Candidates for a gamma-ray burster optical counterpart

Details Candidates for a gamma-ray burster optical counterpart Candidates for a gamma-ray burster optical counterpart

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aipc..101...64s&link_type=abstract

AIP Conference Proceedings, Volume 101, pp. 64-65 (1983).

Astronomy and Astrophysics

Astrophysics

1

X-Ray Sources, X-Ray Bursts, Near Infrared

Scientific paper

The small size of the 1928 optical error box for the 19 November 1978 gamma-ray burster (GRB) allows for a very deep search for the quisecent optical counterpart. We have used a CCD camera on the CTIO 4m telescope to search this field to a mB fainter than 25.0. We find three objects in the 1928 error box, including one which varies by over one magnitude in under a day (see Fig. 1). This variable object corresponds in position to Pedersen et al.'s object A. Since the disappearance of their object B is confirmed, there are two faint variables in the field. It is unclear which one (if either) of the variables is the true GRB counterpart. The details of our observations and their implications are contained in a letter submitted to the Astrophysical Journal.

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