The Chemical Compositions of Stars with Planets: A Review

Abstract

A number of trends among the properties of exoplanets have become evident in the years since the first one was announced in 1995. One particularly interesting trend began to emerge in 1997 -- the incidence of giant planets correlates with the metallicity of the host star. This has since been established with a high degree of statistical significance by several research groups. Other, more subtle, trends are beginning to appear as the sample size continues to grow and the statistics improve. I review the state of our knowledge concerning the observed compositional trends and their possible causes and suggest several research directions.

invited review paper for PASP

References in corpus (11)

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Cited by in corpus (18)

• Improving Stellar and Planetary Parameters of Transiting Planet Systems: The Case of TrES-2
• Pollution of single white dwarfs by accretion of many small asteroids
• Stellar Parameters and Metallicities of Stars Hosting Jovian and Neptunian Mass Planets: A Possible Dependence of Planetary Mass on Metallicity
• XO-2b: Transiting Hot Jupiter in a Metal-rich Common Proper Motion Binary
• Stellar parameters and chemical abundances of 223 evolved stars with and without planets
• The Helium abundance and Delta Y / Delta Z in Lower Main Sequence stars
• A Planetary System Around HD 155358: The Lowest Metallicity Planet Host Star
• Metallicities of Planet Hosting Stars: A Sample of Giants and Subgiants
• HADES RV Programme with HARPS-N at TNG XII. The abundance signature of M dwarf stars with planets
• Parent Stars of Extrasolar Planets. VIII. Chemical Abundances for 18 Elements in 31 Stars
• CNO behaviour in planet-harbouring stars. II. Carbon abundances in stars with and without planets using the CH band
• The evolution of CNO elements in galaxies
• Exploring the link between star and planet formation with Ariel
• A vigorous activity cycle mimicking a planetary system in HD200466
• Elodie metallicity-biased search for transiting Hot Jupiters IV. Intermediate period planets orbiting the stars HD43691 and HD132406
• On the Binary Nature of Dust-encircled BD+20 307
• Emerging trends in metallicity and lithium properties of debris disc stars
• A Possible Stellar Metallic Enhancement in Post-T Tauri Stars by a Planetesimal Bombardment