GB6 J1058+5628: A NEW QUASI-PERIODIC BL LAC OBJECT FROM THE ASIAGO PLATE ARCHIVE
Journal Article
·
· Astronomical Journal (New York, N.Y. Online)
- Physics Department, University of Roma La Sapienza, Piazzale A. Moro 2, I-00185 Roma (Italy)
We present the historic photographic light curves of three little known blazars (two BL Lac objects and one FSRQ), GB6 J1058+5628, GB6 J1148+5254, and GB6 J1209+4119, spanning a time interval of about 50 years, mostly built using the Asiago plate archive. All objects show evident long-term variability, over which short-term variations are superposed. One source, GB6 J1058+5628, showed a marked quasi-periodic variability of 1 mag on timescale of about 6.3 years, making it one of the few BL Lac objects with a quasi-periodic behavior.
- OSTI ID:
- 21443076
- Journal Information:
- Astronomical Journal (New York, N.Y. Online), Vol. 139, Issue 6; Other Information: DOI: 10.1088/0004-6256/139/6/2425; ISSN 1538-3881
- Country of Publication:
- United States
- Language:
- English
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