XMM-Newton Proposal 03057514

Details XMM-Newton Proposal 03057514 XMM-Newton Proposal 03057514

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop..185k&link_type=abstract

XMM-Newton Proposal ID #03057514

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Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Sdss1014+00, Sdss1508-0011, Sdss1706+60, Sdss1713+57, Sdss1033+00, Sdss1130+00, Sdss1702+60, Sdss1505+00, Sdss1341-00, Sdss0004+00, Sdss0155-00, Sdss1243+00, Sdss1216-00, Sdss1237-00, Xmm-Newton Proposal 03057514

Scientific paper

We propose an XMM survey of low redshift partially obscured quasars discovered in the Sloan Digital Sky Survey (SDSS). These objects are characterized by large Balmer decrements, stellar-light dominated continuum, luminous broad Halpha and narrow [OIII]. With an estimated density similar to optical-color selected QSOs, this large population of obscured QSOs has many impacts on quasar studies, such as the inclination oriented unification scheme. However, it is far from clear whether they are absorbed but otherwise normal quasars, or a special class of objects. X-rays will provide a unique view to distinguish between these possibilities, and allow us to determine this objects' contribution to the X-ray background.

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