GCN Circular 7405
Subject
GRB 080307: NIR upper limit
Date
2008-03-11T03:24:43Z (17 years ago)
From
Takeo Minezaki at U.of Tokyo/Astro <minezaki@mtk.ioa.s.u-tokyo.ac.jp>
T. Minezaki (IoA, Tokyo), P.A. Price (IfA, Hawaii), Y. Yoshii (IoA,
Tokyo), L. Cowie (IfA, Hawaii) and Y. Kakazu (IfA, Hawaii) report:
We observed the localisation of GRB 080307 with the MAGNUM telescope +
MIP dual-beam imager. We do not find any afterglow in the RIYJHK images
within the XRT error circle (GCN #7366), and at the Gemini-N i-band
candidate position (GCN #7369). We estimated the upper limits in JHK
based on flux calibration with a nearby 2MASS star as follows:
Filter t - t_GRB (hour) Limit (mag)
J +18.9 20.8
H +19.8 20.1
K +19.5 19.2
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