Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apjs...80..683x&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 80, no. 2, June 1992, p. 683-699. Research supported by NNSFC and
Astronomy and Astrophysics
Astronomy
66
Astronomical Models, Astronomical Photometry, Bl Lacertae Objects, Light Curve, Charge Coupled Devices, Radio Sources (Astronomy), Variability
Scientific paper
The results of monitoring, over a period of 1 yr, a sample of 14 BL Lac
objects in BVRI bands are presented. Seven sources exhibit short
time-scale variability, and five sources exhibit medium time-scale
variability with large amplitude. The evidence of relativistic beaming
and accretion disks for 10 BL Lac objects is discussed.
Cheng F.-Z.
Fan Junhui H.
Li Kwok Hung
Liu Keh-Fei
Lu Ru-Wei
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