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Populations of OB-type stars in galaxies

Published online by Cambridge University Press:  12 July 2011

Christopher J. Evans*
Affiliation:
UK Astronomy Technology Centre, Blackford Hill, Edinburgh, EH9 3HJ, UK email: chris.evans@stfc.ac.uk
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Abstract

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One of the challenges for stellar astrophysics is to reach the point at which we can undertake reliable spectral synthesis of unresolved populations in young, star-forming galaxies at high redshift. Here I summarise recent studies of massive stars in the Galaxy and Magellanic Clouds, which span a range of metallicities commensurate with those in high-redshift systems, thus providing an excellent laboratory in which to study the role of environment on stellar evolution. I also give an overview of observations of luminous supergiants in external galaxies out to a remarkable 6.7 Mpc, in which we can exploit our understanding of stellar evolution to study the chemistry and dynamics of the host systems.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

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