J/ApJ/753/13: Resource Record Summary

Resource Record Summary

Catalog Service:
OI equivalent widths in Be stars

Short name: J/ApJ/753/13 IVOA Identifier: ivo://CDS.VizieR/J/ApJ/753/13 DOI (Digital Object Identifier): 10.26093/cds/vizier.17530013 Publisher: CDSivo://CDS[Pub. ID] More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/753/13 VO Compliance: Level 2: This is a VO-compliant resource.	Status: active Registered: 2016 Jan 11 13:21:05Z
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Description

The possibility of the Ly{beta} fluorescence mechanism being operational in classical Be (CBe) stars and thereby contributing to the strength of the OI{lambda}8446 line has been recognized for long. However, this supposition needs to be quantified by comparing observed and predicted OI line ratios. In the present work, optical and near-infrared spectra of CBe stars are presented. We analyze the observed strengths of the OI{lambda}7774, {lambda}8446, {lambda}11287, and {lambda}13165 lines, which have been theoretically proposed as diagnostics for identifying the excitation mechanism. We have considered and examined the effects of Ly{beta} fluorescence, collisional excitation, recombination, and continuum fluorescence on these O I line strengths. From our analysis it appears that the Ly{beta} fluorescence process is indeed operative in Be stars.

More About this Resource

About the Resource Providers

This section describes who is responsible for this resource

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

Creators:

Mathew B.Banerjee D.P.K.Subramaniam A.Ashok N.M.

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: 2017 Oct 12 13:00:19Z
Created: 2016 Jan 11 13:21:05Z

This resource was registered on: 2016 Jan 11 13:21:05Z
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: Line intensities Stellar spectral types Spectroscopy Be stars
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/753/13	Literature Reference: 2012ApJ...753...13M
Related Resources: Other Related Resources TAP VizieR generic service(IsServedBy) ivo://CDS.VizieR/TAP [Res. ID] Conesearch service(IsServedBy) J/other/BASI/39.517 : Spectroscopy of classical Be stars (Mathew+, 2011) ivo://CDS.VizieR/J/other/BASI/39.517 [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: Interactive web page: http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/753/13

	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/753/13

	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/753/13/table1 (List of classical Be stars which show OI(7774) and OI(8446) in emission, with equivalent width and line flux ratio estimates)

Available endpoints for the standard interface:

http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/753/13/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.