Carbon Stars in the Infrared Telescope in Space Survey

Details Carbon Stars in the Infrared Telescope in Space Survey Carbon Stars in the Infrared Telescope in Space Survey

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005pasp..117..199l&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 117, Issue 828, pp. 199-206.

Astronomy and Astrophysics

Astronomy

7

Stars: Carbon, Stars: Mass Loss, Stars: Agb And Post-Agb, Infrared: Stars

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 μm. Among them, 14 are new bright (K~4.0-7.0) carbon stars. We find a trend relating the 3.1 μm 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 μm feature and the degree of development of the extended stellar atmosphere where dust starts to form.

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