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The Optical Afterglow of GRB 971214: R and J Photometry

A. Diercks·E. W. Deutsch·F. J. Castander·C. Corson·G. Gilmore·D. Q. Lamb·E. L. Turner·R. Wyse
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Abstract

We present an R-band and J-band photometry of an optical transient which is likely to be associated with the gamma-ray burst event GRB 971214. Our first measurement took place 13 hours after the gamma-ray event. The brightness decayed with a power-law exponent alpha = -1.20 +- 0.02, which is similar to those of GRB 970228 and GRB 970508 which had exponents of alpha = -1.10 +- 0.04 and alpha = -1.141 +- 0.014 respectively. The transient decayed monotonically during the first four days following the gamma-ray event in contrast with the optical transient associated with GRB 970508 which increased in brightness, peaking two days after the burst, before settling to a power-law decay.

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A. Diercks, E. W. Deutsch, F. J. Castander, C. Corson, G. Gilmore, D. Q. Lamb, E. L. Turner, R. Wyse. 1998-09-15. The Optical Afterglow of GRB 971214: R and J Photometry. https://doi.org/10.1086/311540

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