SIMBAD references

2024MNRAS.527L..47C - Mon. Not. R. Astron. Soc., 527, L47-L53 (2024/January-1)

AT2023fhn (the Finch): a luminous fast blue optical transient at a large offset from its host galaxy.

CHRIMES A.A., JONKER P.G., LEVAN A.J., COPPEJANS D.L., GASPARI N., GOMPERTZ B.P., GROOT P.J., MALESANI D.B., MUMMERY A., STANWAY E.R. and WIERSEMA K.

Abstract (from CDS):

Luminous fast blue optical transients (LFBOTs) - the prototypical example being AT 2018cow - are a rare class of events whose origins are poorly understood. They are characterized by rapid evolution, featureless blue spectra at early times, and luminous X-ray and radio emission. LFBOTs thus far have been found exclusively at small projected offsets from star-forming host galaxies. We present Hubble Space Telescope, Gemini, Chandra, and Very Large Array observations of a new LFBOT, AT 2023fhn. The Hubble Space Telescope data reveal a large offset (>3.5 half-light radii) from the two closest galaxies, both at redshift z ∼ 0.24. The location of AT 2023fhn is in stark contrast with previous events, and demonstrates that LFBOTs can occur in a range of galactic environments.

Abstract Copyright: © The Author(s) 2023. Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): supernovae: individual: AT 2023fhn - transients: supernovae - transients: tidal disruption events

Simbad objects: 15

Full paper

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