Orbits of Four Very Massive Binaries in the R136 Cluster
- 1 February 2002
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 565 (2) , 982-993
- https://doi.org/10.1086/324783
Abstract
We present radial velocity and photometry for four early-type, massive double-lined spectroscopic binaries in the R136 cluster. Three of these systems are eclipsing, allowing orbital inclinations to be determined. One of these systems, R136-38 (O3 V + O6 V), has one of the highest masses ever measured, 57 Mo, for the primary. Comparison of our masses with those derived from standard evolutionary tracks shows excellent agreement. We also identify five other light variables in the R136 cluster which are worthy of follow-up studyKeywords
All Related Versions
This publication has 25 references indexed in Scilit:
- Presupernova Evolution of Rotating Massive Stars. II. Evolution of the Surface PropertiesThe Astrophysical Journal, 2000
- Winds from Hot StarsAnnual Review of Astronomy and Astrophysics, 2000
- Light Curve Solution of HD 93205 (O3 V + O8 V) Containing the Earliest Known Star in a Well-studied BinaryThe Astrophysical Journal, 2000
- Presupernova Evolution of Rotating Massive Stars. I. Numerical Method and Evolution of the Internal Stellar StructureThe Astrophysical Journal, 2000
- The “Mass Discrepancy” for Massive Stars: Tests of Models Using Spectroscopic BinariesThe Astrophysical Journal, 1997
- Ultraviolet Photometry of Stars in the Compact Cluster R136 in the Large Magellanic CloudThe Astronomical Journal, 1997
- Tomographic separation of composite spectra. I - The components of Plaskett's StarThe Astrophysical Journal, 1992
- On winds and X-rays of O-type starsThe Astrophysical Journal, 1991
- The evolution of massive stars. I - The influence of mass loss on Population 1 starsThe Astrophysical Journal, 1982
- Linearized limb-darkening coefficients for use in analysis of eclipsing binary light curvesAstrophysics and Space Science, 1978