VII/273: Resource Record Summary

Resource Record Summary

Catalog Service:
The Half Million Quasars (HMQ) catalogue

Short name: VII/273 IVOA Identifier: ivo://CDS.VizieR/VII/273 Bibcode: 2015yCat.7273....0F Publisher: CDS[+]ivo://CDS[Pub. ID] More Info: http://cdsarc.unistra.fr/cgi-bin/cat/VII/273 VO Compliance: Level 2: This is a VO-compliant resource.	Status: active Registered: 2015 May 15 09:57:06Z
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Description

A quasar catalogue is presented with a total of 510764 objects including 424748 type 1 QSOs and 26623 type 1 AGN complete from the literature to 25 January 2015. Also included are 25015 high-confidence SDSS-based photometric quasars with radio/X-ray associations, 1595 BL Lac objects, and 32783 type 2 objects. Each object is displayed with arcsecond-accurate astrometry, red and blue photometry, redshift, citations, and radio and X-ray associations where present. Also, 114 new spectroscopically confirmed quasars are presented.

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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=VII/273

[+]	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=VII/273

[+]	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.