The active galaxy 3C 66A: A variable source of very high-energy gamma-rays

Authors
Neshpor, YI Stepanyan, AA Kalekin, OR Zhogolev, NA Fomin, VP Chalenko, NN Shitov, VG
Citation
Yi. Neshpor et al., The active galaxy 3C 66A: A variable source of very high-energy gamma-rays, ASTRON REP, 44(10), 2000, pp. 641-646
Citations number
23
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY REPORTS
ISSN journal
10637729 → ACNP
Volume
44
Issue
10
Year of publication
2000
Pages
641 - 646
Database
ISI
SICI code
1063-7729(200010)44:10<641:TAG36A>2.0.ZU;2-2
Abstract
Observations of the very-high-energy gamma-ray flux of the blazar 3C 66A (z 0.444) carried out at the Crimean Astrophysical Observatory with the GT-48 atmospheric Cerenkov detector are reported. The gamma-ray fluxes in 1997 a nd 1998 were lower than in 1996. The optical luminosity of the object in 19 97-1998 also decreased in comparison with its value in 1996. If the emissio n is isotropic, the very-high-energy gammaray power is 10(46) erg/s. (C) 20 00 MAIK "Nauka/Interperiodica".