O - H CX update (trac #414)

reported by: @CloudyLex

Title:  
Excitation and charge transfer in low-energy hydrogen atom collisions with neutral oxygen
Authors:    
Barklem, P. S.
Affiliation:    
AA(Theoretical Astrophysics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20, Uppsala, Sweden Paul.Barklem@physics.uu.se)
Publication:    
Astronomy & Astrophysics, Volume 610, id.A57, 7 pp. (A&A Homepage)
Publication Date:   
02/2018
Origin: 
EDP Sciences
Astronomy Keywords: 
atomic data, atomic processes, line: formation, Sun: abundances, stars: abundances
DOI:    
10.1051/0004-6361/201731968
Bibliographic Code: 
2018A&A...610A..57B
Abstract
Excitation and charge transfer in low-energy O+H collisions is studied; it is a problem of importance for 
modelling stellar spectra and obtaining accurate oxygen abundances in late-type stars including the Sun. 
The collisions have been studied theoretically using a previously presented method based on an asymptotic 
two-electron linear combination of atomic orbitals (LCAO) model of ionic-covalent interactions in the neutral 
atom-hydrogen-atom system, together with the multichannel Landau-Zener model. The method has been 
extended to include configurations involving excited states of hydrogen using an estimate for the two-
electron transition coupling, but this extension was found to not lead to any remarkably high rates. Rate 
coefficients are calculated for temperatures in the range 1000-20 000 K, and charge transfer and 
(de)excitation processes involving the first excited S-states, 4s.5So and 4s.3So, are found to have the 
highest rates.

Data are available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via 
http://cdsarc.u-strasbg.fr/vizbin/qcat?J/A+A/610/A57. The data are also available at 
http://https://github.com/barklem/public-data

This author has done a large number of systems. All data are on his github site under H inelastic collisions.

Migrated from https://www.nublado.org/ticket/414

{
    "status": "new",
    "changetime": "2019-02-04T13:02:49Z",
    "_ts": "1549285369825011",
    "description": "{{{\nTitle:\t\nExcitation and charge transfer in low-energy hydrogen atom collisions with neutral oxygen\nAuthors:\t\nBarklem, P. S.\nAffiliation:\t\nAA(Theoretical Astrophysics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20, Uppsala, Sweden Paul.Barklem@physics.uu.se)\nPublication:\t\nAstronomy & Astrophysics, Volume 610, id.A57, 7 pp. (A&A Homepage)\nPublication Date:\t\n02/2018\nOrigin:\t\nEDP Sciences\nAstronomy Keywords:\t\natomic data, atomic processes, line: formation, Sun: abundances, stars: abundances\nDOI:\t\n10.1051/0004-6361/201731968\nBibliographic Code:\t\n2018A&A...610A..57B\nAbstract\nExcitation and charge transfer in low-energy O+H collisions is studied; it is a problem of importance for \nmodelling stellar spectra and obtaining accurate oxygen abundances in late-type stars including the Sun. \nThe collisions have been studied theoretically using a previously presented method based on an asymptotic \ntwo-electron linear combination of atomic orbitals (LCAO) model of ionic-covalent interactions in the neutral \natom-hydrogen-atom system, together with the multichannel Landau-Zener model. The method has been \nextended to include configurations involving excited states of hydrogen using an estimate for the two-\nelectron transition coupling, but this extension was found to not lead to any remarkably high rates. Rate \ncoefficients are calculated for temperatures in the range 1000-20 000 K, and charge transfer and \n(de)excitation processes involving the first excited S-states, 4s.5So and 4s.3So, are found to have the \nhighest rates.\n\nData are available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via \nhttp://cdsarc.u-strasbg.fr/vizbin/qcat?J/A+A/610/A57. The data are also available at \nhttp://https://github.com/barklem/public-data\n\n}}}\n\nThis author has done a large number of systems.  All data are on his github site under H inelastic collisions.",
    "reporter": "gary",
    "cc": "",
    "resolution": "",
    "time": "2018-04-14T12:56:01Z",
    "component": "atomic/molecular data base",
    "summary": "O - H CX update",
    "priority": "good to do",
    "keywords": "",
    "version": "",
    "milestone": "no milestone",
    "owner": "nobody",
    "type": "physics"
}

cloudy-astrophysics / bug-tracker-migration-test

O - H CX update (trac #414) #416