Quasi-Periodicities at Year Time Scales in Blazars
Date Issued
2017
Author(s)
Abstract
We examine the 2008-2016 gamma-ray and optical light curves of a number of bright Fermi blazars. In a fraction of them, the periodograms show possible evidence of quasi-periodicities related in the two bands. This coincidence strengthens their physical meaning. Comparing with results from the periodicity search of quasars, the presence of quasi-periodicities in blazars suggests that the basic condition for its observability is related to the relativistic jet in the observer direction, but the overall picture remains uncertain.
Coverage
New Frontiers in Black Hole Astrophysics
All editors
Gomboc, Andreja
Volume
vol. 12, S324
Start page
180
Conferenece
New Frontiers in Black Hole Astrophysics
Conferenece place
Ljubljana, Slovenia
Conferenece date
12-16 September, 2016
Issn Identifier
1743-9213
Ads BibCode
2017IAUS..324..180C
Rights
open.access
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