A QSO Discovered at the Redshift of the Extended X-Ray Cluster RX J0152.7-1357

Bibcode
2006PASP..118..124B
DOI
10.1086/498357
Burbidge, E. M.; Gutiérrez, C. M.; Arp, H.
Referencia bibliográfica

The Publications of the Astronomical Society of the Pacific, Volume 118, Issue 839, pp. 124-128.

Fecha de publicación:
1
2006
Número de autores
3
Número de autores del IAC
1
Número de citas
2
Número de citas referidas
1
Descripción
The galaxy cluster RX J0152.7-1357 at z=0.8325 is one of the most luminous X-ray clusters known. It is elongated toward the bright, nearby, X-ray active galaxy NGC 720 about 14' away. At the same distance on the other side of that galaxy is an X-ray blue stellar object with a flux of 5.8 counts ks-1 in the ROSAT PSPC detector. An intermediate-resolution optical spectrum of this blue stellar object taken with the Keck I telescope has resulted in the unambiguous identification of this source with a QSO at redshift z=0.8312, the same redshift as the galaxy cluster. We discuss the implications of this discovery in the framework of the standard model for large-scale structure formation.
Tipo
Con árbitro
Galaxias
Cuásares

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