Results 61 to 70 of about 1,263,228 (294)

The impact of tidal disruption events on galactic habitability [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACTTidal disruption events (TDEs) are characterized by the emission of a short burst of high-energy radiation. We analyse the cumulative impact of TDEs on galactic habitability using the Milky Way as a proxy. We show that X-rays and extreme ultraviolet radiation emitted during TDEs can cause hydrodynamic escape and instigate biological damage.
Pacetti, E   +4 more
openaire   +5 more sources

Optical Appearance of Eccentric Tidal Disruption Events

open access: yes, 2023
Stars approaching supermassive black holes can be tidally disrupted. Despite being expected to emit X-rays, tidal disruption events (TDEs) have been largely observed in optical bands, which is poorly understood.
Fangyi (Fitz) Hu   +2 more
core   +2 more sources

Signatures of Tidal Disruption of the Hercules Ultrafaint Dwarf Galaxy [PDF]

open access: yesAstrophysical Journal
The Hercules ultrafaint dwarf galaxy (UFD) has long been hypothesized to be tidally disrupting, yet no conclusive evidence has been found for tidal disruption owing partly to difficulties in identifying Hercules member stars.
Xiaowei 筱葳 Ou 欧   +8 more
semanticscholar   +1 more source

Rapid Accretion State Transitions following the Tidal Disruption Event AT2018fyk [PDF]

open access: yesAstrophysical Journal, 2021
Following a tidal disruption event (TDE), the accretion rate can evolve from quiescent to near-Eddington levels and back over timescales of months to years.
T. Wevers   +9 more
semanticscholar   +1 more source

A DARK YEAR FOR TIDAL DISRUPTION EVENTS [PDF]

open access: yesThe Astrophysical Journal, 2015
Accepted to ApJ. Updated version adds new figure (Figure 9). 11 pages, 9 figures.
James Guillochon, Enrico Ramirez-Ruiz
openaire   +2 more sources

Seventeen Tidal Disruption Events from the First Half of ZTF Survey Observations: Entering a New Era of Population Studies [PDF]

open access: yesAstrophysical Journal, 2020
While tidal disruption events (TDEs) have long been heralded as laboratories for the study of quiescent black holes, the small number of known TDEs and uncertainties in their emission mechanism have hindered progress toward this promise.
S. Velzen   +36 more
semanticscholar   +1 more source

Radio observations of the tidal disruption event AT2020opy: a luminous non-relativistic outflow encountering a dense circumnuclear medium [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2022
Tidal disruption events (TDEs) occur when a star passes too close to a supermassive black hole and is destroyed by tidal gravitational forces. Radio observations of TDEs trace synchrotron emission from outflowing material that may be ejected from the ...
A. Goodwin   +11 more
semanticscholar   +1 more source

Tidal Disruption Events from Eccentric Orbits and Lessons Learned from the Noteworthy ASASSN-14ko [PDF]

open access: yesAstrophysical Journal, 2022
Stars grazing supermassive black holes (SMBHs) on bound orbits may survive tidal disruption, causing periodic flares. Inspired by the recent discovery of the periodic nuclear transient ASASSN-14ko, a promising candidate for a repeating tidal disruption ...
C. Liu 刘   +7 more
semanticscholar   +1 more source

A New Model of a Tidally Disrupted Star [PDF]

open access: yesThe Astrophysical Journal, 2001
This version is accepted for publication in ApJ.
Ivanov, Pavel B.   +1 more
openaire   +2 more sources

Multi-messenger observations of Tidal Disruption Events

open access: yes, 2023
Using the Zwicky Transient Facility (ZTF) and other observatories, we have identified three candidate Tidal Disruption Events (TDEs) in spatial and temporal coincidence with high-energy neutrinos detected by IceCube: AT2019dsg, AT2019fdr and AT2019aalc ...
Reusch, Simeon
core   +1 more source

Home - About - Disclaimer - Privacy