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Resource Record Summary

Catalog Service:
High-temperature methane cross-sections

Short name: J/ApJS/240/4
IVOA Identifier: ivo://CDS.VizieR/J/ApJS/240/4
DOI (Digital Object Identifier): 10.26093/cds/vizier.22400004
Publisher: CDSivo://CDS[Pub. ID]
More Info: http://cdsarc.unistra.fr/cgi-bin/cat/J/ApJS/240/4
VO Compliance: Level 2: This is a VO-compliant resource.
Status: active
Registered: 2019 Jan 25 14:25:08Z
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Description


Spectra of hot methane were recorded using a tube furnace and a high-resolution Fourier transform spectrometer. We obtained experimental absorption spectra in the 1.85-1.11um near-infrared region at eight temperatures ranging from 295K up to 1000K. We have converted these into an atlas of absorption cross sections at each temperature for the methane tetradecad, icosad and triacontad polyads, excluding some spectral intervals either strongly contaminated by water or due to baseline fringes. On the theoretical side, the spectra were simulated from the ab initio-based Reims-Tomsk TheoReTS line list for the same experimental conditions. This line list has been constructed by global variational calculations from potential energy and dipole moment surfaces followed by empirical line position corrections deduced from previously published analyses. The comparisons showed very good overall agreement between observations and theory at high spectral resolution for the tetradecad and icosad and at medium or low resolution above this range. A full set of the theoretical absorption cross sections is also included. Detailed temperature dependence of the methane absorption enables the efficient method of remotely probing the temperature of distant astronomical objects based on a comparison of relative signals in carefully selected spectral intervals. This first combined experimental and theoretical easy-to-use cross-section library in the near-infrared should be of major interest for the interpretation of current and future astronomical observations up to a resolving power of 100000-300000 in the range 6400-7600cm^-1^ and a resolving power of 5000-10000 in the higher wavenumber range up to 9000cm^-1^.

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About the Resource Providers

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

Creators:
Wong A.Bernath P.F.Rey M.Nikitin A.V.Tyuterev V.G.

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

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Version: n/a
Availability: This is an active resource.
  • This service provides only public data.
Relevant dates for this Resource:
  • Updated: 2019 Feb 04 09:02:01Z
  • Created: 2019 Jan 25 14:25:08Z

This resource was registered on: 2019 Jan 25 14:25:08Z
This resource description was last updated on: 2021 Oct 21 00:00:00Z

What This Resource is About

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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:
  • Atomic physics
Intended audience or use:
  • Research: This resource provides information appropriate for supporting scientific research.
More Info: http://cdsarc.unistra.fr/cgi-bin/cat/J/ApJS/240/4 Literature Reference: 2019ApJS..240....4W

Related Resources:

Other Related Resources
TAP VizieR generic service(IsServedBy) ivo://CDS.VizieR/TAP [Res. ID]
J/ApJ/813/12 : Empirical methane (CH_4_) line list (Hargreaves+, 2015) ivo://CDS.VizieR/J/ApJ/813/12 [Res. ID]

Data Coverage Information

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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:
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/ApJS/240/4
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


Developed with the support of the National Science Foundation
under Cooperative Agreement AST0122449 with the Johns Hopkins University
The NAVO project is a member of the International Virtual Observatory Alliance

This NAVO Application is hosted by the Space Telescope Science Institute

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