CO isotopologue ratios in the solar photosphere

James Lyons, Ehsan Gharib-Nezhad, Thomas R. Ayres

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish (US)
Pages (from-to)307-308
Number of pages2
JournalProceedings of the International Astronomical Union
Issue numberA29A
StatePublished - 2015


  • solar abundances
  • solar photosphere
  • solar system formation

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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