Bibcode
de Diego, J. A.; Dultzin-Hacyan, D.; Ramirez, A.; Benitez, E.
Bibliographical reference
BL Lac Phenomenon, a conference held 22-26 June, 1998 in Turku, Finland, p. 123.
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1999
Citations
0
Refereed citations
0
Description
We have performed photometric optical observations of a sample of 16
radio loud and 16 radio quiet quasars. The aims were to confirm the
existence of microvariations in strictly radio quiet objects, and to
compare the properties of the variations in both types of quasars. The
samples were defined in such a way, that the only observational
difference between the two groups is the radio power. We present a new
observational and statistical procedure for searching for
microvariability, based on the Annalysis of Variance. We have found that
microvariations in radio quiet objects may be as frequent as in radio
loud sources.