Concepedia

Publication | Closed Access

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

DOI

28

Citations

0

References

1983

Year

R. E. Griffiths, S. S. Murray, R. Giacconi, Jill Bechtold, Paul Murdin, M. G. Smith, H. T. MacGillivray, M. J. Ward, John Danziger, J. Lub,
The Astrophysical Journal

Abstract

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.