a Chandra and Xmm-Newton Study of the Most Distant Quasars: X-Raying the First Massive Black Holes

Details a Chandra and Xmm-Newton Study of the Most Distant Quasars: X-Raying the First Massive Black Holes a Chandra and Xmm-Newton Study of the Most Distant Quasars: X-Raying the First Massive Black Holes

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..934b&link_type=abstract

Chandra Proposal ID #03700401

Computer Science

Chandra Proposal Id #03700401

Scientific paper

We propose to continue our systematic Chandra and XMM-Newton study of the most distant known quasars, with our ultimate goals being to learn about the central power sources and environments of the first quasars to form in the Universe. We request exploratory observations of 12 quasars with z > 4.8 and one with z = 4.78. These data, combined with our previous programs, will provide nearly complete X-ray coverage of all known z > 4.8 quasars. We will constrain the X-ray luminosity function of optically selected quasars at the highest redshifts, and we will define the broad-band spectral energy distributions of these quasars. Count stacking will give basic spectral constraints. These observations will provide the key flux information needed for effective planning of future X-ray spectroscopy.

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