New distance and depth estimates from observations of eclipsing binaries in the SMC

A sample of 33 eclipsing binaries observed in a field of the SMC with FLAMES@VLT is presented. The radial velocity curves obtained, together with existing OGLE light curves, allowed the determination of all stellar and orbital parameters of these binary systems. The mean distance modulus of the observed pact; of the SMC is 19.05 mag, based on the 26 roost, reliable, systems. Assuming ail average error of 0.1 mag on the distance modulus to an individual system, and a gaussian distribution of the distance moduli, we obtain a 2-sigma depth of 0.36 mag or 10.6 kpc. Some results on the kinematics of the binary stars and of the H II gas are also given.

Published in:
Magellanic System: Stars, Gas, And Galaxies, 256, 57-62
Presented at:
256th Symposium of the International-Astronomical-Union, Keele, ENGLAND, Jul 28-Aug 01, 2008
Cambridge Univ Press, The Pitt Building, Trumpington St, Cambridge Cb2 1Rp, Cambs, England

 Record created 2010-11-30, last modified 2018-03-17

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