Parent Stars of Extrasolar Planets. VIII. Chemical Abundances for 18 Elements in 31 Stars

Abstract

We present the results of detailed spectroscopic abundance analyses for 18 elements in 31 nearby stars with planets. The resulting abundances are combined with other similar studies of nearby stars with planets and compared to a sample of nearby stars without detected planets. We find some evidence for abundance differences between these two samples for Al, Si and Ti. Some of our results are in conflict with a recent study of stars with planets in the SPOCS database. We encourage continued study of the abundance patterns of stars with planets to resolve these discrepancies.

to be published in MNRAS; 16 pages; contains 8 figures and 8 tables

References in corpus (2)

• Silicon and Nickel Enrichment in Planet-Host Stars: Observations and Implications for the Core-Accretion Theory of Planet Formation
• The Chemical Compositions of Stars with Planets: A Review

Cited by in corpus (17)

• Improved parameters for extrasolar transiting planets
• Stellar Abundances in the Solar Neighborhood: The Hypatia Catalog
• Chemical abundances of 451 stars from the HARPS GTO planet search program: Thin disc, thick disc, and planets
• Stellar parameters and chemical abundances of 223 evolved stars with and without planets
• A high precision chemical abundance analysis of the HAT-P-1 stellar binary: constraints on planet formation
• A Comparison of Stellar Elemental Abundance Techniques and Measurements
• Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program IV. Carbon and C/O ratios for Galactic stellar populations and planet hosts
• Parent Stars of Extrasolar Planets. IX. Lithium Abundances
• Detection of Water Vapor in the Thermal Spectrum of the Non-Transiting Hot Jupiter upsilon Andromedae b
• Detailed elemental abundances of binary stars: Searching for signatures of planet formation and atomic diffusion
• Extending the FIP bias sample to magnetically active stars. Challenging the FIP bias paradigm?
• A Comprehensive Characterization of the 70 Virginis Planetary System
• A magnetic cycle of tau Bootis? The coronal and chromospheric view
• Exclusion of Stellar Companions to Exoplanet Host Stars
• Simulating Reflected Light Exoplanet Spectra of the Promising Direct Imaging Target, $\upsilon$ Andromedae d, with a New, Fast Sampling Method Using the Planetary Spectrum Generator
• Coronae of Stars with Super Solar Elemental Abundances
• X-ray Activity Variations and Coronal Abundances of the Star-Planet Interaction candidate HD 179949