The 65 Day Period in 3C 66A during Bright State

Bibcode
1999ApJ...521..561L
DOI
10.1086/307599
Lainela, M.; Takalo, L. O.; Sillanpää, A.; Pursimo, T.; Nilsson, K.; Katajainen, S.; Tosti, G.; Fiorucci, M.; Luciani, M.; Villata, M.; Raiteri, C. M.; de Francesco, G.; Sobrito, G.; Benítez, E.; Dultzin-Hacyan, D.; de Diego, J. A.; Turner, G. W.; Robertson, J. W.; Honeycutt, R. K.
Referencia bibliográfica

The Astrophysical Journal, Volume 521, Issue 2, pp. 561-564.

Fecha de publicación:
8
1999
Revista
The Astrophysical Journal
Número de autores
19
Número de autores del IAC
0
Número de citas
85
Número de citas referidas
76
Descripción
Historically, 3C 66A has been considered a relative quiescent blazar. For that reason, 3C 66A was selected as a comparison source for OJ 287 in the OJ-94 project. However, after more detailed observation it turns out that the variability of 3C 66A itself is very interesting. We have analyzed the entire project data set of 3C 66A from fall of 1993 to spring of 1998 by using structure function analysis, Deeming periodograms, Scargle periodograms, and the folded light curves. Here we present the first preliminary evidence for the 65 day period in 3C 66A observed during the bright state. Our analysis indicates that this period is slowly slowing down. We will also discuss the possible physical mechanism producing the observed periodicity.
Tipo
Con árbitro
Galaxias
Fotometría

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