D2 Article in a professional compilation book

Tentative classification of the optical transient AT 2025afvr as a featureless tidal disruption event.




AuthorsCharalampopoulos, Panos

Publication year2025

Book title Transient name server: AstroNote

Series titleTransient name server: AstroNote

Number in series340

Publication's open availability at the time of reportingOpen Access

Publication channel's open availability Open Access publication channel

Web address https://www.wis-tns.org/astronotes/astronote/2025-340


Abstract

We present a NOT/ALFOSC optical spectrum of the rising optical transient AT 2025afvr. The spectrum is blue and featureless. There are no evident host galaxy lines and no spectroscopic redshift for the host. The host galaxy is faint and there is not a clear resolved nucleus, but the transient appears central. Based on the spectrum, the location of the transient, and its persistent blue optical colours (g-r ~ -0.4), it is possible that AT 2025afvr is a featureless tidal disruption event, however another type of transient cannot be ruled-out yet. Further follow-up to determine the nature of the transient is encouraged. Until then, we classify the transient as "Other".



Last updated on 23/02/2026 02:41:03 PM