3 papers
astro-ph.SR2026
HD 38973 b -- a cold Saturn orbiting a Sun-like star
Adriana Errico, Robert A. Wittenmyer, Jonathan Horner +2
We report the detection of a long-period companion to the nearby solar-type star HD\,38973 using precision radial-velocity measurements. The radial-velocity data reveal a coherent…
astro-ph.EP2026
Hot Jupiter - Cold Jupiter: A complex sibling relation
Adriana Errico, Robert A. Wittenmyer, Jonathan Horner +2
A handful of planetary systems hosting a Hot Jupiter have been subsequently found to also host long-period giant planets. These ``cold Jupiters,'' giant planets residing beyond the…
astro-ph.EP2025
Optimising Radial Velocity Detection Limits for Southern Habitable Worlds Observatory Targets
Robert A. Wittenmyer, Adriana Errico, Timothy R. Holt +5
The planned NASA Habitable Worlds Observatory (HWO) flagship mission aims to image and spectroscopically characterise 25 Earth-size planets in the habitable zones of their stars. H…