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RX J1759.4+6638: An x-ray selected quasars at a redshift of 4.320We report the discovery of an x-ray selected Quasi-Stellar Objects (QSO) at a redshift of 4.320 +/- 0.005. This is the most distant x-ray selected object known, and it is the eighth most distant QSO known. The properties of this QSO are very similar to other QSOs at redshifts greater than 4. The x-ray discovery of this object, and that of high redshift clusters of galaxies, shows that present x-ray surveys are reaching depths competitive with other methods.
Document ID
19950030801
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Henry, J. P.
(Inst. for Astronomy, Honolulu, HI United States)
Gioia, I. M.
(Inst. for Astronomy, Honolulu, HI United States)
Boehringer, H.
(Max Planck Inst. fuer Extraterrestrische Physik Garching, Muenchen, Germany)
Bower, R. G.
(Max Planck Inst. fuer Extraterrestrische Physik Garching, Muenchen, Germany)
Briel, U. G.
(Max Planck Inst. fuer Extraterrestrische Physik Garching, Muenchen, Germany)
Hasinger, G. H.
(Max Planck Inst. fuer Extraterrestrische Physik Garching, Muenchen, Germany)
Aragon-Salamanca, A.
(Univ. of Durham Durham, United Kingdom)
Castander, F. J.
(Univ. of Durham Durham, United Kingdom)
Ellis, R. S.
(Univ. of Durham Durham, United Kingdom)
Huchra, J. P.
(Center for Astrophysics, Cambridge, MA United States)
Date Acquired
August 16, 2013
Publication Date
April 1, 1994
Publication Information
Publication: The Astronomical Journal
Volume: 107
Issue: 4
ISSN: 0004-6256
Subject Category
Astrophysics
Accession Number
95A62400
Funding Number(s)
CONTRACT_GRANT: CRG-91045
CONTRACT_GRANT: NAG5-1649
CONTRACT_GRANT: NAGW-2508
CONTRACT_GRANT: NAG8-794
CONTRACT_GRANT: NAG5-1789
CONTRACT_GRANT: NSF AST-91-19216
Distribution Limits
Public
Copyright
Other

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