activity
20242026
most citedSpectroscopic observations of progenitor activity 100 days before a Type Ibn supernova

19 citations · 57 across the 15 of their papers we have counts for

collaborators
Showing 2026Show all

5 papers · 1 filter

astro-ph.HE2026

A 32-day Quasi-periodic Modulation in the Post-peak Light Curve of the Superluminous Supernova SN 2018bsz

Aiswarya Sankar. K, Ting-Wan Chen, Seán J. Brennan +8

Recurrent structure in supernova (SN) light curves may reveal physical clocks associated with central-engine dynamics, binary orbital motion, or interaction with structured circums…

astro-ph.HE2026

Low-hard to high-soft spectral state transitions in the faintest early-X-ray-detected optical tidal disruption event TDE 2025aarm

Pietro Baldini, Arne Rau, Andrea Merloni +11

We report the X-ray and optical spectroscopic properties of TDE 2025aarm, the second closest tidal disruption event (TDE) discovered to date. The proximity of this source, combined…

astro-ph.HE2026

NLTE Spectral Modelling of the Nearby Stripped-Envelope Supernova 2024ehs

Wilmer Sand Hellman, Seán J. Brennan, Stan Bartmentloo +7

We present a detailed study of the Type IIb supernova 2024ehs, discovered in March 2024 in the nearby galaxy NGC 3443 at a distance of Mpc. Using photometric and spec…

astro-ph.SR2026

Nebular Phase Evolution of SN 2023ixf (I): From Circumstellar Infrared Echo to the onset of in-situ Dust Formation in a Type II Supernova

Avinash Singh, S. Goto, A. Sarangi +58

We present optical and near-infrared (NIR) photometric and spectroscopic observations of the Type II supernova SN 2023ixf spanning 150 to 750 days, combined with published early-ti…

astro-ph.HE2026

SN 2023zcu: A Type IIP SN with Early Flash Features

Monalisa Dubey, Kuntal Misra, Géza Csörnyei +51

We present a detailed photometric and spectroscopic analysis of the Type IIP supernova SN~2023zcu, which exploded in the galaxy NGC~2139 (redshift = 0.006). SN~2023zcu exhibits…