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

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

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.

Details

Authors
  • M. Farzone
  • N. Ryde
  • G. M. Harper
  • J. Lambert
  • E. Josselin
  • M. J. Richter
  • K. Eriksson
Organisations
External organisations
  • Trinity College Dublin
  • University of Montpellier
  • University of California
  • Uppsala University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Astronomy, Astrophysics and Cosmology
Original languageEnglish
Title of host publicationEAS Publications Series
PublisherEDP Sciences
Pages155-159
Number of pages5
Volume60
ISBN (Print)9782759809974
StatePublished - 2013
Publication categoryResearch
Peer-reviewedYes
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
CountryFrance
CityParis
Period2012/11/262012/11/29

Related projects

Nils Ryde & Julien Lambert

2012/01/012013/12/31

Project: ResearchIndividual research project

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