Millimetre observations of infrared carbon stars. I. The data

Astronomy and Astrophysics – Astrophysics

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Circumstellar Matter, Stars: Mass-Loss, Stars: Agb And Post-Agb

Scientific paper

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. 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. The complete Fig. 1 is only available in electronic form at http://www.edpsciences.org. The complete Table 3 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/390/501

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