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IR to X-ray spectral energy distributions of high redshift quasars

Authors :
Aneta Siemignowska
Fabrizio Fiore
Belinda Jane Wilkes
Jonathan C. McDowell
Martin Elvis
Roc M. Cutri
Marcia J. Rieke
Jill Bechtold
Source :
AIP Conference Proceedings.
Publication Year :
1994
Publisher :
AIP, 1994.

Abstract

We have observed 13 quasars having z≳2.8 with the ROSAT PSPC, and detected 12 of them, including the z=4.11 quasar 0000–263. For the radio quiet quasars with z≳2.5, the mean 〈αox〉∼1.8. Thus, the high redshift quasars are relatively more X‐ray quiet than quasars with z

Details

ISSN :
0094243X
Database :
OpenAIRE
Journal :
AIP Conference Proceedings
Accession number :
edsair.doi...........6ccb6a7ed5c9c7e1803c5d364134ef7d
Full Text :
https://doi.org/10.1063/1.46722