[vsnet-grb-info 5894] GRB 080330: NOT redshift

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  7544
SUBJECT: GRB 080330: NOT redshift
DATE:    08/03/30 07:19:56 GMT
FROM:    Daniele Malesani at Niels Bohr Inst,Dark Cosmology Center  <malesani at astro.ku.dk>

Daniele Malesani, Johan P.U. Fynbo (DARK), Pall Jakobsson (Univ. 
Hertfordshire), Paul M. Vreeswijk (DARK), Sami-Matias Niemi (NOT), 
report on behalf of a larger observation:

We observed the afterglow of GRB 080330 (Mao et al., GCN 7537) with the 
NOT equipped with ALFOSC. We clealy detect the optical counterpart 
(Klotz et al., GCN 7536; Mao et al., GCN 7537, Schaefer & Guver, GCN 
7538; Gomboc et al., GCN 7539; Bloom & Starr, GCN 7542). We measure R = 
17.55 on March 30.17596 UT (32.1 min after the GRB), assuming R = 17.61 
for the USNO star 1206-0188558 at RA = 11:16:57.541, Dec = +30:37:51.51.

A 1800 s spectrum with ALFOSC was acquired starting 46 min after the 
GRB, covering the range 3700-8000 AA. A preliminary reduction of the 
data reveals absorption features in the spectrum from C IV, Zn II, Fe 
II, and Mg II at redshift z=1.51.

We acknowledge excellent support from the NOT staff