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

被引:6
作者
Neshpor, YI [1 ]
Stepanyan, AA [1 ]
Kalekin, OR [1 ]
Zhogolev, NA [1 ]
Fomin, VP [1 ]
Chalenko, NN [1 ]
Shitov, VG [1 ]
机构
[1] Crimean Astrophys Observ, UA-334413 Nauchnyi, Crimea, Ukraine
关键词
D O I
10.1134/1.1312959
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 and 1998 were lower than in 1996. The optical luminosity of the object in 1997-1998 also decreased in comparison with its value in 1996. If the emission is isotropic, the very-high-energy gammaray power is 10(46) erg/s. (C) 2000 MAIK "Nauka/Interperiodica".
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收藏
页码:641 / 646
页数:6
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