XMM-Newton Proposal 02021003

Details XMM-Newton Proposal 02021003 XMM-Newton Proposal 02021003

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop..112w&link_type=abstract

XMM-Newton Proposal ID #02021003

Computer Science

Nep 1239, Nep 1640, Nep 2131, Xmm-Newton Proposal 02021003

Scientific paper

We propose to obtain XMM-Newton spectra for the only three QSO2 candidates found in the completely identified ROSAT North Ecliptic Pole survey. These objects show optical narrow high-ionization lines and very high X-ray luminosities. Obscured QSO2 are a key ingredient in models of the diffuse X-ray background, but they are not found in large number as expected. The spectra that we propose to obtain will confirm the classification as obscured QSO2 if we detect absorption also in the X-ray band. It will be possible to probe the internal structure of the emitting region, and detect the presence of absorbing or reflecting material. The complete identification status of the survey will allow us for the first time to compute QSO2 spatial density in the soft X-ray sky.

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