Volume 390, Number 2, August I 2002
|Page(s)||501 - 510|
|Published online||12 July 2002|
I. The data
Instituut voor Sterrenkunde, PACS-ICC, Celestijnenlaan 200B, 3001 Heverlee, Belgium
2 Mount Stromlo and Siding Spring Observatory, Cotter road, Weston ACT, Australia
3 Kapteyn Astronomical Institute, Postbus 800, 9700 AV, Groningen, The Netherlands
4 Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile
Corresponding author: M. Groenewegen, firstname.lastname@example.org
Accepted: 15 May 2002
Millimetre observations of IRAS selected red carbon stars are presented. About 260 stars have been observed with SEST and IRAM in the CO (1–0) and CO (2–1) lines and partially in HCN (1–0) and SiO (3–2). An overall detection rate, in at least one line, of about 80% is achieved. The survey represents the second largest survey for AGB stars, and the largest ever for carbon stars. Two new detections in SiO (3–2) in carbon stars are reported. When available, the SiO/HCN and HCN/CO (1–0) line ratios are consistent with the ratios expected for carbon stars.
Key words: circumstellar matter / stars: mass-loss / stars: AGB and post-AGB
Based on observations collected at the European Southern Observatory, La Silla, Chile within program ESO 60.E-0103, 62.L-0128, 64.L-0012 and 66.D-0027. Also based on observations with the IRAM telescope, Granada, Spain under programs 98-97, 141-97 and 010-99
© ESO, 2002
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