Optical Behavior of OI:090.4 OF:038 0109+22 and PKS:0735+178

Details Optical Behavior of OI:090.4 OF:038 0109+22 and PKS:0735+178 Optical Behavior of OI:090.4 OF:038 0109+22 and PKS:0735+178

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988acasn..29...24x&link_type=abstract

Acta Astronomica Sinica, Vol.29:1, P. 24, 1988

Astronomy and Astrophysics

Astronomy

Scientific paper

In this paper, the CCD area system photometric data for 4 BL Lac objects are given. The main results are following: (1) Three short optical variability timescales are: 100 min for OI 090.4 with ΔB = 0.3 mag (±0.09 mag), 120 min for OF 038 with ΔB = 0.28 mag (±0.03 mag), 2.5 hours for PKS 0735+178 with ΔB = 0.3 mag (±0.09 mag). (2) 0109+22 is also a violently variable, the amplitude for optical variability can excess 0.68 mag within ≡70 min. (3) The evidence of the correlation between B-V and B have been obtained for OI 090.4 and PKS 0735+178. Using the new accretion disk theory, the authors discussed the properties of the central object of PKS 0735+178. The results show tat the central object is a Kerr black hole.

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