Characterization of X-ray sources detected in a deep Einstein exposure of the field around 3C 295

Journal Article · Thu Aug 01 04:00:00 EDT 1985 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/113850· OSTI ID:5681373

Henry, J P; Lavery, R J; Clarke, J T; Bowyer, S

An extensive set of optical and radio observations is presented that characterize the X-ray sources detected in an extremely deep Einstein Observatory exposure of the 3C 295 region. A total of five X-ray sources was found. This number is consistent with the only previous log N - log S result published at these flux levels. One of the sources was a galactic star. The four extragalactic sources are active galactic nuclei (three Seyferts and one QSO). Two of the sources are Seyfert galaxies in the 3C 295 cluster, one of which was previously unknown. The number of Seyfert galaxies in the cluster that is found from this complete X-ray survey is inconsistent with that expected from the fraction of low-redshift active galactic nuclei in their clusters. 24 references.

• Research Organization: Hawaii Univ., Honolulu; California Univ., Berkeley
• OSTI ID: 5681373
• Journal Information: Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 90; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELECTROMAGNETIC RADIATION
FLUX DENSITY
GALAXIES
GALAXY CLUSTERS
GALAXY NUCLEI
PHOTOMETRY
QUASARS
RADIANT FLUX DENSITY
RADIATIONS
RADIOWAVE RADIATION
SEYFERT GALAXIES
SPECTRA
VISIBLE RADIATION
X-RAY SPECTRA