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Nils Ryde. Photo.

Nils Ryde

Professor

Nils Ryde. Photo.

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

Author

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

Summary, in English

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.

Department/s

  • Lund Observatory

Publishing year

2013

Language

English

Pages

155-159

Publication/Series

EAS Publications Series

Volume

60

Document type

Conference paper

Publisher

EDP Sciences

Topic

  • Astronomy, Astrophysics and Cosmology

Conference name

Betelgeuse Workshop 2012 - The Physics of Red Supergiants: Recent Advances and Open Questions

Conference date

2012-11-26 - 2012-11-29

Conference place

Paris, France

Status

Published

Project

  • Carl-TryggerStiftelse: Water on Stars

ISBN/ISSN/Other

  • ISSN: 16334760
  • ISSN: 16381963
  • ISBN: 9782759809974