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Optical Microvariability of BlazarsWe present the results of optical differential photometry of five blazers [PKS0219+428 (3C66A), PKS 0235+164 (AO 0235+16), H0414+019, PKS 0851+202 (OJ 187) and QSO 1807+698 (3C 371)] that were observed on 7 nights between November 05, 1997 and December 29, 1998, using the B and the V band filters. We have detected microvariations in four blazers (3C66A, AO 0235+16, H0414+019, and OJ 287). In addition, the light curve of AO 0235+16 has displayed a mini-flare when the brightness of this source was decreasing. Night-to-night variations have also been detected in 3C66A, H0414+019, and OJ 287. The results of our observations are discussed in the framework of accretion disk phenomena (magnetic flares or hot spots in accretion disks) and jet phenomena (plasma instabilities in jets).
Document ID
20020045314
Acquisition Source
Marshall Space Flight Center
Document Type
Abstract
Authors
Ghosh, K. K. (NASA Marshall Space Flight Center Huntsville, AL United States)
Kim, Chulhee (Chonbuk National Univ. Chonju, Korea, Republic of)
Ramsey, B. D. (NASA Marshall Space Flight Center Huntsville, AL United States)
Soundararajaperumal, S. (Indian Inst. of Astrophysics Bangalore, India)
Six, N. Frank
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Astrophysics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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