Results 41 to 50 of about 486,507 (280)

Tidal disruption events and quasi‐periodic eruptions

open access: yesAstronomische Nachrichten, 2023
Tidal disruption events (TDEs) occur when a star passes close to a massive black hole so that the tidal forces of the black hole exceed the binding energy of a star and cause it to be ripped apart. Part of the matter will fall onto the black hole, causing a strong increase in luminosity.
Webb, Natalie A.   +6 more
openaire   +3 more sources

Tidal flares and rates from an archival cluster survey

open access: yesEPJ Web of Conferences, 2012
Tidal disruption flares (TDFs) are potent indicators of the co-evolution of galaxies and the massive black holes (MBHs) which they host in their nuclei, both in terms of the individual black holes revealed by tidal flares and in terms of the overall ...
Maksym W.P.
doaj   +1 more source

Challenges in the modeling of tidal disruption events lightcurves [PDF]

open access: yes, 2012
In this contribution, I review the recent developments on the modeling of the lightcurve of tidal disruption events. Our understanding has evolved significantly from the earlier seminal results that imply a simple power-law decay of the bolometric light ...
Lodato G., G. Lodato
core   +1 more source

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

Modelling tidal energy extraction in a depth-averaged coastal domain [PDF]

open access: yes, 2010
An extension of actuator disc theory is used to describe the properties of a tidal energy device, or row of tidal energy devices, within a depth-averaged numerical model This approach allows a direct link to be made between an actual tidal device and its
M.L.G. Oldfield   +12 more
core   +1 more source

Energy potential of a tidal fence deployed near a coastal headland [PDF]

open access: yes, 2013
Enhanced tidal streams close to coastal headlands appear to present ideal locations for the deployment of tidal energy devices. In this paper, the power potential of tidal streams near an idealized coastal headland with a sloping seabed is investigated ...
Borthwick, AG   +6 more
core   +1 more source

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

Tidal Disruptions of Close White Dwarf Binaries by Intermediate-mass Black Holes

open access: yesThe Astrophysical Journal
We perform a suite of numerical simulations of tidal disruption events, using smoothed particle hydrodynamics, for a close binary system consisting of two low-mass white dwarfs and an intermediate-mass nonspinning black hole.
Aryabrat Mahapatra   +3 more
doaj   +1 more source

AT 2023clx: The Faintest and Closest Optical Tidal Disruption Event Discovered in Nearby Star-forming Galaxy NGC 3799

open access: yesThe Astrophysical Journal Letters, 2023
We report the discovery of a faint optical tidal disruption event (TDE) in the nearby star-forming galaxy NGC 3799. Identification of the TDE is based on its position at the galaxy nucleus, a light curve declining as t ^−5/3 , a blue continuum with an ...
Jiazheng Zhu   +6 more
doaj   +1 more source

Abundance anomalies in tidal disruption events [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
9 pages, 7 figures, submitted to ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy