Small Magellanic Cloud Be stars: colour-magnitude relations and mass-loss
Astrophysics
2007-05-23 v1
Abstract
We present an analysis of optical lightcurves of Small Magellanic Cloud Be-type stars. Observations show that (1) optical excess flux is correlated with near-IR excess flux indicating a similar mechanism and (2) the lightcurves can trace out ``loops'' in a colour-magnitude diagram. A simple model for the time dependent bound-free and free-free emission produced by an outflowing circumstellar disk gives reasonable fits to the observations.
Cite
@article{arxiv.astro-ph/0606314,
title = {Small Magellanic Cloud Be stars: colour-magnitude relations and mass-loss},
author = {W. J. de Wit and H. J. G. L. M. Lamers and J. B. Marquette and J. P. Beaulieu},
journal= {arXiv preprint arXiv:astro-ph/0606314},
year = {2007}
}
Comments
2 pages - Conference proceedings to 'Mass Loss from stars and the evolution of stellar clusters' - Lunteren, The Netherlands, May 29 - June 1, 2006. A. de Koter, L. Smith & R. Waters