The mass of the convective zone in fgk main sequence stars and the effect of accreted planetary material on apparent metallicity determinations

May, 2001
12 pages
Published in:
  • Astrophys.J.Lett. 556 (2001) L59
e-Print:

Citations per year

2001200420072010201302468
Abstract: (arXiv)
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 recent suggestions that high metal abundances in stars with planets are caused by planetesimal accretion are correct, then metallicity enhancements in earlier-type stars with planets should be very pronounced. No such trend is seen, however.
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