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The Sheep Survey: What Kind of Objects Make Up the X-Ray BackgroundThis program aims in the understanding of the objects which produce the hard X-ray back- ground. The SHEEP survey consists of objects observed in very hard X-rays in serendipitous ASCA pointings. A subset of this sample was observed with XMM-Newton in order to study their spectral properties.
Document ID
20040139576
Acquisition Source
Goddard Space Flight Center
Document Type
Contractor or Grantee Report
Authors
Zezas, Andreas
(Smithsonian Astrophysical Observatory Cambridge, MA, United States)
Date Acquired
August 22, 2013
Publication Date
September 1, 2004
Subject Category
Astronomy
Funding Number(s)
CONTRACT_GRANT: NAG5-13281
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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