What is the origin of the water vapour signatures in red giant stars?

M. Farzone, N. Ryde, G. M. Harper, J. Lambert, E. Josselin, M. J. Richter, K. Eriksson

    Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

    Abstract

    We investigate the occurrence of water vapour signatures in a total of 10 red giants in the solar neighbourhood at mid-infrared wavelengths (12 pm). With the use of high resolution spectra from TEXES and synthesized spectra based on MARCS model atmospheres, we analyse the differences and discuss plausible causes. These include abundance adjustments, the addition of non-photospheric components (MOLspheres) and a different temperature profile.

    Original languageEnglish
    Title of host publicationEAS Publications Series
    PublisherEDP Sciences
    Pages155-159
    Number of pages5
    Volume60
    ISBN (Print)9782759809974
    DOIs
    Publication statusPublished - 2013
    EventBetelgeuse Workshop 2012 - The Physics of Red Supergiants: Recent Advances and Open Questions - Paris, France
    Duration: 2012 Nov 262012 Nov 29

    Publication series

    NameEAS Publications Series
    Volume60
    ISSN (Print)16334760
    ISSN (Electronic)16381963

    Conference

    ConferenceBetelgeuse Workshop 2012 - The Physics of Red Supergiants: Recent Advances and Open Questions
    Country/TerritoryFrance
    CityParis
    Period2012/11/262012/11/29

    Subject classification (UKÄ)

    • Astronomy, Astrophysics and Cosmology

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