The optical identification content of the Einstein Observatory deep X-ray survey of a region in Pavo

Details The optical identification content of the Einstein Observatory deep X-ray survey of a region in Pavo The optical identification content of the Einstein Observatory deep X-ray survey of a region in Pavo

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...269..375g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 269, June 15, 1983, p. 375-386. Research supported by the Science and Engin

Astronomy and Astrophysics

Astrophysics

68

Extragalactic Radio Sources, Heao 2, Quasars, X Ray Sources, Astronomical Spectroscopy, Background Radiation, Centimeter Waves, Cosmology, Elliptical Galaxies, Magnitude, Radiant Flux Density, Stellar Color

Scientific paper

Results are presented from the Einstein deep X-ray survey in Pavo, with correlated optical and radio observations of a complete sample of candidate identifications. There are 16 X-ray sources detected with positional accuracy better than 10 arcsec, of which five are identified, with a further seven (and a maximum nine) probable identifications. Of the identified sources, four are QSOs with J-magnitude about 20 (one is an inverted spectrum radio source) and one is associated with extended emission from a pair or cluster of galaxies. Of the probable identifications, one is a galaxy and the rest are a subset of a yellow stellar object population which may also be QSOs. Identifications with QSOs and QSO candidates with J less than 24 account for 60-80 percent of the detected sources.

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