Physics
Scientific paper
Sep 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..173b&link_type=abstract
Chandra Proposal ID #01700871
Physics
Chandra Proposal Id #01700871
Scientific paper
We propose to measure the X-ray flux of 27 previously undetected, bright, radio quiet quasars with z>4. To date, only 6 radio quiet quasars with z>4 have been detected in X-rays. We draw our sample from the objects whose emission line spectra have been observed by Shields and Hamman with Keck and the MMT. These well-studied objects form the definitive sample of the highest redshift quasars known.
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