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

  • J. Holder
  • , I. H. Bond
  • , P. J. Boyle
  • , S. M. Bradbury
  • , J. H. Bucekly
  • , D. A. Carter-Lewis
  • , W. Cui
  • , C. Dowdall
  • , C. Duke
  • , I. De La Calle Perez
  • , A. Falcone
  • , D. J. Fegan
  • , S. J. Fegan
  • , J. P. Finley
  • , L. Fortson
  • , J. A. Gaidos
  • , K. Gibbs
  • , S. Gammell
  • , J. Hall
  • , T. A. Hall
  • A. M. Hillas, D. Horan, M. Jordan, M. Kertzman, D. Kieda, J. Kildea, J. Knapp, K. Kosack, H. Krawczynski, F. Krennrich, S. LeBohec, E. T. Linton, J. Lloyd-Evans, P. Moriarty, D. Müller, T. N. Nagai, R. Ong, M. Page, R. Pallassini, D. Petry, B. Power-Mooney, J. Quinn, P. Rebillot, P. T. Reynolds, H. J. Rose, M. Schroedter, G. H. Sembroski, S. P. Swordy, V. V. Vassiliev, S. P. Wakely, G. Walker, T. C. Weekes
  • University of Leeds
  • University of Chicago
  • Washington University in St. Louis
  • Iowa State University
  • Purdue University
  • Galway-Mayo Institute of Technology
  • Grinnell College
  • National University of Ireland
  • Center for Astrophysics | Harvard & Smithsonian
  • University of Utah
  • University of Arkansas
  • De Pauw University
  • University of California, Los Angeles
  • NASA Goddard Space Flight Center
  • Cork Institute of Technology
  • University of Arizona

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

We present the first strong detection of very high energy γ-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 7plusmn; 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.

langue originaleAnglais
Pages (de - à)L9-L12
journalAstrophysical Journal
Volume583
Numéro de publication1 II
Les DOIs
étatPublié - 20 janv. 2003
Modification externeOui

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