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J/AJ/131/2766      Quasar luminosity function from SDSS-DR3    (Richards+, 2006)

The Sloan Digital Sky Survey quasar survey: quasar luminosity function from Data Release 3. Richards G.T., Strauss M.A., Fan X., Hall P.B., Jester S., Schneider D.P., Vanden Berk D.E., Stoughton C., Anderson S.F., Brunner R.J., Gray J., Gunn J.E., Ivezic Z., Kirkland M.K., Knapp G.R., Loveday J., Meiksin A., Pope A., Szalay A.S., Thakar A.R., Yanny B., York D.G., Barentine J.C., Brewington H.J., Brinkmann J., Fukugita M., Harvanek M., Kent S.M., Kleinman S.J., Krzesinski J., Long D.C., Lupton R.H., Nash T., Neilsen E.H.JR, Nitta A., Schlegel D.J., Snedden S.A. <Astron. J., 131, 2766-2787 (2006)> =2006AJ....131.2766R
ADC_Keywords: QSOs ; Surveys ; Photometry, SDSS ; Redshifts Keywords: cosmology: observations - galaxies: active - galaxies: luminosity function, mass function - quasars: general - surveys Abstract: We determine the number counts and z=0-5 luminosity function for a well-defined, homogeneous sample of quasars from the Sloan Digital Sky Survey (SDSS). We conservatively define the most uniform statistical sample possible, consisting of 15343 quasars within an effective area of 1622°2 that was derived from a parent sample of 46420 spectroscopically confirmed broad-line quasars in the 5282°2 of imaging data from SDSS Data Release 3. The sample extends from i=15 to 19.1 at z≲3 and to i=20.2 for z≳3. Description: The SDSS uses a dedicated wide-field 2.5m telescope at Apache Point Observatory, New Mexico, with a 140megapixel imaging camera and a pair of fiber-fed multiobject double spectrographs. The imaging is carried out in five broad bands (ugriz). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 30 6413 Quasar selection function table4.dat 11 550 K-corrections table5.dat 54 15343 Statistical quasar sample table6.dat 42 101 Binned quasar luminosity function
See also: VII/243 : SDSS quasar catalog. III. (Schneider+, 2005) VII/241 : The 2dF QSO Redshift Survey (Croom+ 2004) J/AJ/131/2788 : Quasar sample for the SFQS survey (Jiang+, 2006) http://www.sdss.org : SDSS Home Page Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 F4.1 mag imag The i band magnitude 6- 9 F4.2 --- z Redshift 11- 16 F6.3 --- point [0,1]?=-1 Non-radio point source selection function 18- 23 F6.3 --- radio [0,1]?=-1 Radio-detected point source selection function 25- 30 F6.3 --- extend [0,1]?=-1 Extended source selection function
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 4 F4.2 --- z Redshift 6- 11 F6.3 --- KCorr The i band K correction (1)
Note (1): Including both the emission line and continuum (αν=-0.5, normalized at z=2) components.
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [SDSS] 6- 24 A19 --- SDSSJ The SDSS name (SDSS JHHMMSS.ss+DDMMSS.s in Simbad) 26- 30 F5.3 --- z Redshift 32- 36 F5.2 mag imag Dereddened i band magnitude 38- 43 F6.2 mag iMAG Absolute i band magnitude at z=2 45- 49 F5.2 mag D(g-i) Relative (g-i) color index 51- 54 F4.2 --- Cor [0,1] Selection function value
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 4 F4.2 --- z Redshift bin 6- 11 F6.2 mag iMAG Absolute i band magnitude at z=2 13- 17 F5.2 [Mpc-3.mag-1] logPhi Log of the space density 19- 25 F7.2 10-9Mpc-3.mag-1 errPhi Error in the space density 27 I1 --- Fill [0/1] Indicator of whether the bin is completely covered by data (1=yes, 0=no) 29- 32 F4.2 --- <z> Mean redshift of quasars in the bin 34- 36 I3 --- NQ Number of quasars in the bin 38- 42 F5.1 --- NQcor Corrected number of quasars in bin (1)
Note (1): After applying the selection function.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 14-May-2008
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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