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The Extragalactic X-Ray Background

ROSAT Observations

  • Chapter
Frontiers of Space And Ground-Based Astronomy

Part of the book series: Astrophysics and Space Science Library ((ASSL,volume 187))

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Abstract

This review describes the most recent advances in the study of the extragalactic soft X-ray background and what we can learn about its constituents. The deepest pointed observations with the ROSAT PSPC are discussed. The logN-logS relation is presented, which reaches to the faintest X-ray fluxes and to the highest AGN surface densities ever achieved. The N(>S) relation shows a density in excess of 400 deg-2 at the faintest fluxes and a flattening below the Einstein Deep Survey limit. About 60% of the extragalactic background has been resolved in the deepest field. Detailed source spectra and first optical and radio identifications will be discussed. The results are put into perspective of the higher energy X-ray background.

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Author information

Authors and Affiliations

  1. Max-Planck-Institut für extraterrestrische Physik, D-85740, Garching, Germany

    G. Hasinger

Authors
  1. G. Hasinger
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Editor information

Editors and Affiliations

  1. ESA IUE Observatory VILSPA, Madrid, Spain

    W. Wamsteker

  2. Cavendish Laboratory, University of Cambridge, Cambridge, UK

    M. S. Longair

  3. NASA/GSFC, Greenbelt, MD, USA

    Y. Kondo

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© 1994 Springer Science+Business Media Dordrecht

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Hasinger, G. (1994). The Extragalactic X-Ray Background. In: Wamsteker, W., Longair, M.S., Kondo, Y. (eds) Frontiers of Space And Ground-Based Astronomy. Astrophysics and Space Science Library, vol 187. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0794-5_38

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  • DOI: https://doi.org/10.1007/978-94-011-0794-5_38

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-4341-0

  • Online ISBN: 978-94-011-0794-5

  • eBook Packages: Springer Book Archive

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