J/other/AcApS/20: Resource Record Summary

Resource Record Summary

Catalog Service:
NVSS radio quasars

Short name: J/other/AcApS/20 IVOA Identifier: ivo://CDS.VizieR/J/other/AcApS/20.366 Bibcode: 2001ChA&A..25....6C Publisher: CDS[+]ivo://CDS[Pub. ID] More Info: http://cdsarc.unistra.fr/cgi-bin/cat/J/other/AcApS/20.366 VO Compliance: Level 2: This is a VO-compliant resource.	Status: active Registered: 2008 Feb 09 17:07:35Z
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Description

We have searched 11304 quasars from the NVSS catalog for radio emission and obtained 2626 positive detections, of which 301 are new radio detections. We made statistical studies of the radio spectral index, radio luminosity and the fraction of radio-loud quasars versus absolute B magnitude and redshift. We found that the fraction rises between M_B_=-22 and -30 and that it increases at z=0.0 until z=0.8, then goes down at z=1.5. The degree of polarization shows no dependence on redshift.

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About the Resource Providers

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Status of This Resource

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What This Resource is About

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

[+]	Data Coverage Information
	This section describes the data's coverage over the sky, frequency, and time. Wavebands covered: Optical

[+]	Rights and Usage Information
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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: Interactive web page: http://vizier.unistra.fr/viz-bin/VizieR-2?-source=J/other/AcApS/20.366

[+]	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.unistra.fr/viz-bin/votable?-source=J/other/AcApS/20.366

[+]	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.u-strasbg.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.