Empirical masses and radii for the luminous binary Sk-67 105 in the LMC.
Abstract
The detection of optical light variability of Sk-67 105, one of the most massive binaries in the LMC, enables in combination with known spectroscopic data the determination of empirical masses and radii of the components using a light curve synthesis program. It is found that the system is nearly in contact and presumedly passes through Case A mass transfer at the moment. The derived pseudoeccentricity of the orbit may be explained by non-uniform brightness distribution within the system.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- August 1994
- Bibcode:
- 1994A&A...288L...9H
- Keywords:
-
- Eclipsing Binary Stars;
- Light (Visible Radiation);
- Magellanic Clouds;
- O Stars;
- Radii;
- Stellar Luminosity;
- Stellar Mass;
- Stellar Spectra;
- Variability;
- Brightness Distribution;
- Light Curve;
- Spectrum Analysis;
- Stellar Color;
- Stellar Spectrophotometry;
- Astronomy;
- STARS: EARLY-TYPE;
- STARS: FUNDAMENTAL PARAMETERS;
- STARS: INDIVIDUAL: SK-67 105;
- BINARIES: SPECTROSCOPIC;
- BINARIES: ECLIPSING;
- GALAXIES: MAGELLANIC CLOUDS