IRTS carbon stars (Le Bertre+, 2005)

Details IRTS carbon stars (Le Bertre+, 2005) IRTS carbon stars (Le Bertre+, 2005)

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ycat..61170199l&link_type=abstract

VizieR On-line Data Catalog: J/PASP/117/199. Originally published in: 2005PASP..117..199L

Physics

Stars: Carbon, Photometry: Infrared

Scientific paper

We have identified 139 cool carbon stars in the near-infrared spectrophotometric survey of the Infrared Telescope in Space (IRTS) from the conspicuous presence of molecular absorption bands at 1.8, 3.1, and 3.8{mu}m. Among them, 14 are new bright (K~4.0-7.0) Carbon stars. We find a trend relating the 3.1{mu}m band strength to the (K-L') color index, which is known to correlate with mass-loss rate. This could be an effect of a relation between the depth of the 3.1{mu}m feature and the degree of development of the extended stellar atmosphere where dust starts to form.
(1 data file).

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