Complete photoabsorption linelist for CO and its isotopologues between 101 and 115 nm

Heays, Alan

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https://hdl.handle.net/2142/100681 Copy

Description

Title

Complete photoabsorption linelist for CO and its isotopologues between 101 and 115 nm

Author(s)

Heays, Alan

Contributor(s)

• Stark, Glenn
• Gavilan, Lisseth
• Eidelsberg, Michele
• Lemaire, Jean Louis
• de Oliveira, Nelson
• Ubachs, Wim
• Lyons, James R.
• Federman, Steven

Issue Date

2018-06-18

Keyword(s)

Linelists, Lineshapes, Collisions

Abstract

The photoabsorbing bands of CO and its isotopologues appearing between 101 and 115 nm provide more than half of its photodissociative potential in the interstellar medium and planetary atmospheres, and are responsible for the well-known fractionation of C and O isotopes due to self-shielding. An experimental study of this region over several years using the undulator radiation source and vacuum-ultraviolet Fourier-transform spectroscopy facilities at the SOLEIL synchrotron [1] is complete. Line frequencies [2] and oscillator strengths [3], and widths [in prep.] are deduced, and in some cases extrapolated, to provide updated and reliable cross sections over a range of temperatures, including for the rare 17O isotopologues. 1 N. de Oliveira et al. (2016). The high-resolution absorption spectroscopy branch on the VUV beamline DESIRS at SOLEIL. J. Synchrotron Radiat. 23:887. 2 J.L. Lemaire et al. (2018). Atlas of new and revised high-resolution spectroscopy of six CO isotopologues in the 101-115 nm range. Astron. Astrophys. (accepted) 3 G. Stark et al. (2014). High-resolution oscillator strength measurements of the v=0,1 bands of the B-X, C-X, and E-X systems in five isotopologues of carbon monoxide. Astrophys. J. 788:68

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/100681

DOI

10.15278/isms.2018.MI09

Copyright and License Information

Copyright 2018 Alan Heays

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