Near-infrared micro-variability of radio-loud quasars

Details Near-infrared micro-variability of radio-loud quasars Near-infrared micro-variability of radio-loud quasars

2001-11-08

arxiv.org/abs/astro-ph/0111171v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication in P.A.S.A., 9 pages including 5 figures

Scientific paper

10.1071/AS01083

We observed three AGN from the Parkes Half-Jansky Flat-spectrum Sample at near-infrared (NIR) wavelengths to search for micro-variability. In one source, the blue quasar PKS 2243-123, good evidence for NIR micro-variability was found. In the other two sources, PKS 2240-260 and PKS 2233-148, both BL Lacertae objects, no such evidence of variability was detected. We discuss the implications of these observations for the various mechanisms that have been proposed for micro-variability.

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