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CO isotopologue ratios in the solar photosphere

Published online by Cambridge University Press:  27 October 2016

James R. Lyons ,
Ehsan Gharib-Nezhad  and
Thomas R. Ayres
James R. Lyons
Affiliation:
School of Earth and Space Exploration, Arizona State University, PO Box 871404, Tempe, AZ 85287-1404USA email: jimlyons@asu.edu
Ehsan Gharib-Nezhad
Affiliation:
School of Molecular Sciences, Arizona State University, PO Box 871604, Tempe, AZ 85287-1604USA email: egharibn@asu.edu
Thomas R. Ayres
Affiliation:
Center for Astrophysics and Space Astronomy, University of Colorado, 389 UCB, Boulder, CO 80309-0389USA email: thomas.ayres@colorado.edu
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Abstract

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We re-evaluate the CO dipole moment function in order to obtain more accurate isotope ratios for the solar photosphere using previous infrared observations. We used a new set of dipole moments from HITEMP which were accurately determined by both semi-empirical and ab initio methods. Preliminary values of isotope ratios using the new dipole moments are in better agreement with the inferred photosphere values from Genesis, showing that the solar photosphere is isotopically similar to primitive inclusions in meteorites.

Keywords

solar photospheresolar system formationsolar abundances
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , General Assembly A29A: Astronomy in Focus , August 2015 , pp. 307 - 308
Copyright
Copyright © International Astronomical Union 2016 

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