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Optical Microvariability in Complete Samples of BL Lac Objects

Published online by Cambridge University Press:  19 July 2016

Jochen Heidt
Jochen Heidt*
Affiliation:
Landessternwarte Königstuhl, 69117 Heidelberg, Germany

Extract

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A radio-selected (1 Jy, Stickel et al., 1991) and a x-ray selected (EXOSAT, Giommi et al., 1991) sample of BL Lac objects was monitored by performing relative CCD photometry in order to examine the duty cycle, the dominant time-scales and the typical amplitudes of the variability. The samples consist of 34 and 11 objects, respectively.

Type
Poster Contributions: Variability
Information
Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 393
Copyright
Copyright © Kluwer 1994 

References

! Giommi, P., et al.: 1991, Ap. J. , 378, 77.Google Scholar
! Stickel, M., et al.: 1991, Ap. J. , 374, 431.Google Scholar