The low wind expansion velocity of metal-poor carbon stars in the Halo and the Sagittarius stream
The low wind expansion velocity of metal-poor carbon stars in the Halo and the Sagittarius stream
We report the detection, from observations using the James Clerk Maxwell Telescope, of CO J= 3 → 2 transition lines in six carbon stars, selected as members of the Galactic Halo and having similar infrared colours. Just one Halo star had been detected in CO before this study. Infrared observations …