Astronomy and Astrophysics – Astronomy
Scientific paper
May 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apjs...76....1w&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 76, May 1991, p. 1-22.
Astronomy and Astrophysics
Astronomy
58
Astronomical Photometry, Quasars, Red Shift, Sky Surveys (Astronomy), Spectrum Analysis, Astronomical Catalogs, Color, Image Analysis, Luminosity, Magnitude
Scientific paper
The present multicolor, wide-field, faint-magnitude survey of high-redshift quasars encompasses the 16-20 magnitude range and covers a 58.6 sq deg area, for an effective area of 45.7 sq deg after quantification of sources of incompleteness. Candidates' selection proceeds according to such novel features as the treatment of multicolor data as low-resolution spectra and the adoption of a quantitative identification algorithm employing all available information. The way in which model quasar spectra are used to calculate the selection function for the survey is detailed. Computed sample completeness is presented as a function of redshift and magnitude for a range of representative quasar types.
Hewett Paul C.
Irwin Michael J.
Osmer Patrick S.
Warren Stephen J.
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