Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..464r&link_type=abstract
Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 July
Astronomy and Astrophysics
Astronomy
Scientific paper
Extragalactic eclipsing binaries open a new perspective in the study of stellar structure and evolution. Stars in different galaxies have formed and evolved in environments with chemical histories that may differ from those of the solar neighborhood. For example the LMC and SMC contain low-metallicity young massive stars that are no longer found in our galaxy. Eclipsing binaries yielding accurate determinations of masses radii and temperatures allow for critical tests of e.g. convective overshooting mass loss and internal structure. In addition they provide an empirical calibration of the M-L relationship. In this paper I will present some results from our ongoing programs on the determination of physical properties and distances to eclipsing binaries in the LMC the SMC and M31. In particular I will focus on aspects relevant to stellar astrophysics and on the contributions of these eclipsing binaries to our understanding of the structure and chemical evolution of the host galaxies.
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