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GCN Circular 9670

Subject
GRB 090715B - Liverpool Telescope Optical Afterglow Candidate
Date
2009-07-16T00:25:24Z (15 years ago)
From
Carole Mundell at ARI, JMU,Liverpool <cgm@astro.livjm.ac.uk>
R.J. Smith, C.G. Mundell, A. Melandri, I.A. Steele, S. Kobayashi, C.J. 
Mottram, D.F. Bersier, Z. Cano (Liverpool JMU), A. Gomboc (Ljubljana), C. 
Guidorzi (INAF-OAB) report:

"The 2-m Liverpool Telescope robotically followed up GRB090715
(SWIFT trigger 357512; Vetere et al. GCN 9668) beginning 11.07 min after 
the GRB trigger time.

An uncatalogued course is detected at:

 	16 45 21.67 +44 50 21 (J2000) (positional uncertainty +/-1")

         with magnitude r' = 19.6 +/- 0.2 mag (wrt SDSS) at T=11.53 min.

Observations and analysis are ongoing.

This message may be cited"
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