Now showing items 1-11 of 11

    • Beryllium Abundances in Halo Stars from Keck/HIRES Observations 

      Boesgaard, A.M.; Deliyannis, C.P.; King, J.R.; Ryan, Sean G.; Vogt, S.; Beers, T.C. (1999)
      We have determined the abundance of Be in stars with an array of metal abundances in order to enhance our understanding of the chemical evolution of the Galaxy, cosmic-ray theory, and cosmology. Observations of the Be II ...
    • Catalog of nearby exoplanets 

      Butler, R.P.; Wright, J.T.; Marcy, G.W.; Fischer, D.A.; Vogt, S.; Tinney, C.G.; Jones, H.R.A.; Carter, B.D.; Johnson, J.A.; McCarthy, C.; Penny, A.J. (2006)
    • First Results from the Anglo-Australian Planet Search: A Brown Dwarf Candidate and a 51 Peg-like Planet 

      Tinney, C.G.; Butler, R.P.; Marcy, G.W.; Jones, H.R.A.; Penny, A.J.; Vogt, S.; Apps, K.; Henry, G.W. (2001-04)
    • Four new exoplanets and hints of additional substellar companions to exoplanet host stars 

      Wright, J.T.; Marcy, G.W.; Fischer, D.A.; Butler, R.P.; Vogt, S.; Tinney, C.G.; Jones, H.R.A.; Carter, B.D.; Johnson, J.A.; McCarthy, C.; Apps, K. (2007)
    • A Goldilocks principle for modelling radial velocity noise 

      Feng, F.; Tuomi, Mikko; Jones, Hugh; Butler, R. P.; Vogt, S. (2016-09-21)
      The doppler measurements of stars are diluted and distorted by stellar activity noise. Different choices of noise models and statistical methods have led to much controversy in the confirmation of exoplanet candidates ...
    • Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307 

      Tuomi, Mikko; Anglada-Escude, Guillem; Gerlach, E.; Jones, H.R.A.; Reiners, A.; Rivera, Eugenio J.; Vogt, S.; Butler, R.P. (2013-01)
      Context. The K2.5 dwarf HD 40307 has been reported to host three super-Earths. The system lacks massive planets and is therefore a potential candidate for having additional low-mass planetary companions. Aims. We re-derive ...
    • A long-period planet orbiting a nearby Sun-like star 

      Jones, H.R.A.; Butler, R.P.; Tinney, C.G.; O'Toole, S.; Wittenmyer, R.; Henry, G.W.; Meschiari, S.; Vogt, S.; Rivera, E.; Laughlin, G.; Carter, B.D.; Bailey, J.; Jenkins, J.S. (2010)
      The Doppler wobble induced by the extra-solar planet HD 134987b was first detected by data from the Keck Telescope nearly a decade ago, and was subsequently confirmed by data from the Anglo-Australian Telescope (AAT). ...
    • A Neptune-mass Planet Orbiting the Nearby G Dwarf HD 16417 

      O'Toole, S.; Tinney, C.G.; Butler, R.P.; Jones, H.R.A.; Bailey, J.; Carter, B.D.; Vogt, S.; Laughlin, G.; Rivera, E. (2009)
      Precision Doppler measurements from an intensive 48 night "Rocky Planet Search" observing campaign on the Anglo-Australian Telescope (AAT) have revealed the presence of a low-mass exoplanet orbiting the G1 dwarf HD 16417. ...
    • Observed Properties of Exoplanets: Masses, Orbits, and Metallicities 

      Marcy, G.W.; Butler, R.P.; Fischer, D.A.; Vogt, S.; Wright, J.T.; Tinney, C.G.; Jones, H.R.A. (2005)
      We review the observed properties of exoplanets found by the Doppler technique that has revealed 152 planets to date. We focus on the ongoing 18-year survey of 1330 FGKM type stars at Lick, Keck, and the Anglo-Australian ...
    • On the Double-Planet System around HD 83443 

      Butler, R.P.; Marcy, G.W.; Vogt, S.; Tinney, C.G.; Jones, H.R.A.; Penny, A.J.; Apps, K.; Carter, B.D. (2002-10)
    • A super-earth and two Neptunes orbiting the nearby sun-like star 61 Virginis 

      Vogt, S.; Wittenmyer, R.; Butler, R.P.; O'Toole, S.; Henry, G.W.; Rivera, E.; Meschiari, S.; Laughlin, G.; Tinney, C.G.; Jones, H.R.A.; Bailey, J.; Carter, B.D.; Batygin, K. (2010)
      We present precision radial velocity data that reveal a multiple exoplanet system orbiting the bright nearby G5V star 61 Virginis. Our 4.6 years of combined Keck/HIRES and Anglo-Australian Telescope precision radial ...