1994-1996 Optical Outbursts of the BL Lac Object OJ 287
- 1 March 1997
- journal article
- research article
- Published by IOP Publishing in Publications of the Astronomical Society of the Pacific
- Vol. 109 (733) , 300
- https://doi.org/10.1086/133890
Abstract
VRI bands CCD photometric observations of the BL Lac object OJ 287 have been carried out during the period from 1994 October to 1196 May, with a mean interval of about a week. OJ 287 underwent two major outbursts during our observations. The first peak (V = 14.0 mag) occurred in the first half of 1994 November and faded out to 16.5 mag within 150 days. The second peak (V = 14.0 mag) was observed in the second half of 1995 December. The latter peak continued at nearly the same brightness until 1996 May. Such a long lasting outburst has never been reported for OJ 287. Color indices (V - R and V - I) remained nearly constant during the interval.Keywords
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