Stellar Lunch Blue Supergiants as distance and stellar metallicity measures in the Local Volume
نویسنده
چکیده
Rolf Kudritzki and co-workers at the IfA, University of Hawaii (and elsewhere) have, over the past 14 years, been developing techniques to use low resolution spectroscopy of distant B-A supergiants to measure stellar metallicity, surface gravities, reddening and extinction, absolute bolometric magnitudes and distances. With the current 8-10 metre class telescopes the technique permits these measurements out to distances approaching 10Mpc. This talk will be about their latest methods and their
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