GCN Circular 9267
Subject
GRB 090426: Near infrared observation with ISLE at OAO
Date
2009-04-26T23:50:04Z (15 years ago)
From
Michitoshi Yoshida at Okayama Astrophysical Obs <yoshida@oao.nao.ac.jp>
M. Yoshida, D. Kuroda, K. Yanagisawa, Y. Shimizu, S. Nagayama,
H. Toda (OAO, NAOJ) and N. Kawai (Tokyo Tech) report on behalf
of the MITSuME collaboration:
We detected the optical afterglow of GRB 090426 (Cummings et al.
GCN 9254; Xin et al. GCN 9255; Oates et al. GCN 9265; Yoshida et
al. GCN 9266) in near-infrared bands with the near-infrared
camera ISLE attached to the 188cm telescope of Okayama
Astrophysical Observatory.
Photometric results are listed below. We used 2MASS stars in the
FOV of ISLE for flux calibration.
Band #PDAY MID-UT T-EXP mag error
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J 0.03534 13:39:41 720.0 18.6 0.2
H 0.03960 13:45:49 720.0 18.0 0.2
Ks 0.04336 13:51:13 720.0 17.6 0.2
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