Stein   +57 more
semanticscholar   +1 more source

Tidal Disruption of a Magnetized Star

open access: yesThe Astrophysical Journal
Abstract Tidal disruptions of stars by supermassive black holes in galactic centers (TDEs) are now being actively studied both theoretically and observationally. They are observed throughout the electromagnetic spectrum, from radio to gamma-rays. It is still unclear how the emission is produced, and in particular,
Pavel Abolmasov   +3 more
openaire   +2 more sources

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