J/ApJ/643/238: Resource Record Summary

Resource Record Summary

Catalog Service:
Chandra/2MASS sources in Cygnus OB2

Short name: J/ApJ/643/238 IVOA Identifier: ivo://CDS.VizieR/J/ApJ/643/238 DOI (Digital Object Identifier): 10.26093/cds/vizier.16430238 Publisher: CDSivo://CDS[Pub. ID] More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/643/238 VO Compliance: Level 2: This is a VO-compliant resource.	Status: active Registered: 2008 Dec 26 22:44:14Z
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Description

A 50ks Chandra observation of the unidentified TeV source in Cygnus reported by the HEGRA collaboration reveals no obvious diffuse X-ray counterpart. However, 240 point-like X-ray sources are detected within or nearby the extended TeV J2032+4130 source region, of which at least 36 are massive stars and two may be radio emitters. That the HEGRA source is a composite, having as a counterpart the multiple point-like X-ray sources we observe, cannot be ruled out. Indeed, the distribution of point-like X-ray sources appears nonuniform and concentrated broadly within the extent of the TeV source region. We offer a hypothesis for the origin of the very high energy gamma-ray emission in Cyg OB2 based on the local acceleration of TeV-range cosmic rays and the differential distribution of OB versus less massive stars in this association.

More About this Resource

About the Resource Providers

This section describes who is responsible for this resource

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

Creators:

Butt Y.M.Drake J.Benaglia P.Combi J.A.Dame T.Miniati F.Romero G.E.

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: 2008 Dec 26 21:48:17Z
Created: 2008 Dec 26 22:44:14Z

This resource was registered on: 2008 Dec 26 22:44:14Z
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: Open star clusters Infrared astronomy Infrared sources X-ray sources
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/ApJ/643/238	Literature Reference: 2006ApJ...643..238B
Related Resources: Other Related Resources TAP VizieR generic service(IsServedBy) ivo://CDS.VizieR/TAP [Res. ID] Conesearch service(IsServedBy) B/chandra : The Chandra Archive Log (CXC, 1999-) ivo://CDS.VizieR/B/chandra [Res. ID]

	Data Coverage Information
	This section describes the data's coverage over the sky, frequency, and time. Wavebands covered: X-ray Infrared

	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/ApJ/643/238

	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/ApJ/643/238

	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/ApJ/643/238/table1 (Detected sources in Cyg OB2)

Available endpoints for the standard interface:

http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/643/238/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.