Bibcode
Kidger, M. R.; Martín-Luis, Fabiola; Narbutis, Donatas
Bibliographical reference
New Astronomy Reviews, Volume 48, Issue 5-6, p. 509-512.
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4
2004
Journal
Citations
2
Refereed citations
1
Description
We report the results of optical monitoring of a sample of AGNs carried
out in summer 2002. While rapid optical variability is a well-known
aspect of blazar activity, there have been fewer studies of possible
rapid variations in the spectrum, although some studies suggest that
variations may exist even on scales of hours and less. Six of fourteen
objects studied show some degree of variability of SED on timescales
from 24 h to a few days. However, the γ-ray emitter 3C454.3 shows
large light curve amplitude during the period of observations, but no
spectral variability. Sources such as BL Lac and Mark 501 show constant
spectral shape in this study.