OTS 1809+314 and the gamma-ray burst GB 790325b

Details OTS 1809+314 and the gamma-ray burst GB 790325b OTS 1809+314 and the gamma-ray burst GB 790325b

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...336..889h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 336, Jan. 15, 1989, p. 889-895. Research supported by the Los Alamos Nation

Astronomy and Astrophysics

Astrophysics

18

Astronomical Photometry, Gamma Ray Bursts, Charge Coupled Devices, Image Analysis, Neutron Stars, Ubv Spectra

Scientific paper

Deep CCD images of the field containing the recurring Optical Transient Source (OTS) 1809+314 recently discovered on archival plates of the Sonneberg Observatory are presented. At the position of OTS 1809+314 no optical counterpart brighter than V = 24.0-24.5, r(Gunn) = 22.0-22.5, and I = 22.0-22.5 is found. In the zero proper motion limit our observations place severe constraints on possible quiescent counterparts. There is no compelling evidence to suggest an association between the historical optical transient source and the gamma-ray burst GB 790325b located about 5 arcmin to the east of OTS 1809+314.

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