Small magellanic cloud be stars: color-magnitude relations and mass-loss

W.J.M. de Wit, H.J.G.L.M. Lamers, J.B. Marquette, J.P. Beaulieu

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

Abstract

We present an analysis of optical lightcurves of Small Magellanic Cloud (SMC) 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 dependence of bound-free and free-free (bf-ff) emission produced by an outflowing circumstellar disk gives reasonable fits to the observations.
Original languageUndefined/Unknown
Title of host publicationMass loss from stars and the evolution of stellar clusters : proceedings of a workshop held at Lunteren, The Netherlands 29 May - 1 June 2006
EditorsA. de Koter, L.J. Smith, L.B.F.M. Waters
Place of PublicationSan Francisco
PublisherAstronomical Society of the Pacific
Pages163-164
Number of pages471
ISBN (Print)978-1-58381-644-8
Publication statusPublished - 2008

Publication series

NameAstronomical Society of the Pacific conference series
Number388

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