Detection of TeV gamma rays from the BL Lacertae object 1ES 1959+650 with the Whipple 10 meter telescope

作者：Holder J^*; Bond IH; Boyle PJ; Bradbury SM; Buckley JH; Carter Lewis DA; Cui W; Dowdall C; Duke C; Perez ID; Falcone A; Fegan DJ; Fegan SJ; Finley JP; Fortson L; Gaidos JA; Gibbs K; Gammell S; Hall J; Hall TA; Hillas AM; Horan D; Jordan M; Kertzman M; Kieda D; Kildea J; Knapp J; Kosack K; Krawczynski H; Krennrich F; LeBohec S; Linton ET; Lloyd Evans J; Moriarty P; Muller D; Nagai TN; Ong R; Page M; Pallassini R; Petry D; Power Mooney B; Quinn J

来源：Astrophysical Journal, 2003, 583(1): L9-L12.

DOI：10.1086/367816

• BL Lacertae objects : individual (1ES 1959+650)
• gamma rays : observations

We present the first strong detection of very high energy gamma-rays from the close (z=0.048) X-ray-selected BL Lacertae object 1ES 1959+650. Observations were made with the Whipple 10 m telescope on Mount Hopkins, Arizona, using the atmospheric Cerenkov imaging technique. The flux between 2002 May and July was highly variable, with a mean of 0.64+/-0.03 times the steady flux from the Crab Nebula and reaching a maximum of 5 crab, with variability on timescales as short as 7 hr.

• 出版日期2003-1-20