Skip to main content
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 12865

Subject
GRB 120119A: Gemini-S redshift
Date
2012-01-19T06:01:56Z (12 years ago)
From
Antonino Cucchiara at UCSC/UCO Lick <acucchia@ucolick.org>
A. Cucchiara, J. X. Prochaska (UCSC/UCO Lick) 
report on behalf of a larger collaboration:

On January 19.20 UT (53 minutes after the BAT trigger) 
we observed the optical counterpart of GRB 120119A 
(Beardmore et al., GCN 12859) using GMOS-South on the 
Gemini-South 8-m telescope.  

Spectroscopic observation covering 4000-8000 Angstrom wavelength 
range reveals several absorption features, including AlIII1854, 
1862, FeII2586,2600, MnII2606, MgII2796,2803 at a common 
redshift of 1.728.
Also at least an intervening system is present at z=1.212
based on strong MgII2796 absorption features.

We therefore suggest this to be the redshift of GRB 120119A.

We thank the Gemini staff for performing this observation.
Looking for U.S. government information and services? Visit USA.gov