Journal article

Near infrared micro-variability of radio-loud quasars

M Whiting, A Oshlack, R Webster

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA | CSIRO PUBLISHING | Published : 2002

Abstract

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. © 2002 Astronomical Society of Australia.

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