Observations of TeV emission from PKS 2005-489 and PKS 0548-322

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作者
Chadwick, PM [1 ]
Lyons, K [1 ]
McComb, TJL [1 ]
Orford, KJ [1 ]
Osborne, JL [1 ]
Rayner, SM [1 ]
Shaw, SE [1 ]
Turver, KE [1 ]
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[1] Univ Durham, Dept Phys, Sci Labs, Durham DH1 3LE, England
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P1 [天文学];
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0704 ;
摘要
Observations have been made using the University of Durham Mark 6 telescope of the nearby X-ray selected BI, Lacs PKS 2005-489 and PKS 0548-322 which should be strong candidates as sources of TeV emission. We find no evidence for longterm emission of VHE gamma rays from these sources in extended measurements covering similar to 2 years. We find 3 sigma limits to the VHE gamma ray finx of 0.79 x 10(-11) cm(-2) s(-1) above 400 GeV for PK 2005-489 and 2.4 x 10(-11) cm(-2) s(-1) above 300 GeV for PKS 0548-322.
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页码:96 / 99
页数:4
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