Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I Abundances in the Galaxy: field stars
- 1 Metal-rich stars and stellar populations: a brief history and new results
- 2 The metal-rich nature of stars with planets
- 3 Solar chemical peculiarities?
- 4 Kinematics of metal-rich stars with and without planets
- 5 Elemental abundance trends in the metal-rich thin and thick disks
- 6 Metal-rich massive stars: how metal-rich are they?
- 7 Hercules-stream stars and the metal-rich thick disk
- 8 An abundance survey of the Galactic thick disk
- Part II Abundances in the Galaxy: Galactic stars in clusters, bulges and the centre
- Part III Observations – abundances in extragalactic contexts
- Part IV Stellar populations and mass functions
- Part V Physical processes at high metallicity
- Part VI Formation and evolution of metal-rich stars and stellar yields
- Part VII Chemical and photometric evolution beyond Solar metallicity
4 - Kinematics of metal-rich stars with and without planets
Published online by Cambridge University Press: 02 December 2009
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I Abundances in the Galaxy: field stars
- 1 Metal-rich stars and stellar populations: a brief history and new results
- 2 The metal-rich nature of stars with planets
- 3 Solar chemical peculiarities?
- 4 Kinematics of metal-rich stars with and without planets
- 5 Elemental abundance trends in the metal-rich thin and thick disks
- 6 Metal-rich massive stars: how metal-rich are they?
- 7 Hercules-stream stars and the metal-rich thick disk
- 8 An abundance survey of the Galactic thick disk
- Part II Abundances in the Galaxy: Galactic stars in clusters, bulges and the centre
- Part III Observations – abundances in extragalactic contexts
- Part IV Stellar populations and mass functions
- Part V Physical processes at high metallicity
- Part VI Formation and evolution of metal-rich stars and stellar yields
- Part VII Chemical and photometric evolution beyond Solar metallicity
Summary
We present a detailed study on the kinematics of metal-rich stars with and without planets, and their relation with the Hyades, Sirius and Hercules dynamical streams in the Solar neighbourhood. We compare the kinematic behaviour of known planet-host stars with that of the remaining targets belonging to the CORALIE volume-limited sample, in particular its metal-rich population. The high average metallicity of the Hyades stream is confirmed. The planet-host targets exhibit a kinematic behaviour similar to that of the metal-rich comparison subsample, rather than to that of the comparison sample as a whole, thus supporting the hypothesis of a primordial origin for the metal excess observed in stars with known planetary companions. According to the scenarios proposed as an explanation for the dynamical streams, systems with giant planets could have formed more easily in metal-rich inner Galactic regions
- Type
- Chapter
- Information
- The Metal-Rich Universe , pp. 36 - 40Publisher: Cambridge University PressPrint publication year: 2008