Optical variability of Quasi Stellar Objects

Optical variability of Quasi Stellar Objects

As many as 15 percent of the 96 QSOs studied can remain quiescent with respect to optical variability over the course of a decade. Within the QSO sample, at least 70 percent of the objects having an average magnitude greater than 17 are variable; a partial explanation of this strong correlation betw...

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Veröffentlicht in:Memorie della Società astronomica italiana 1983-01, Vol.54 (3), p.617-630
Hauptverfasser: Barbieri, C, Cristiani, S, NARDON, G, Romano, G
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container_title Memorie della Società astronomica italiana
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creator Barbieri, C
Cristiani, S
NARDON, G
Romano, G
description As many as 15 percent of the 96 QSOs studied can remain quiescent with respect to optical variability over the course of a decade. Within the QSO sample, at least 70 percent of the objects having an average magnitude greater than 17 are variable; a partial explanation of this strong correlation between variability and average magnitude may lie in the discovery that almost all of the bright objects are also radio-loud, while the faint portion of the sample is composed of both radio sources and objects found by solely optical means.
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title Optical variability of Quasi Stellar Objects
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