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Intraday Optical Variability of S5 0716+714

Published online by Cambridge University Press:  05 March 2013

Roberto Nesci ,
Enrico Massaro  and
Franco Montagni
Roberto Nesci*
Affiliation:
Department of Physics, University La Sapienza, P.le Aldo Moro 2, I-00185, Roma, Italy
Enrico Massaro
Affiliation:
Department of Physics, University La Sapienza, P.le Aldo Moro 2, I-00185, Roma, Italy
Franco Montagni
Affiliation:
Department of Physics, University La Sapienza, P.le Aldo Moro 2, I-00185, Roma, Italy
*
Roberto.Nesci@uniroma1.it
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Abstract

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We present an optical intraday variability (IDV) study of S5 0716+714 carried out over 52 nights. The source showed detectable variations (>0.05 mag) in 80% of the nights. Typical variation rates of 0.02 mag/hour have been found to last on average 4 hours, with the average rising rate faster than the decreasing one. A maximum rising rate of 0.16 mag/hour has been observed. If the luminosity variation is due to jittering in the jet direction, a comoving dθ/dt rate of ∼100 arcsec/hour is required, assuming for the jet θ ∼ 7° and Γ ∼ 14.

Keywords

BL Lacertae objects: individual (S5 0716+714)
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 19 , Issue 1 , 2002 , pp. 143 - 146
Copyright
Copyright © Astronomical Society of Australia 2002

References

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