A Comparative Study of the Microvariability Properties in Radio Loud and Radio Quiet Quasars

de Diego, J. A.; Dultzin-Hacyan, D.; Ramirez, A.; Benitez, E.
Referencia bibliográfica

BL Lac Phenomenon, a conference held 22-26 June, 1998 in Turku, Finland, p. 123.

Fecha de publicación:
0
1999
Número de autores
4
Número de autores del IAC
0
Número de citas
0
Número de citas referidas
0
Descripción
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.