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astro-ph1997
Very rapid optical variability of PKS 2155-304
S. Paltani, T. J. -L. Courvoisier, A. Blecha +1
We have performed an optical observation campaign on PKS 2155-304, whose aim was to determine the variability properties of this object on very short time scales in several photome…
astro-ph1997
Rest-frame variability of quasars and Seyfert galaxies in the ultraviolet: Constraints on the discrete-event models
Stephane Paltani, Thierry J. -L. Courvoisier
We determine the variability-luminosity relationship of quasars and Seyfert galaxies in the rest frame of the objects using IUE spectra. We find that the variability decreases with…