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Stereoscopic observations of gamma rays at the Whipple observatory |
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| Authors: | F. Krennrich ,C.W. Akerlof,J.H. Buckley,J. Bussó ns-Gordo,D.A. Carter-Lewis,M.F. Cawley,M.A. Catanese,V. Connaughton,D.J. Fegan,J.P. Finley,J.A. Gaidos,K.H. Harris,A.M. Hillas,R.C. Lamb,M.J. Lang,G. Mohanty,J. Quinn,A.J. Rodgers,H.J. Rose,A.C. Rovero,M.S. Schubnell,G.H. Sembroski,T.C. Weekes,C. Wilson |
| Affiliation: | a Department of Physics and Astronomy, Iowa State University, Ames, IA 50011-3160, USA b Randall Laboratory of Physics, University of Michigan, Ann Arbor, MI 48109-1120, USA c Department of Physics, University of Leeds, Leeds, LS2 9JT, Yorkshire, England, UK d Fred Lawrence Whipple Observatory, Harvard-Smithsonian CfA, P.O. Box 97, Amado, AZ 85645-0097, USA e Physics Department, St.Patrick's College, Maynooth, Country Kildare, Ireland f Physics Department, University College, Dublin 4, Ireland g Department of Physics, Purdue University, West Lafayette, IN 47907, USA h Department of Physics, University College, Galway, Ireland i Instituto de Astronomia y Fisica del Espacio, Buenos Aires, Argentina |
| Abstract: | Observations of photons at E ≥ 550 GeV from the Crab Nebula are presented and used to assess the potential of multi-telescope systems for γ-ray astronomy. The Whipple observatory 10 m and 8 m imaging atmospheric erenkov telescopes have been used to provide a stereoscopic view of air showers to make a more complete measurement of air shower parameters. Here we present a measurement of the spread in the arrival direction of primary γ-rays originating from a point source. The data show that the shower arrival direction can be reconstructed with an accuracy of σ = 0.°14. |
| Keywords: | Gamma Rays General Instruments Observations Crab Nebula |
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