J/A+A/635/A5: Resource Record Summary

Resource Record Summary

Catalog Service:
LoTSS giant radio galaxies. I.

Short name: J/A+A/635/A5 IVOA Identifier: ivo://CDS.VizieR/J/A+A/635/A5 DOI (Digital Object Identifier): 10.26093/cds/vizier.36350005 Publisher: CDSivo://CDS[Pub. ID] More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/635/A5 VO Compliance: Level 2: This is a VO-compliant resource.	Status: active Registered: 2020 Feb 28 08:17:42Z
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Description

Giant radio galaxies (GRGs) are a subclass of radio galaxies, which have grown to megaparsec scales. GRGs are much rarer than normal-sized radio galaxies (<0.7Mpc) and the reason for their gigantic sizes is still debated. Here, we report on the biggest sample of GRGs identified to date. These objects were found in the LOFAR Two-metre Sky Survey (LoTSS) first data release images, which cover a 424 deg^2^ region. Of the 239 GRGs found, 225 are new discoveries. The GRGs in our sample have sizes ranging from 0.7Mpc to 3.5Mpc and have redshifts (z) between 0.1 and 2.3. Seven GRGs have sizes above 2Mpc and one has a size of ~3.5Mpc. The sample contains 40 GRGs hosted by spectroscopically confirmed quasars. Here, we present the search techniques employed and the resulting catalogue of the newly discovered large sample of GRGs along with their radio properties. In this paper, we also show for the first time that the spectral index of GRGs is similar to that of normal-sized radio galaxies, indicating that most of the GRG population is not dead or is not similar to a remnant-type radio galaxy. We find that 20 out of 239 GRGs in our sample are located at the centres of clusters and we present our analysis on their cluster environment and radio morphology.

More About this Resource

About the Resource Providers

This section describes who is responsible for this resource

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

Creators:

Dabhade P.Roettgering H.J.A.Bagchi J .Shimwell T.W.Hardcastle M.J.Sankhyayan S.Morganti R.Jamrozy M.Shulevski A.Duncan K.J.

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: 2022 Mar 02 11:49:28Z
Created: 2020 Feb 28 08:17:42Z

This resource was registered on: 2020 Feb 28 08:17:42Z
This resource description was last updated on: 2022 Mar 02 11:49:28Z

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: Galaxies Radio galaxies Galaxy classification systems Redshifted
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/A+A/635/A5	Literature Reference: 2020A&A...635A...5D
Related Resources: Other Related Resources TAP VizieR generic service(IsServedBy) ivo://CDS.VizieR/TAP [Res. ID] Conesearch service(IsServedBy) J/ApJS/191/254 : GMBCG galaxy cluster catalog from SDSS DR7 (Hao+, 2010) ivo://CDS.VizieR/J/ApJS/191/254 [Res. ID]

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

	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: Interactive web page: http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/635/A5

	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/A+A/635/A5

	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/A+A/635/A5/tablea1 (All of the 239 GRGs found from the LoTSS)

Available endpoints for the standard interface:

http://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/635/A5/tablea1?

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/A+A/635/A5/tablea2 (LoTSS GRGs in galaxy clusters)

Available endpoints for the standard interface:

http://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/635/A5/tablea2?

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.