Astronomy Letters

, Volume 30, Issue 8, pp 527–533 | Cite as

A hard X-ray sky survey with the SIGMA telescope of the GRANAT observatory

  • M. G. Revnivtsev
  • R. A. Sunyaev
  • M. R. Gilfanov
  • E. M. Churazov
  • A. Goldwurm
  • J. Paul
  • P. Mandrou
  • J. P. Roques
Article

Abstract

The SIGMA X-ray telescope accumulated the images of more than a quarter of the sky during the in-orbit operation of the GRANAT observatory. The longest exposure time (∼9 million s) was spent on the observations of the Galactic center region. We give an overview of the SIGMA X-ray observations and report the sensitivities achieved in various regions of the sky.

Key words

GRANAT Observatory SIGMA X-ray telescope sky survey 

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Copyright information

© MAIK "Nauka/Interperiodica" 2004

Authors and Affiliations

  • M. G. Revnivtsev
    • 1
    • 2
  • R. A. Sunyaev
    • 1
    • 2
  • M. R. Gilfanov
    • 1
    • 2
  • E. M. Churazov
    • 1
    • 2
  • A. Goldwurm
    • 3
    • 4
  • J. Paul
    • 3
    • 4
  • P. Mandrou
  • J. P. Roques
    • 5
  1. 1.Space Research InstituteRussian Academy of SciencesMoscowRussia
  2. 2.Max Planck Institut für AstrophysikGarching bei MünchenGermany
  3. 3.DAPNIA/Service d’Astrophysique CEA SaclayFrance
  4. 4.Fédération de Recherche Astroparticule et Cosmologie Université de ParisFrance
  5. 5.Centre d’Etudes Spatiale des RayonnementsToulouseFrance

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