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Tentative detection of circumstellar CO2 from the AGB star R Crateris
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Astronomical observatory. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Astronomy and Space Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Astronomical observatory.
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1998 (English)In: Astrophysics and Space Science, ISSN 0004-640X, E-ISSN 1572-946X, Vol. 255, no 1-2, 301-302 p.Article in journal (Refereed) Published
Abstract [en]

We report on and discuss the detection of an emission feature at 14.98 mu m from the oxygen-rich, semi-regularly pulsating asymptotic Giant Branch star R Crateris, a feature which we suggest to be due to the 2(0)(1) Q-branch of circumstellar CO2. We also suggest a reasonable excitation mechanism, which could explain the height, the width and the asymmetry of the feature.

Place, publisher, year, edition, pages
1998. Vol. 255, no 1-2, 301-302 p.
Keyword [en]
circumstellar matter, infrared, stars, late-type, AGB and post-AGB, E stars, mass loss, long-wavelength spectrometer, molecular envelope, evolved stars, circumstellar envelopes, o-ceti, dust, atmosphere, variables
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-85303ISI: 000075465800049OAI: oai:DiVA.org:uu-85303DiVA: diva2:113211
Conference
International Conference on ISOs View on Stellar Evolution, July 1-4, 1997, Noordwijkerhout, Netherlands
Note
Addresses: Ryde Nils, Univ Uppsala, Astron Observ, S-75120 Uppsala, Sweden. Univ Uppsala, Astron Observ, S-75120 Uppsala, Sweden. Onsala Space Observ, S-43992 Onsala, Sweden. Stockholm Observ, S-13336 Saltsjobaden, Sweden.Available from: 2005-05-03 Created: 2005-05-03 Last updated: 2012-06-29Bibliographically approved

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Ryde, NilsEriksson, KjellGustafsson, Bengt

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