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Astrophysics and Space Science

, Volume 224, Issue 1–2, pp 527–528 | Cite as

Molecular abundances in carbon-rich circumstellar envelopes

  • L. -Å. Nyman
  • H. Olofsson
Poster Contributions

Abstract

Millimetre observations of three southern carbon stars, IRAS 07454-7112, IRAS 15082-4808 and IRAS 15194-5115 detected 14 molecular species and some of their isotopomers. The12C/13C ratio was found to vary between sources.

Key words

stars: carbon molecules 

References

  1. Nyman, L.-Å., Olofsson, H., Johansson, L.E.B., Booth, R.S., Carlström, U., Wolstencroft, R.,: 1993,A&A 269, 377.Google Scholar

Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • L. -Å. Nyman
    • 1
  • H. Olofsson
    • 2
  1. 1.ESOCasillaChile
  2. 2.Stockholms ObservatoriumSaltsjöbadenSweden

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