The impact of tidal disruption events on galactic habitability [PDF]
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
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]
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]
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]
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]
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]
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]
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]
This version is accepted for publication in ApJ.
Ivanov, Pavel B. +1 more
openaire +2 more sources
Multi-messenger observations of Tidal Disruption Events
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

