Near-infrared spectral properties of metal-poor red supergiants

Details Near-infrared spectral properties of metal-poor red supergiants Near-infrared spectral properties of metal-poor red supergiants

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005assl..329p..28i&link_type=abstract

Starbursts: From 30 Doradus to Lyman Break Galaxies, Held in Cambridge, UK, 6-10 September 2004. Edited by R. de Grijs and R.M.

Astronomy and Astrophysics

Astrophysics

Scientific paper

We have embarked on a project to obtain medium/high-resolution spectra of stars spanning the relevant abundance range (Ivanov et al. 2004). Here we report ISAAC@VLT spectroscopy of metal-poor supergiants from the Magellanic Clouds, covering the H and K atmospheric windows. The spectral resolution is about R=9000, making the new spectra excellent templates for measuring the velocity dispersion in external galaxies. The typical signal-to-noise ratio is 30-50. We report the strengths of metal and molecule features.

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