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Red supergiants in the Small Magellanic Cloud: The effects of metallicity on narrow-band classification indices

Published online by Cambridge University Press:  12 April 2016

Robert F. Wing
Affiliation:
Department of Astronomy, Ohio State University, Columbus, OH 43210, USA
Kyle M. Walker
Affiliation:
Department of Astronomy, Ohio State University, Columbus, OH 43210, USA
D. Jack MacConnell
Affiliation:
Science Programs, Computer Sciences Corporation, Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
Edgardo Costa
Affiliation:
Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile

Abstract

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Narrow-band classification photometry, on a six-color system that measures near-infrared bands of TiO and CN, has been obtained for a set of red supergiants in the Small Magellanic Cloud. To investigate the effects of metallicity on the band-strength indices, comparisons are made to supergiants in the LMC and the Galaxy. Two new variable stars are reported.

Type
Part 5. Red Giants, Miras, post-AGB stars and proto-planetary nebulae
Copyright
Copyright © Astronomical Society of the Pacific 2004

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