V 505 MON - One of the most massive binaries

Details V 505 MON - One of the most massive binaries V 505 MON - One of the most massive binaries

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..88..115s&link_type=abstract

Astrophysics and Space Science, vol. 88, no. 1, Nov. 1982, p. 115-123. Research supported by the Consiglio Nazionale delle Rice

Astronomy and Astrophysics

Astrophysics

10

Binary Stars, Stellar Spectra, Supermassive Stars, Astronomical Spectroscopy, Early Stars, H Alpha Line, Orbital Elements, Radial Velocity, Stellar Mass

Scientific paper

Spectroscopic and orbital features of the bright binary star V 505 Mon are reported. A total of 59 spectrograms were made of the object from Dec. 1969-76. Petrie's lines were employed to determine the radial velocities of the pair. A 53.7805 day period was observed, together with a system velocity within 3 km/sec of 32 km/sec, an eccentricity within 0.5 of 0.06, a periastron angle of component 1 of plus or minus 34 deg of 15 deg. The periastron epoch of component 1 was 2441424.03, close to the ascending node epoch. The semi-amplitude of component 1 was within 4 km/sec of 83 km/sec, while the semi-amplitude of component 2 was within 11 km/sec of -155 km/sec. The mass function of the primary was within 4 of 20 solar masses, the secondary, within 0.4 of 3.2 solar masses. The system appeared well-detached. H-alpha emission was recorded in four phases.

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