CH4 and hot methane continuum hybrid line list Virtual Observatory Resource

Authors
  1. Yurchenko S.N.
  2. Amundsen D.S.
  3. Tennyson J.
  4. Waldmann I.P.
  5. Published by
    CDS
Abstract

A line list for methane (CH_4_) is constructed as a combination of 17 million strong absorption lines relative to the reference absorption spectra and a background methane continuum in two temperature-dependent forms of cross sections and super-lines. This approach significantly eases the use of large high temperature line lists as the computationally expensive calculation of pressure-dependent profiles (e.g. Voigt) only need to be performed for a relatively small number of lines. Both the line list and cross sections were generated using a new 34 billion methane line list (known as 34to10), which extends the 10to10 line list to higher temperatures (up to 2000K). The new hybrid scheme can be applied to any large line lists containing billions of transitions. We recommend using super-lines generated on a high resolution grid based on a resolving power of R=1000000 to model the molecular continuum as a more flexible alternative to the temperature-dependent cross sections.

Keywords
  1. atomic-physics
Bibliographic source Bibcode
2017A&A...605A..95Y
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/605/A95
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/605/A95
Document Object Identifer DOI
doi:10.26093/cds/vizier.36050095

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/605/A95
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/605/A95
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/605/A95
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).

History

2017-09-18T12:37:36Z
Resource record created
2017-09-18T12:37:36Z
Created
2018-01-22T07:09:42Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr