Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987acasn..28...24x&link_type=abstract
(Acta Astronomica Sinica, vol. 28, 1988, p. 24-32) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 12, Sept. 1988, p.
Astronomy and Astrophysics
Astronomy
Active Galactic Nuclei, Astronomical Photometry, Bl Lacertae Objects, Extragalactic Radio Sources, Black Holes (Astronomy), Color-Magnitude Diagram, Tables (Data)
Scientific paper
Results are presented from two color (B and V) photometry of 4 BL Lac objects, OI 090.4, OF 038, 0109+22, and PKS 0735+178. The light variation characteristics and color-magnitude correlation of these objects are discussed. The results indicate that short timescale variability in BL Lac objects severely constrains the properties of their central core and their emission mechanism.
Hao Peng-Jiu
Li Kai-Hua
Lu Ru-Wei
Xie Guang-Zhong
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