497 citations · 3.3k across the 65 of their papers we have counts for
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The Pan-Pacific Planet Search. IV. Two super-Jupiters in a 3:5 resonance orbiting the giant star HD33844
Robert A. Wittenmyer, John Asher Johnson, R. P. Butler +9
We report the discovery of two giant planets orbiting the K giant HD 33844 based on radial velocity data from three independent campaigns. The planets move on nearly circular orbit…
Two New Long-Period Giant Planets from the McDonald Observatory Planet Search and Two Stars with Long-Period Radial Velocity Signals Related to Stellar Activity Cycles
Michael Endl, Erik J. Brugamyer, William D. Cochran +16
We report the detection of two new long-period giant planets orbiting the stars HD 95872 and HD 162004 (psi1 Draconis B) by the McDonald Observatory planet search. The planet HD 95…
Stellar activity mimics a habitable-zone planet around Kapteyn's star
Paul Robertson, Arpita Roy, Suvrath Mahadevan
Kapteyn's star is an old M subdwarf believed to be a member of the Galactic halo population of stars. A recent study has claimed the existence of two super-Earth planets around the…
Response to Comment on "Stellar activity masquerading as planets in the habitable zone of the M dwarf Gliese 581"
Paul Robertson, Suvrath Mahadevan, Michael Endl +1
Anglada-Escudé and Tuomi question the statistical rigor of our analysis while ignoring the stellar activity aspects that we present. Although we agree that improvements in multipar…
Stellar Activity and its Implications for Exoplanet Detection on GJ 176
Paul Robertson, Michael Endl, Gregory W. Henry +3
We present an in-depth analysis of stellar activity and its effects on radial velocity (RV) for the M2 dwarf GJ 176 based on spectra taken over 10 years from the High Resolution Sp…