Possible optical transient in Triangulum and its relation to the gamma-ray burst sources

Details Possible optical transient in Triangulum and its relation to the gamma-ray burst sources Possible optical transient in Triangulum and its relation to the gamma-ray burst sources

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...225..411h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 225, no. 2, Nov. 1989, p. 411-416.

Astronomy and Astrophysics

Astrophysics

7

Gamma Ray Bursts, Variable Stars, Asteroids, Charge Coupled Devices, Optical Properties

Scientific paper

The serendipitous discovery of a possible optical transient near Beta Trianguli is reported. Bright star-like plate faults such as this (about 6 mag above emulsion fog) are very unlikely and have never been observed during the examination of about 5000 sq cm of archival plates. Detailed analysis of the image density profile confirms that the new object is essentially identical to surrounding stars. All kinds of possible nonastrophysical explanation for the optical flash are reviewed and it is concluded that a terrestrial or artificial origin is very improbable. Finally, this possible optical transient is discussed in the framework of the current search for optical counterparts to gamma-gay burst sources.

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