Fundamental Parameters of Four Massive Eclipsing Binaries in Westerlund 1

Details Fundamental Parameters of Four Massive Eclipsing Binaries in Westerlund 1 Fundamental Parameters of Four Massive Eclipsing Binaries in Westerlund 1

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012hell.conf...26b&link_type=abstract

10th Hellenic Astronomical Conference, Proceedings of the conference held at Ioannina, Greece, 5-8 September 2011. Edited by Io

Astronomy and Astrophysics

Astronomy

Scientific paper

We present fundamental parameters of four massive eclipsing binaries in the young massive cluster Westerlund 1. The goal is to measure accurate masses and radii of their component stars, which provide much needed constraints for evolutionary models of massive stars. Accurate parameters can further be used to determine a dynamical lower limit for the magnetar progenitor and to obtain an independent distance to the cluster. Our results confirm and extend the evidence for a high mass for the progenitor of the magnetar.

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