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

被引:75
作者
Holder, J [1 ]
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
Müller, D
Nagai, TN
Ong, R
Page, M
Pallassini, R
Petry, D
Power-Mooney, B
Quinn, J
Rebillot, P
Reynolds, PT
Rose, HJ
Schroedter, M
Sembroski, GH
Swordy, SP
Vassiliev, VV
Wakely, SP
机构
[1] Univ Leeds, Dept Phys, Leeds LS2 9JT, W Yorkshire, England
[2] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[3] Washington Univ, Dept Phys, St Louis, MO 63130 USA
[4] Iowa State Univ Sci & Technol, Dept Phys & Astron, Ames, IA 50011 USA
[5] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA
[6] Galway Mayo Inst Technol, Sch Sci, Galway, Ireland
[7] Grinnell Coll, Dept Phys, Grinnell, IA 50112 USA
[8] Natl Univ Ireland, Dept Phys, Dublin 4, Ireland
[9] Harvard Smithsonian Ctr Astrophys, Fred Lawrence Whipple Observ, Amado, AZ 85645 USA
[10] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
[11] Univ Utah, High Energy Astrophys Inst, Salt Lake City, UT 84112 USA
[12] Univ Arkansas, Dept Phys & Astron, Little Rock, AR 72204 USA
[13] Depauw Univ, Dept Phys, Greencastle, IN 46135 USA
[14] Univ Calif Los Angeles, Dept Phys, Los Angeles, CA 90095 USA
[15] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[16] Cork Inst Technol, Dept Phys, Cork, Ireland
基金
美国国家科学基金会;
关键词
BL Lacertae objects : individual (1ES 1959+650); gamma rays : observations;
D O I
10.1086/367816
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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.
引用
收藏
页码:L9 / L12
页数:4
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