Browsing by Author "Butler, R.P."

Now showing items 1-20 of 36

    • The 2:1 resonant exoplanetary system orbiting HD 73526 

      Tinney, C.G.; Butler, R.P.; Marcy, G.W.; Jones, H.R.A.; Laughlin, G.; Carter, B.D.; Bailey, J.; O'Toole, S. (2006)
      We report the detection of a second exoplanet orbiting the G6 V dwarf HD 73526. This second planet has an orbital period of 377 days, putting it in a 2:1 resonance with the previously known exoplanet, the orbital period ...

    • The abundance distribution of stars with planets 

      Bond, J.; Tinney, C.G.; Butler, R.P.; Jones, H.R.A.; Marcy, G.W.; Penny, A.J.; Carter, B.D. (2006)
      We present the results of a uniform, high-precision spectroscopic metallicity study of 136 G-type stars from the Anglo-Australian Planet Search, 20 of which are known to harbour extrasolar planets (as at July 2005). ...

    • An activity catalogue of southern stars 

      Jenkins, J.S.; Jones, H.R.A.; Tinney, C.G.; Butler, R.P.; McCarthy, C.; Marcy, G.W.; Pinfield, D.J.; Carter, B.D.; Penny, A.J. (2006)
      We have acquired high-resolution echelle spectra of 225 F6-M5 type stars in the southern hemisphere. The stars are targets or candidates to be targets for the Anglo- Australian Planet Search. CaII HK line cores were used ...

    • Beyond the Iron Peak: r- and s-process Elemental Abundances in Stars with Planets 

      Bond, J.; Lauretta, D.S.; Tinney, C.G.; Butler, R.P.; Marcy, G.W.; Jones, H.R.A.; Carter, B.D.; O'Toole, S.; Bailey, J. (2008)
      We present elemental abundances of 118 stars (28 of which are known extrasolar planetary host stars) observed as part of the Anglo-Australian Planet Search. Abundances of O, Mg, Cr, Y, Zr, Ba, Nd, and Eu (along with ...

    • 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)

    • Constraining the difference in convective blueshift between the components of alpha Centauri with precise radial velocities 

      Pourbaix, D.; Nidever, D.; Butler, R.P.; Tinney, C.G.; Marcy, G.W.; Jones, H.R.A.; Penny, A.J.; Carter, B.D.; Bouchy, F.; Pepe, F.; Hearnshaw, J.B.; Skulijan, J.; Ramm, D.; Kent, D. (2002-04)
      New radial velocities of 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. (2001) to improve the precision of the orbital ...

    • Echelle spectroscopy of CaII HK activity in Southern Hemisphere planet search targets 

      Tinney, C.G.; McCarthy, C.; Jones, H.R.A.; Butler, R.P.; Carter, B.D.; Marcy, G.W.; Penny, A.J. (2002-05)

    • An exoplanet in orbit around Tau1 Gruis 

      Jones, H.R.A.; Butler, R.P.; Tinney, C.G.; Marcy, G.W.; Penny, A.J.; McCarthy, C.; Carter, B.D. (2003-05)
      We report the detection of a new candidate exoplanet around the metal- rich star 1 Gruis. With M sin i = 1.23±0.18 MJUP, a period of 1326±300 d and an orbit with an eccentricity of 0.14±0.14 it adds to the growing popula- ...

    • Extrasolar planets around HD 196050, HD 216437 and HD 160691 

      Jones, H.R.A.; Butler, R.P.; Marcy, G.W.; Tinney, C.G.; Penny, A.J.; McCarthy, C.; Carter, B.D. (2002-12)

    • 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)

    • Four New Planets Orbiting Metal-enriched Stars 

      Tinney, C.G.; Butler, R.P.; Marcy, G.W.; Jones, H.R.A.; Penny, A.J.; Carter, B.D.; Bond, J. (2003-04)

    • The frequency of low-mass exoplanets 

      O'Toole, S.; Jones, H.R.A.; Tinney, C.G.; Butler, R.P.; Marcy, G.W.; Carter, B.D.; Bailey, J.; Wittenmyer, R. (2009)
      We report first results from the Anglo-Australian Telescope Rocky Planet Search—an intensive, high-precision Doppler planet search targeting low-mass exoplanets in contiguous 48 night observing blocks. On this run, we ...

    • The frequency of low-mass exoplanets. II. The "Period Valley" 

      Wittenmyer, R.; O'Toole, S.; Jones, H.R.A.; Tinney, C.G.; Butler, R.P.; Carter, B.D.; Bailey, J. (2010)
      Radial-velocity planet search campaigns are now beginning to detect low-mass "Super-Earth" planets, with minimum masses M sin i 10 M ⊕. Using two independently developed methods, we have derived detection limits from nearly ...

    • 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 ...

    • HD10647 and the Distribution of Exoplanet Properties with semi-major axis 

      Jones, H.R.A.; Butler, R.P.; Tinney, C.G.; Marcy, G.W.; McCarthy, C.; Carter, B.D.; Penny, A.J. (Astronomical Society of the Pacific, 2004)
      At this conference Mayor et al. announced evidence for an exoplanet in orbit around HD10647. Here we consider the Anglo-Australian Planet Search dataset for HD10647. Our dataset amply covers the claimed orbital period and ...

    • High-eccentricity planets from the Anglo-Australian planet search 

      Jones, H.R.A.; Butler, R.P.; Tinney, C.G.; Marcy, G.W.; Carter, B.D.; Penny, A.J.; McCarthy, C.; Bailey, J. (2006)
      We report Doppler measurements of the stars HD 187085 and HD 20782 which indi- cate two high eccentricity low-mass companions to the stars. We find HD 187085 has a Jupiter-mass companion with a 1000 d orbit. Our formal ...

    • A Jupiter-Like Planet Orbiting the Nearby M dwarf GJ 832 

      Bailey, J.; Butler, R.P.; Tinney, C.G.; Jones, H.R.A.; O'Toole, S.; Carter, B.D.; Marcy, G.W. (2009)

    • 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). ...

    • Multiple Companions to HD 154857 and HD 160691 

      McCarthy, C.; Butler, R.P.; Tinney, C.G.; Jones, H.R.A.; Marcy, G.W.; Carter, B.D.; Penny, A.J.; Fischer, D.A. (2004)