Ubiquitous Late Radio Emission from Tidal Disruption Events

Y Cendes, E Berger, KD Alexander… - The Astrophysical …, 2024 - iopscience.iop.org
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 …

Fundamental scaling relationships revealed in the optical light curves of tidal disruption events

A Mummery, S van Velzen, E Nathan… - Monthly Notices of …, 2024 - academic.oup.com
We present fundamental scaling relationships between properties of the optical/UV light
curves of tidal disruption events (TDEs) and the mass of the black hole that disrupted the …

An off-axis relativistic jet seen in the long lasting delayed radio flare of the TDE AT 2018hyz

I Sfaradi, P Beniamini, A Horesh, T Piran… - Monthly Notices of …, 2024 - academic.oup.com
ABSTRACT The Tidal Disruption Event (TDE) AT 2018hyz exhibited a delayed radio flare
almost three years after the stellar disruption. Here, we report new radio observations of the …

Tidal Disruption Events through the Lens of the Cooling Envelope Model

N Sarin, BD Metzger - The Astrophysical Journal Letters, 2024 - iopscience.iop.org
The cooling envelope model for tidal disruption events (TDEs) postulates that while the
stellar debris streams rapidly dissipate their bulk kinetic energy (" circularize"), this does not …

The Peculiar Radio Evolution of the Tidal Disruption Event ASASSN-19bt

CT Christy, KD Alexander, R Margutti… - The Astrophysical …, 2024 - iopscience.iop.org
We present detailed radio observations of the tidal disruption event (TDE) ASASSN-19bt/AT
2019ahk, obtained with the Australia Telescope Compact Array, the Atacama Large …

Two-component off-axis jet model for radio flares of tidal disruption events

Y Sato, K Murase, M Bhattacharya, JA Carpio… - Physical Review D, 2024 - APS
Recently, radio emission from tidal disruption events (TDEs) has been observed from
months to years after the optical discovery. Some of the TDEs including ASASSN-14ae …

AT2023vto: An Exceptionally Luminous Helium Tidal Disruption Event from a Massive Star

H Kumar, E Berger, D Hiramatsu… - The Astrophysical …, 2024 - iopscience.iop.org
We present optical/UV observations and the spectroscopic classification of the transient
AT2023vto as a tidal disruption event (TDE) at z= 0.4846. The spectrum is dominated by a …

Eight Years of Light from ASASSN-15oi: Towards Understanding the Late-time Evolution of TDEs

A Hajela, KD Alexander, R Margutti… - arXiv preprint arXiv …, 2024 - arxiv.org
We present the results from an extensive follow-up campaign of the Tidal Disruption Event
(TDE) ASASSN-15oi spanning $\delta t\sim 10-3000$ d, offering an unprecedented window …

Searching for Radio Transients with Inverted Spectra in Epoch 1 of VLASS and VCSS, and Identification of a Sample of Candidate Relativistic Nuclear Transients

Y Chen, BM Gaensler, T Clarke, W Peters… - arXiv preprint arXiv …, 2024 - arxiv.org
For radio transients, an inverted spectrum (defined as $\alpha> 0$ for a power law spectrum
$ S_ {\nu}\propto\nu^{\alpha} $) constrains physical properties, which in principle can be a …

eRO-ExTra: eROSITA extragalactic non-AGN X-ray transients and variables in eRASS1 and eRASS2

I Grotova, A Rau, M Salvato, J Buchner… - Astronomy & …, 2025 - aanda.org
Aims. The eROSITA telescope aboard the Spectrum Roentgen Gamma (SRG) satellite
provides an unprecedented opportunity to explore the transient and variable extragalactic X …