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Title: ISO observations of obscured Asymptotic Giant Branch stars in the Large Magellanic Cloud
Authors: Trams, NR ×
van Loon, JT
Waters, Laurentius
Zijlstra, AA
Loup, C
Whitelock, PA
Groenewegen, Martin
Blommaert, Joris
Siebenmorgen, R
Heske, A
Feast, MW #
Issue Date: 1999
Series Title: Astronomy & Astrophysics vol:346 issue:3 pages:843-860
Abstract: We present ISO photometric and spectroscopic observations of a sample of 57 bright Asymptotic Giant Branch stars and red supergiants in the Large Magellanic Cloud, selected on the basis of IRAS colours indicative of high mass-loss rates. PHOT-P and PHOT-C photometry at 12, 25 and 60 mu m and CAM photometry at 12 mu m are used in combination with quasi-simultaneous ground-based near-IR photometry to construct colour-colour diagrams for all stars in our sample. PHOT-S and CAM-CVF spectra in the 3 to 14 mu m region are presented for 23 stars. From the colour-colour diagrams and the spectra, we establish the chemical types of the dust around 49 stars in this sample. Many stars have carbon-rich dust. The most luminous carbon star in the Magellanic Clouds has also a (minor) oxygen-rich component. OH/IR stars have silicate absorption with emission wings. The unique dataset presented here allows a detailed study of a representative sample of thermal-pulsing AGE stars with well-determined luminosities.
Description: European Space Agcy, European Space Res & Technol Ctr, Dept Sci, Astrophys Div,Integral Sci Operat Ctr, NL-2200 AG Noordwijk, Netherlands; Univ Amsterdam, Inst Astron, NL-1098 SJ Amsterdam, Netherlands; Space Res Org Netherlands, NL-9700 AV Groningen, Netherlands; Univ Manchester, Inst Sci & Technol, Manchester M60 1QD, Lancs, England; Inst
ISSN: 0004-6361
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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