GCN Circular 21677
Subject
LIGO/VIRGO G298048: AAT/AAO spectroscopic observations of the GW counterpart candidate SSS17a/DLT17ck
Date
2017-08-24T15:31:25Z (7 years ago)
From
Igor Andreoni at Swinburne U of Tech <igor.andreoni@gmail.com>
I. Andreoni (Swinburne), J. Cooke (Swinburne) on behalf of OzGrav
and
C. Lidman, E. Elmer and T. Farrell (AAO)
We performed spectroscopic observations of the GW counterpart candidate
SSS17a/DLT17ck (Coulter et al., LVC GCN 21529; Allam et al., LVC GCN 21530;
Sheng Yang et al., LVC GCN 21531) with the AAOmega spectrograph at the 4m
Anglo-Australian Telescope.
The AAOmega spectrograph covers a wavelength range 3700-8800 AA with a
resolution R=1700.
We obtained 4 usable exposures of 600s each, starting at 2017-08-24.037 UT.
A preliminary analysis shows a red, largely featureless spectrum with no
obvious features other than host galaxy absorption lines.