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MELANDRI , A

Last name: MELANDRI

First name: A

March 9, 2023 (v1)

Publication

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The first JWST spectrum of a GRB afterglow: No bright supernova in observations of the brightest GRB of all time, GRB 221009A

Levan, A.J Lamb, G.P Schneider, B

We present JWST and Hubble Space Telescope (HST) observations of the afterglow of GRB 221009A, the brightest gamma-ray burst (GRB) ever observed. Observations obtained with NIRSPEC (0.6-5.5 micron) and MIRI (5-12 micron) 12 days after the burst are the first mid-IR spectroscopy performed for a GRB. Assuming the underlying slope is that of a...

Uploaded on: March 25, 2023
November 2, 2023 (v1)

Publication

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Multi-band analyses of the bright GRB~230812B and the associated SN2023pel

Hussenot-Desenonges, T Wouters, T Guessoum, N

GRB~230812B is a bright and relatively nearby ($z =0.36$) long gamma-ray burst that has generated significant interest in the community and therefore has been subsequently observed over the entire electromagnetic spectrum. We report over 80 observations in X-ray, ultraviolet, optical, infrared, and sub-millimeter bands from the GRANDMA (Global...

Uploaded on: November 25, 2023