BVRI photometry of 7 BL Lac objects (Bai+ 1998)

Details BVRI photometry of 7 BL Lac objects (Bai+ 1998) BVRI photometry of 7 BL Lac objects (Bai+ 1998)

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ycat..41320083b&link_type=abstract

VizieR On-line Data Catalog: J/A+AS/132/83. Originally published in: 1998A&AS..132...83B

Physics

Bl Lac Objects, Photometry: Ubvri

Scientific paper

Seven BL Lac objects have been photometrically observed in an effort to study the difference of optical intraday variability between the radio-selected BL Lac objects (RBLs) and X-ray-selected BL Lac objects (XBLs). The objects we observed are selected arbitrarily. They are four RBLs, PKS 0735+178, PKS 0754+101, OJ 287 and BL Lac, and three XBLs, H 0323+022, H 0548-322 and H 2154-304. During the observation all of them exhibited microvariation, and H 0323+022 and H 0548-322 sometimes showed brightness oscillation. PKS 0735+178 and BL Lac were in their faint states and not very active. It seems that RBLs do not show microvariability more frequently than XBLs. (1 data file).

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