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Resource Record Summary

Catalog Service:
SDSS quasar catalog, I: Early Data Release

Short name: J/AJ/123/567
IVOA Identifier: ivo://CDS.VizieR/J/AJ/123/567
DOI (Digital Object Identifier): 10.26093/cds/vizier.51230567
Publisher: CDSivo://CDS[Pub. ID]
More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/123/567
VO Compliance: Level 2: This is a VO-compliant resource.
Status: active
Registered: 2009 Oct 30 07:11:42Z
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Description


We present the first edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of the 3814 objects (3000 discovered by the SDSS) in the initial SDSS public data release that have at least one emission line with a full width at half-maximum larger than 1000 km/s, luminosities brighter than M_I*_=-23, and highly reliable redshifts. The area covered by the catalog is 494{deg}^2^ ; the majority of the objects were found in SDSS commissioning data using a multicolor selection technique. The quasar redshifts range from 0.15 to 5.03. For each object the catalog presents positions accurate to better than 0.2" rms per coordinate, five-band (ugriz) CCD-based photometry with typical accuracy of 0.05 mag, radio and X-ray emission properties, and information on the morphology and selection method. Calibrated spectra of all objects in the catalog, covering the wavelength region 3800-9200{AA} at a spectral resolution of 1800-2100, are also available. Since the quasars were selected during the commissioning period, a time when the quasar selection algorithm was undergoing frequent revisions, the sample is not homogeneous and is not intended for statistical analysis.

More About this Resource

About the Resource Providers

This section describes who is responsible for this resource

Publisher: CDSivo://CDS[Pub. ID]

Creators:
Schneider D.P.Richards G.T.Fan X.Hall P.B.Strauss M.A.Vanden Berk D.E.Gunn J.E.Newberg H.J.Reichard T.A.Stoughton C.Voges W.Yanny B.Anderson S.F.Annis J.Bahcall N.A.Bauer A.Bernardi M.Blanton M.R.Boroski W.N.Brinkmann J.Briggs J.W.Brunner R.Burles S.Carey L.Castander F.J.Connolly A.J.Csabai I.Doi M.Friedman S.Frieman J.A.Fukugita M.Heckman T.M.Hennessy G.S.Hindsley R.B.Hogg D.W.Ivezic Z.Kent S.Knapp G.R.Kunzst P.Z.Lamb D.Q.Leger R.F.Long D.C.Loveday J.Lupton R.H.Margon B.Meiksin A.Merelli A.Munn J.A.Newcomb M.Nichol R.C.Owen R.Pier J.R.Pope A.Rockosi C.M.Saxe D.H.Schlegel D.Siegmund W.A.Smee S.Snir Y.Subbarao M.Szalay A.S.Thakar A.R.Uomoto A.Waddell P.York D.G.

Contact Information:
X CDS support team
Email: cds-question at unistra.fr
Address: CDS
Observatoire de Strasbourg
11 rue de l'Universite
F-67000 Strasbourg
France

Status of This Resource

This section provides some status information: the resource version, availability, and relevant dates.

Version: n/a
Availability: This is an active resource.
  • This service provides only public data.
Relevant dates for this Resource:
  • Updated: 2017 Dec 12 14:44:31Z
  • Created: 2009 Oct 30 07:11:42Z

This resource was registered on: 2009 Oct 30 07:11:42Z
This resource description was last updated on: 2021 Oct 21 00:00:00Z

What This Resource is About

This section describes what the resource is, what it contains, and how it might be relevant.

Resource Class: CatalogService
This resource is a service that provides access to catalog data. You can extract data from the catalog by issuing a query, and the matching data is returned as a table.
Resource type keywords:
  • Catalog
Subject keywords:
  • Photometry
  • Optical astronomy
  • Sloan photometry
  • Quasars
  • Redshifted
  • Surveys
Intended audience or use:
  • Research: This resource provides information appropriate for supporting scientific research.
More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/123/567 Literature Reference: 2002AJ....123..567S

Related Resources:

Other Related Resources
TAP VizieR generic service(IsServedBy) ivo://CDS.VizieR/TAP [Res. ID]
J/AJ/126/2579(IsPreviousVersionOf) ivo://CDS.VizieR/J/AJ/126/2579 [Res. ID]
Conesearch service(IsServedBy)
http://www.sdss.org/ : The SDSS Home Page ivo://CDS.VizieR/VII/223 [Res. ID]

Data Coverage Information

This section describes the data's coverage over the sky, frequency, and time.

Wavebands covered:

  • Optical

Rights and Usage Information

This section describes the rights and usage information for this data.

Rights:

Available Service Interfaces

Custom Service

This is service that does not comply with any IVOA standard but instead provides access to special capabilities specific to this resource.

VO Compliance: Level 2: This is a VO-compliant resource.
Available endpoints for this service interface:
Custom Service

This is service that does not comply with any IVOA standard but instead provides access to special capabilities specific to this resource.

VO Compliance: Level 2: This is a VO-compliant resource.
Available endpoints for this service interface:
  • URL-based interface: http://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/123/567
Table Access Protocol - Auxiliary ServiceXX

This is a standard IVOA service that takes as input an ADQL or PQL query and returns tabular data.

VO Compliance: Level 2: This is a VO-compliant resource.
Available endpoints for the standard interface:
  • http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Simple Cone SearchXXSearch Me

This is a standard IVOA service that takes as input a position in the sky and a radius and returns catalog records with positions within that radius.

VO Compliance: Level 2: This is a VO-compliant resource.
Description:
Cone search capability for table J/AJ/123/567/table1 (SDSS spectroscopic plate information)
Available endpoints for the standard interface:
  • http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/123/567/table1?
Maximum search radius accepted: 180.0 degrees
Maximum number of matching records returned: 50000
This service supports the VERB input parameter:
Use VERB=1 to minimize the returned columns or VERB=3 to maximize.
Simple Cone SearchXXSearch Me

This is a standard IVOA service that takes as input a position in the sky and a radius and returns catalog records with positions within that radius.

VO Compliance: Level 2: This is a VO-compliant resource.
Description:
Cone search capability for table J/AJ/123/567/table3 (The SDSS Quasar Catalog I)
Available endpoints for the standard interface:
  • http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/123/567/table3?
Maximum search radius accepted: 180.0 degrees
Maximum number of matching records returned: 50000
This service supports the VERB input parameter:
Use VERB=1 to minimize the returned columns or VERB=3 to maximize.


Developed with the support of the National Science Foundation
under Cooperative Agreement AST0122449 with the Johns Hopkins University
The NAVO project is a member of the International Virtual Observatory Alliance

This NAVO Application is hosted by the Space Telescope Science Institute

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