The large bright quasar survey. 6: Quasar catalog and survey parameters

Details The large bright quasar survey. 6: Quasar catalog and survey parameters The large bright quasar survey. 6: Quasar catalog and survey parameters

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....109.1498h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 109, no. 4, p. 1498-1521

Astronomy and Astrophysics

Astronomy

247

Astronomical Catalogs, Brightness, Luminosity, Magnitude, Position (Location), Quasars, Red Shift, Celestial Mechanics, Cross Correlation, Sky Surveys (Astronomy), Spectrum Analysis

Scientific paper

Positions, redshifts, and magnitudes for the 1055 quasars in the Large Bright Quasar Survey (LBQS) are presented in a single catalog. Celestial positions have been derived using the PPM catalog to provide an improved reference frame. J2000.0 coordinates are given together with improved b1950.0 positions. Redshifts calculated via cross correlation with a high signal-to-noise ratio composite quasar spectrum are included and the small number of typographic and redshift misidentifications in the discovery papers are corrected. Spectra of the 12 quasars added to the sample since the publication of the discovery papers are included. Discriptions of the plate material, magnitude calibration, quasar candidate selection procedures, and the identification spectroscopy are given. Calculation of the effective area of the survey for the 1055 quasars comprising the well-defined LBQS sample specified in detail. Number-redshift and number-magnitude relations for the quasars are derived and the strengths and limitastions of the LBSQ sample summarized. Comparison with existing surveys is made and a qualitative assessment of the effectiveness of the LBQS undertaken. Positions, magnitudes, and optical spectra of the eight objects (less than 1%) in the survey that remain unidentified are also presented.

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