Browsing by Author "O'Toole, Simon"

Now showing items 1-3 of 3

    • The Anglo-Australian planet search. XX. A solitary ice-giant planet orbiting HD 102365 

      Tinney, C. G.; Butler, R. Paul; Jones, H.R.A.; Wittenmyer, Robert A.; O'Toole, Simon; Bailey, Jeremy; Carter, Brad D. (2011)
      We present 12 years of precision Doppler data for the very nearby G3 star HD 102365, which reveals the presence of a Neptune-like planet with a 16.0 M-Earth minimum mass in a 122.1 day orbit. Very few "Super Earth" planets ...

    • MagAO Imaging of Long-period Objects (MILO). II. A Puzzling White Dwarf around the Sun-like Star HD 11112 

      Rodigas, Timothy J.; Bergeron, P.; Simon, Amelie; Arriagada, Pamela; Faherty, Jackie; Anglada-Escude, Guillem; Mamajek, Eric E.; Weinberger, Alycia; Butler, R. Paul; Males, Jared R.; Morzinski, Katie; Close, Laird M.; Hinz, Philip M.; Bailey, Jeremy; Carter, Brad; Jenkins, James S.; Jones, Hugh; O'Toole, Simon; Tinney, C. G.; Wittenmyer, Rob; Debes, John (2016-11-10)
      HD 11112 is an old, Sun-like star that has a long-term radial velocity (RV) trend indicative of a massive companion on a wide orbit. Here we present direct images of the source responsible for the trend using the Magellan ...

    • Revised Architecture and Two New Super-Earths in the HD 134606 Planetary System 

      Li, Zhexing; Kane, Stephen R.; Brandt, Timothy D.; Fetherolf, Tara; Robertson, Paul; Zhao, Jinglin; Dalba, Paul A.; Wittenmyer, Robert A.; Butler, R. Paul; Diaz, Matias R.; Howell, Steve B.; Bailey, Jeremy; Carter, Brad; Furlan, Elise; Gnilka, Crystal L.; Jones, Hugh R. A.; O'Toole, Simon; Tinney, Chris (2024-04-01)
      Multiplanet systems exhibit a diversity of architectures that diverge from the solar system and contribute to the topic of exoplanet demographics. Radial velocity (RV) surveys form a crucial component of exoplanet surveys, ...