/ftp/cats/7/269



==========================================================================
VII/269             SDSS Quasar Catalog, DR9Q                (Paris+, 2012)
The following files can be converted to FITS (extension .fit or fit.gz)
	dr9q.dat dr9qsup.dat
==========================================================================
Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=VII/269
==========================================================================

drwxr-xr-x 257 cats archive 8192 Feb 8 10:28 [Up] drwxr-xr-x 4 cats archive 4096 Jan 13 2023 [TAR file] -rw-r--r-- 1 cats archive 467 Dec 19 2022 .message -r--r--r-- 1 cats archive 22748 Feb 10 2016 ReadMe -rw-r--r-- 1 cats archive 1872 Aug 6 2019 +footg5.gif -rw-r--r-- 1 cats archive 11025 Aug 6 2019 +footg8.gif -r--r--r-- 1 cats archive 22593503 Feb 10 2016 dr9q.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 35493921 Oct 23 2012 dr9q.fits.gz [Uncompressed] -r--r--r-- 1 cats archive 23465164 Oct 25 2012 dr9q.v00.gz [Uncompressed] -r--r--r-- 1 cats archive 258470 Oct 19 2012 dr9q_sup.fits.gz [Uncompressed] -r--r--r-- 1 cats archive 623493 Nov 22 2012 dr9qsup.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : VII/269 SDSS Quasar Catalog, DR9Q (Paris+, 2012) ================================================================================ The Sloan Digital Sky Survey Quasar Catalog: ninth data release. Paris I., Petitjean P., Aubourg E., Bailey S., Ross N.P., Myers A.D., Strauss M.A., Anderson S.F., Arnau E., Bautista J., Bizyaev D., Bolton A.S., Bovy J., Brandt W.N., Brewington H., Brownstein J.R., Busca N., Capellupo D., Carithers W., Croft R.A.C., Dawson K., Delubac T., Ebelke G., Eisenstein D.J., Engelke P., Fan X., Filiz Ak N., Finley H., Font-Ribera A., Ge J., Gibson R.R., Hall P.B., Hamann F., Hennawi J.F., Ho S., Hogg D.W., Ivezic Z., Jiang L., Kimball A.E., Kirky D., Kirkpatrick J.A., Lee K-G., Le Goff J.-M., Lundgren B., MacLeod C.L., Malanushenko E., Malanushenko V., Maraston C., McGreer I.D., McMahon R.G., Miralda-Escude J., Muna D., Noterdaeme P., Oravetz D., Palanque-Delabrouille N., Pan K., Perez-Fournon I., Pieri M.M., Richards G.T., Rollinde E., Sheldon E.S., Schlegel D.J., Schneider D.P., Slosar A., Shelden A., Shen Y., Simmons A., Snedden S., Suzuki N., Tinker J., Viel M., Weaver B.A., Weinberg D.W., White M., Wood-Vasey W.M., Yeche C. <Astron. Astrophys. 548, A66 (2012)> =2012A&A...548A..66P ================================================================================ ADC_Keywords: Surveys ; QSOs ; Active gal. nuclei ; Spectroscopy Keywords: catalogs - surveys - quasars: general Abstract: We present the Data Release 9 Quasar (DR9Q) catalog from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey III. The catalog includes all BOSS objects that were targeted as quasar candidates during the survey, are spectroscopically confirmed as quasars via visual inspection. This catalog contains 87,822 quasars (78,086 are new discoveries) detected over 3,275deg^2^ with robust identification and redshift measured by a combination of principal component eigenspectra newly derived from a training set of 8,632 spectra from SDSS-DR7. The number of quasars with z>2.15 (61,931) is 2.8 times larger than the number of z>2.15 quasars previously known. Redshifts and FWHMs are provided for the strongest emission lines (CIV, CIII], MgII). The catalog identifies 7,533 broad absorption line quasars and gives their characteristics. For each object the catalog presents five-band (u,g,r,i,z) CCD-based photometry with typical accuracy of 0.03mag, and information on the morphology and selection method. The catalog also contains X-ray, ultraviolet, near-infrared, and radio emission properties of the quasars, when available, from other large-area surveys. We also provide a supplemental list of an additional 949 quasars that have been identified, among galaxy targets of the BOSS or among quasar targets after DR9 was frozen. Description: The SDSS-DR9 Quasar Catalog presents photometric and spectroscopic properties of 87,822 quasars observed by the SDSS-III/BOSS survey. We provide the catalog in the form of a fits file but also an ascii file. We also provide a supplemental list containing 949 quasars with exactly the same format as the main catalog.