Quasi-periodic X-ray eruptions years after a nearby tidal disruption event

M Nicholl, DR Pasham, A Mummery, M Guolo… - Nature, 2024 - nature.com
Quasi-periodic eruptions (QPEs) are luminous bursts of soft X-rays from the nuclei of
galaxies, repeating on timescales of hours to weeks,,,–. The mechanism behind these rare …

Delayed appearance and evolution of coronal lines in the TDE AT2019qiz

P Short, A Lawrence, M Nicholl, M Ward… - Monthly Notices of …, 2023 - academic.oup.com
Tidal disruption events (TDEs) occur when a star gets torn apart by a supermassive black
hole as it crosses its tidal radius. We present late-time optical and X-ray observations of the …

Systematic light-curve modelling of TDEs: statistical differences between the spectroscopic classes

M Nicholl, D Lanning, P Ramsden… - Monthly Notices of …, 2022 - academic.oup.com
With the sample of observed tidal disruption events (TDEs) now reaching several tens,
distinct spectroscopic classes have emerged: TDEs with only hydrogen lines (TDE-H), only …

Cooling Envelope Model for Tidal Disruption Events

BD Metzger - The Astrophysical Journal Letters, 2022 - iopscience.iop.org
We present a toy model for the thermal optical/UV/X-ray emission from tidal disruption
events (TDEs). Motivated by recent hydrodynamical simulations, we assume that the debris …

AT 2020wey and the class of faint and fast tidal disruption events

P Charalampopoulos, M Pursiainen… - Astronomy & …, 2023 - aanda.org
We present an analysis of the optical and ultraviolet properties of AT 2020wey, a faint and
fast tidal disruption event (TDE) at 124.3 Mpc. The light curve of the object peaked at an …

Scary Barbie: An Extremely Energetic, Long-Duration Tidal Disruption Event Candidate Without a Detected Host Galaxy at z= 0.995

BM Subrayan, D Milisavljevic… - The Astrophysical …, 2023 - iopscience.iop.org
We report multiwavelength observations and characterization of the ultraluminous transient
AT 2021lwx (ZTF20abrbeie; aka" Barbie") identified in the alert stream of the Zwicky …

Tidal Disruption Events from Stripped Stars

B Mockler, M Gallegos-Garcia, Y Götberg… - The Astrophysical …, 2024 - iopscience.iop.org
Observations of tidal disruption events (TDEs) show signs of nitrogen enrichment
reminiscent of other astrophysical sources such as active galactic nuclei and star-forming …

Partial, zombie, and full tidal disruption of stars by supermassive black holes

CJ Nixon, ER Coughlin, PR Miles - The Astrophysical Journal, 2021 - iopscience.iop.org
We present long-duration numerical simulations of the tidal disruption of stars modeled with
accurate stellar structures and spanning a range of pericenter distances, corresponding to …

Is the High-energy Neutrino Event IceCube-200530A Associated with a Hydrogen-rich Superluminous Supernova?

T Pitik, I Tamborra, CR Angus… - The Astrophysical …, 2022 - iopscience.iop.org
Abstract The Zwicky Transient Facility follow-up campaign of alerts released by the IceCube
Neutrino Observatory has led to the likely identification of the transient AT2019fdr as the …

The curious case of ASASSN-20hx: A slowly evolving, UV-and X-ray-luminous, ambiguous nuclear transient

JT Hinkle, TWS Holoien, BJ Shappee… - The Astrophysical …, 2022 - iopscience.iop.org
We present observations of ASASSN-20hx, a nearby ambiguous nuclear transient (ANT)
discovered in NGC 6297 by the All-Sky Automated Survey for Supernovae (ASAS-SN). We …