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GCN Circular 2971

GRB 050123 : I-band follow-up observation
2005-01-24T12:39:42Z (19 years ago)
Kuiyun Huang at IANCU <>
GRB 050123 : I-band follow-up observation

Z.Y. Lin, K.Y. Huang, W.H. Ip (NCU), Y. Urata, T. Tamagawa (RIKEN),
Y. Qiu (BAO), Y.Q. Lou(THCA) on behalf of the East Asian collaboration

"We have observed the GRB 050123 error range reported by Hurley et
al.(GCN 2966) using Lulin 1-m telescope at Taiwan. Our observations
with I band started from 15.87 UT to 16.72 UT (~5.49 to 5.79 hours
after the burst). These images cover 70 % error region of GRB 050123
(Hurley et al., GCN 2966).  Comparing DSS-II image, no candidate was
detected in our I band images. The average of limiting magnitude is
about 19 (S/N=3, compared with USNO-B1 I magnitude)."

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