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ZAFAR , T

Last name: ZAFAR

First name: T

July 16, 2024 (v1)

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The host of GRB 171205A in 3D -- A resolved multiwavelength study of a rare grand-design spiral GRB host

Thöne, C.C de Ugarte Postigo, A Izzo, L

Long GRB hosts at z<1 are usually low-mass, low metallicity star-forming galaxies. Here we present the until now most detailed, spatially resolved study of the host of GRB 171205A, a grand-design barred spiral galaxy at z=0.036. Our analysis includes MUSE integral field spectroscopy, complemented by high spatial resolution UV/VIS HST imaging...

Uploaded on: July 18, 2024
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