R31 - A massive O + W-R star binary in the Small Magellanic Cloud

Details R31 - A massive O + W-R star binary in the Small Magellanic Cloud R31 - A massive O + W-R star binary in the Small Magellanic Cloud

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..811h&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, Oct. 1984, p. 811-816.

Astronomy and Astrophysics

Astronomy

13

Binary Stars, Magellanic Clouds, O Stars, Orbital Elements, Radial Velocity, Supermassive Stars, Wolf-Rayet Stars, Eccentric Orbits, Hertzsprung-Russell Diagram, Mass Ratios, Stellar Mass, Stellar Motions, Stellar Spectra

Scientific paper

The authors present spectroscopic data on the O6 + WN3 binary R31 in the SMC, which improve the orbital determination of Moffat (1982). The period is found to be 6.538 days. From several considerations they consider an eccentricity of ≡0.2 to be possible. From the absence of known eclipses and lack of evidence that the primary fills its Roche lobe, they infer that the orbital inclination is ≡60° or less. The stellar masses are most probably 65 M_sun; and 12 M_sun;. This makes the O star one of the most massive yet measured. Velocity differences between absorption lines of different ions are thought to be due to stellar wind effects, and may be phase dependent. The unusually large mass ratio is discussed.

Affiliated with

Also associated with

No associations

Rating

R31 - A massive O + W-R star binary in the Small Magellanic Cloud does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with R31 - A massive O + W-R star binary in the Small Magellanic Cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and R31 - A massive O + W-R star binary in the Small Magellanic Cloud will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1229767