The Mass of the Convective Zone in FGK Main-Sequence Stars and the Effect of Accreted Planetary Material on Apparent Metallicity Determinations

2001/05/15 by M. H. Pinsonneault, D. L. DePoy, M. Coffee · 7 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.1086/323531

Submitted ApJ Letters March 26th; accepted April 30th. 12 pages, 2 figures

arxiv created 2001/05/15 · openalex publication_date 2001/07/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

The mass of the outer convective zone in FGK main-sequence stars decreases dramatically with stellar mass. Therefore, any contamination of a star's atmosphere by accreted planetary material should affect hotter stars much more than cool stars. If high metal abundances in stars with planets were from planetesimal accretion, then metallicity enhancements in earlier type stars with planets should be very pronounced. No such trend is seen, however.

Citations

• Planet Consumption and Stellar Metallicity Enhancements

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