GCN Circular 10465
Subject
GRB 100302A: Gemini-N OT confirmation
Date
2010-03-03T15:22:47Z (15 years ago)
From
Antonino Cucchiara at PSU <cucchiara@astro.psu.edu>
A. Cucchiara, D. B. Fox (PSU) report on behalf of
a larger collaboration:
"On March 3.40 UT we observed the field of GRB 100302A (Cummings et
al., GCN 10458) with the Gemini-N telescope and the GMOS spectrograph.
In our 300s i'-band acquisition image we clearly identify a source
inside the XRT refined error circle (Goad et al. 10460).
Using 3 USNO-B1 stars we calibrated our photometry and obtained
i' = 22.01 +- 0.05 mag
This value is significantly below the detection reported by
Huang et al. (GCN 10461) confirming that this is the afterglow
of GRB 100302A.
We also performed a single 1200s spectroscopic observation.
No absorption or emission features have been detected over
the 4000-9000A coverage of our spectrum.
We thank the Gemini staff for performing this observation,
in particular Andrew Stephens."