The Radial-Velocity Variation of Theta Ophiuchi.

Ambro van Hoof, F. C. Bertiau, R. Deurinck

The Astrophysical Journal · 1956 · 11 citations · 0 references

Concepts

Abstract

A rediscussion of Henroteau's 1920 and 1922 radial-velocity measurewents and new observations with the 82-inch McDonald telescope in February, 1955, show that 0 Ophiuchi very probably is a Canis Majoris star with a period of 0.153846 day The welocity, as well as the amplitude of the radial-velocity variation, is variable. A beat period of about 68 days is suspected