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About the QSOs contained in the Cerro el Roble Survey and the density of UVX-QSOs in the SGP field

Published online by Cambridge University Press:  19 July 2016

Luis E. Campusano
Luis E. Campusano*
Affiliation:
Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago de Chile Guest Investigator at Las Campanas Observatory

Extract

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A region containing the SGP, centered at α 00h 53m (1950) δ −28°03', is becoming a selected region for QSO research. Three lists of QSO candidates have been published for this field. One consists of candidates discovered visually on an objective prism plate, selected in a 25-deg2 area and with B(lim) ⋍ 20 mag (Clowes and Savage, 1983; the CS sample). The other list came from visual inspection of U and B plates (UVX stars), covering a region of 44-deg2 and with approximately the same limiting magnitude of the CS sample (Campusano and Torres, 1983; the CT sample). The third survey of QSO-candidates involved a machine selection of UVX stars (Shanks et al., 1983), whose published components correspond to two small areas of 1.6 and 8.2 deg2 with B(lim) = 19 mag (Boyle et al., 1985).

Type
I. Surveys
Information
Symposium - International Astronomical Union , Volume 119: Quasars , 1986 , pp. 49 - 50
Copyright
Copyright © Reidel 1986 

References

Boyle, B.J., Fong, R., Shanks, T. and Clowes, R.G.: 1985, Mon. Not. R. astr. Soc. 216, 623.CrossRefGoogle Scholar
Campusano, L.E. and Torres, C.: 1983, Astron. J. 88, 1304.Google Scholar
Clowes, R.G. and Savage, A.: 1983, Mon. Not. R. astr. Soc. 204, 365.Google Scholar
Schmidt, M. and Green, R.G.: 1983, Astrophys. J. 269, 352.Google Scholar
Shanks, T., Fong, R., Green, M.R., Clowes, R.G. and Savage, A.: 1983, Mon. Not. R. astr. Soc. 203, 181.Google Scholar