Spectroscopic orbits for K giants β Reticuli and ν Octantis: What is causing a low-amplitude radial velocity resonant perturbation in ν Oct?

• Main Authors: D. J. Ramm, D. Pourbaix, J. B. Hearnshaw, S. Komonjinda
• Format: Journal
• Published: 2018
• Subjects: Earth and Planetary Sciences; Physics and Astronomy
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=63549085532&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/59529
• Institution: Chiang Mai University

New astrometric-spectroscopic orbital solutions for the single-line K-giant binaries β Reticuli (P ≈ 5.2 yr, e = 0.3346 ± 0.0004) and ν Octantis (P ≈ 2.9 yr, e = 0.2358 ± 0.0003) have been derived based on high-precision spectroscopic radial velocities (RVs) and the Hipparcos astrometry. For the cas...