Multiband Comparative Study of Optical Microvariability in RL vs. RQ Quasars

Details Multiband Comparative Study of Optical Microvariability in RL vs. RQ Quasars Multiband Comparative Study of Optical Microvariability in RL vs. RQ Quasars

2009-07-14

arxiv.org/abs/0907.2405v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

17 pages, 14 figures, Accepted for publication in the Astronomical Journal

Scientific paper

We present the results of an optical multi-band (BVR) photometric monitoring program of 22 core-dominated radio-loud quasars (CRLQs) and 22 radio-quiet quasars (RQQs). The aim was to compare the properties of microvariability in both types of quasars. We detected optical microvariability in 5 RQQs and 4 CRLQs. Our results confirm that microvariability in RQQs may be as frequent as in CRLQs. In addition we compare microvariability duty cycles in different bands. Finally, the implications for the origin of the microvariations are briefly discussed.

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