Radial velocity studies of spectroscopic binaries with the objective prism. II - Three new massive binaries in the Scorpius OB 1 association

Details Radial velocity studies of spectroscopic binaries with the objective prism. II - Three new massive binaries in the Scorpius OB 1 association Radial velocity studies of spectroscopic binaries with the objective prism. II - Three new massive binaries in the Scorpius OB 1 association

Sep 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26as...49..673g&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 49, Sept. 1982, p. 673-676. Research supported by the Minister für Wissensch

Astronomy and Astrophysics

Astrophysics

8

B Stars, Binary Stars, O Stars, Radial Velocity, Scorpius Constellation, Supermassive Stars, Astronomical Spectroscopy, Orbital Elements, Prisms, Stellar Magnitude, Stellar Spectra

Scientific paper

The high luminous objects HD 151910, HD 152333 and HD 152590 near the very young open cluster NGC 6231, which is related to the Scorpius OB 1 association, are to be spectroscopic binaries. From 23 relative radial velocities for each object, the binary periods could be found unambiguously. Orbital elements and corresponding radial velocity curves are given. The perfect agreement of the barycentric radial velocities and the radial space motion of NGC 6231 suggests a kinematical relation of the binaries with the cluster and the surrounding OB-aggregate. Mass estimates from spectral types, absolute visual magnitudes and mass functions reveal combined masses larger than 30 solar masses. The lower limit of the combined mass of HD 152333, the most massive system, is estimated to be even near 40 solar masses.

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