Chandra ACIS Snapshot Observations of the Most Luminous Quasars from the Sloan Digital Sky Survey

Details Chandra ACIS Snapshot Observations of the Most Luminous Quasars from the Sloan Digital Sky Survey Chandra ACIS Snapshot Observations of the Most Luminous Quasars from the Sloan Digital Sky Survey

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.1993g&link_type=abstract

Chandra Proposal ID #07700097

Physics

Chandra Proposal Id #07700097

Scientific paper

We propose to obtain Chandra ACIS-S snapshot exposures of the most optically luminous quasars found in the SDSS that lack X-ray detections. These powerhouses are presumably examples of extreme accretion conditions, and to our surprise only about 30% of the most luminous SDSS quasars have information about their X-ray properties beyond uninteresting upper limits (primarily provided by the ROSAT All Sky Survey). We will study the extreme physical conditions in these quasars via analyses of their X-ray-to-optical flux ratios and their basic X-ray spectral properties. Observations of these quasars will significantly help in breaking luminosity-redshift degeneracies that arise in studies of quasar properties.

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