The Orbit and Colors of the Cepheid S MUSCAE

Evans, Nancy Remage

Canada, United States

Abstract

A new orbit has been computed for the binary Cepheid S Mus combining new data from Mount John Observatory with previous data. Corrections to the colors and reddening due to the light from the companion are derived. The spectral type determined from IUE low-dispersion spectra is used for these corrections. The corrections are small, even though the companion is one of the hottest (B5 V) known for a Cepheid.

1990 Publications of the Astronomical Society of the Pacific
IUE 14