X-ray QSO evolution from a very deep ROSAT survey
In the deepest optically identified X-ray survey yet performed, we have identified 32 X-ray selected QSOs to a flux limit of 2x10^{-15} erg cm^{-2} s^{-1} (0.5-2 keV). The survey, performed with the ROSAT PSPC, has 89% spectroscopic completeness. The QSO log(N)-log(S) relation is found to have a bre...
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Bibliographic Details
Main Authors: |
Jones, L,
McHardy, I,
Merrifield, MR,
Mason, K,
Smith, P,
Abraham, R,
Branduardi-Raymont, G,
Newsam, A,
Dalton, G,
Rowan-Robinson, M,
Luppino, G |
Format: | Journal article
|
Language: | English |
Published: |
1996
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