Metallicity, planetary formation and migration

Abstract

Recent observations show a clear correlation between the probability of hosting a planet and the metallicity of the parent star. Since radial velocity surveys are biased, however, towards detecting planets with short orbital periods, the probability-metallicity correlation could merely reflect a dependence of migration rates on metallicity. We investigated the possibility, but find no basis to suggest that the migration process is sensitive to the metallicity. The indication is, therefore, that a higher metallicity results in a higher probability for planet formation.

4 pages

References in corpus (7)

• Models of the in situ formation of detected extrasolar giant planets
• Local Magnetohydrodynamical Models of Layered Accretion Disks
• Formation of giant planets by fragmentation of protoplanetary disks
• The effect of cooling on the global stability of self-gravitating protoplanetary discs
• A Young White Dwarf Companion to Pulsar 1620-26: Evidence for Early Planet Formation
• The Origin of Cosmic Dust
• Orbital migration and the frequency of giant planet formation

Cited by in corpus (16)

• Improved parameters for extrasolar transiting planets
• XO-3b: A Massive Planet in an Eccentric Orbit Transiting an F5V Star
• Evolved stars hint to an external origin of enhanced metallicity in planet-hosting stars
• Double-blind test program for astrometric planet detection with Gaia
• A Keck HIRES Doppler Search for Planets Orbiting Metal-Poor Dwarfs. II. On the Frequency of Giant Planets in the Metal-Poor Regime
• Elemental abundances of low-mass stars in nearby young associations: AB Doradus, Carina Near, and Ursa Major
• Astrometric Methods and Instrumentation to Identify and Characterize Extrasolar Planets: A Review
• On the Possible Correlation Between the Orbital Periods of Extra-solar Planets and the Metallicity of the Host Stars
• Rapid Formation of Super-Earths around M Dwarf Stars
• Extrasolar planet taxonomy: a new statistical approach
• A Keck/HIRES Doppler Search for Planets Orbiting Metal-Poor Dwarfs. I. Testing Giant Planet Formation and Migration Scenarios
• The metal rich abundance pattern - spectroscopic properties and abundances for 107 main-sequence stars
• The HARPS search for southern extra-solar planets XII. A giant planet orbiting the metal-poor star HD171028
• How special is the Solar System?
• Detection and Characterization of Extrasolar Planets through Doppler Spectroscopy
• The bi-modal ${}^7$Li distribution of the Milky Way's thin-disk dwarf stars: The role of Galactic-scale events and stellar evolution