143 citations · 209 across the 5 of their papers we have counts for
5 papers
A photospheric and chromospheric activity analysis of the quiescent retrograde-planet host Octantis A
David Ramm, Paul Robertson, Sabine Reffert +4
The single-lined spectroscopic binary Octantis provided evidence of the first conjectured circumstellar planet demanding an orbit retrograde to the stellar orbits. The planet-l…
Line-depth-ratio temperatures for the close binary nu Octantis: new evidence supporting the conjectured retrograde planet
David J. Ramm
We explore the possibly that either star-spots or pulsations are the cause of a periodic radial-velocity signal (P~400 days) from the K-giant binary nu Octantis (P~1050 days, e~0.2…
The conjectured S-type retrograde planet in nu Octantis: more evidence including four years of iodine-cell radial velocities
D. J. Ramm, B. E. Nelson, M. Endl +6
We report 1212 radial-velocity (RV) measurements obtained in the years 2009-2013 using an iodine cell for the spectroscopic binary nu Octantis (K1III/IV). This system (a_bin~2.6 au…
The Mt John University Observatory Search For Earth-mass Planets In The Habitable Zone Of Alpha Centauri
M. Endl, C. Bergmann, J. Hearnshaw +6
The "holy grail" in planet hunting is the detection of an Earth-analog: a planet with similar mass as the Earth and an orbit inside the habitable zone. If we can find such an Earth…
Constraining the difference in convective blueshift between the components of alpha Cen with precise radial velocities
D. Pourbaix, D. Nidever, C. McCarthy +12
New radial velocities of alpha Cen A & B obtained in the framework the Anglo-Australian Planet Search programme as well as in the CORALIE programme are added to those by Endl et al…