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Resource Record Summary

Catalog Service:
Sloan Digital Sky Survey quasar photometry

Short name: J/AJ/121/2308
IVOA Identifier: ivo://CDS.VizieR/J/AJ/121/2308
DOI (Digital Object Identifier): 10.26093/cds/vizier.51212308
Publisher: CDSivo://CDS[Pub. ID]
More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/121/2308
VO Compliance: Level 2: This is a VO-compliant resource.
Status: active
Registered: 2001 Sep 22 16:45:26Z
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Description


We present an empirical investigation of the colors of quasars in the Sloan Digital Sky Survey (SDSS) photometric system. The sample studied includes 2625 quasars with SDSS photometry: 1759 quasars found during SDSS spectroscopic commissioning and SDSS follow-up observations on other telescopes, 50 matches to FIRST quasars, 573 matches to quasars from the NASA Extragalactic Database, and 243 quasars from two or more of these sources. The quasars are distributed in a 2.5{deg} wide stripe centered on the celestial equator covering ~529deg^2^. Positions (accurate to 0.2") and SDSS magnitudes are given for the 898 quasars known prior to SDSS spectroscopic commissioning.

More About this Resource

About the Resource Providers

This section describes who is responsible for this resource

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

Creators:
Richards G.T.Fan X.Schneider D.P.Vanden Berk D.E.Strauss M.A.York D.G.Anderson J.E.JrAnderson S.F.Annis J.Bahcall N.A.Bernardi M.Briggs J.W.Brinkmann J.Brunner R.Burles S.Carey L.Castander F.J.Connolly A.J.Crocker J.H.Csabai I.Doi M.Finkbeiner D.Friedman S.D.Frieman J.A.Fukugita M.Gunn J.E.Hindsley R.B.Ivezic Z.Kent S.Knapp G.R.Lamb D.Q.Leger R.F.Long D.C.Loveday J.Lupton R.H.McKay T.A.Meiksin A.Merrelli A.Munn J.A.Newberg H.J.Newcomb M.Nichol R.C.Owen R.Pier J.R.Pope A.Richmond M.W.Rockosi C.M.Schlegel D.J.Siegmund W.A.Smee S.Snir Y.Stoughton C.Stubbs C.Subbarao M.Szalay A.S.Szokoly G.P.Tremonti C.Uomoto A.Waddell P.Yanny B.Zheng W.

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: 2001 Sep 22 16:45:59Z
  • Created: 2001 Sep 22 16:45:26Z

This resource was registered on: 2001 Sep 22 16:45:26Z
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
  • Quasars
  • 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/121/2308 Literature Reference: 2001AJ....121.2308R

Related Resources:

Other Related Resources
TAP VizieR generic service(IsServedBy) ivo://CDS.VizieR/TAP [Res. ID]
Conesearch service(IsServedBy)
J/AJ/115/296 : SDSS new variables (Henden+ 1998) ivo://CDS.VizieR/J/AJ/115/296 [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/121/2308
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/121/2308/table2 (SDSS (Sloan Digital Sky Survey) quasar photometry)
Available endpoints for the standard interface:
  • http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/121/2308/table2?
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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