Tidal Disruption Encores [PDF]
The Astrophysical Journal LettersNuclear star clusters (NSCs), made up of a dense concentration of stars and the compact objects they leave behind, are ubiquitous in the central regions of galaxies surrounding the central supermassive black hole (SMBH).
Taeho Ryu +2 more
doaj +5 more sources
Shocks Power Tidal Disruption Events [PDF]
The Astrophysical Journal, 2023 Accretion of debris seems to be the natural mechanism to power the radiation emitted during a tidal disruption event (TDE), in which a supermassive black hole tears apart a star.
Taeho Ryu +4 more
doaj +4 more sources
Quasi-periodic X-ray eruptions years after a nearby tidal disruption event. [PDF]
NatureQuasi-periodic eruptions (QPEs) are luminous bursts of soft X-rays from the nuclei of galaxies, repeating on timescales of hours to weeks1–5. The mechanism behind these rare systems is uncertain, but most theories involve accretion disks around ...
Nicholl M +63 more
europepmc +3 more sources
Interpretation of the Observed Neutrino Emission from Three Tidal Disruption Events [PDF]
The Astrophysical Journal, 2023 Three Tidal Disruption Event candidates (AT2019 dsg , AT2019 fdr , and AT2019 aalc ) have been associated with high-energy astrophysical neutrinos in multimessenger follow-ups.
Walter Winter, Cecilia Lunardini
doaj +2 more sources
Stellar dynamics and tidal disruption events in galactic nuclei
EPJ Web of Conferences, 2012 The disruption of a star by the tidal field of a massive black hole is the final outcome of a chain of complex dynamical processes in the host galaxy. I introduce the “loss cone problem”, and describe the many theoretical and numerical challenges on the ...
Alexander T.
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A New Population of Mid-infrared-selected Tidal Disruption Events: Implications for Tidal Disruption Event Rates and Host Galaxy Properties [PDF]
The 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
Megan Masterson +16 more
doaj +2 more sources
Late-time Radio Flares in Tidal Disruption Events [PDF]
The 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, Tsvi Piran
doaj +2 more sources
Tidal Disruption Event Demographics with the Zwicky Transient Facility: Volumetric Rates, Luminosity Function, and Implications for the Local Black Hole Mass Function [PDF]
Astrophysical Journal Letters, 2023 We conduct a systematic tidal disruption event (TDE) demographics analysis using the largest sample of optically selected TDEs. A flux-limited, spectroscopically complete sample of 33 TDEs is constructed using the Zwicky Transient Facility over 3 yr ...
Yuhan Yao +28 more
semanticscholar +1 more source
Ubiquitous Late Radio Emission from Tidal Disruption Events [PDF]
Astrophysical Journal, 2023 We present radio observations of 23 optically discovered tidal disruption events (TDEs) on timescales of ∼500–3200 days postdiscovery. We detect nine new TDEs that did not have detectable radio emission at earlier times, indicating a late-time ...
Y. Cendes +11 more
semanticscholar +1 more source
Tormund's return: Hints of quasi-periodic eruption features from a recent optical tidal disruption event [PDF]
Astronomy & Astrophysics, 2023 Quasi-periodic eruptions (QPEs) are repeating thermal X-ray bursts associated with accreting massive black holes, the precise underlying physical mechanisms of which are still unclear.
E. Quintin +10 more
semanticscholar +1 more source