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

Authors
Pinsonneault, MH DePoy, DL Coffee, M
Citation
Mh. Pinsonneault et al., The mass of the convective zone in FGK main-sequence stars and the effect of accreted planetary material on apparent metallicity determinations, ASTROPHYS J, 556(1), 2001, pp. L59-L62
Citations number
30
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
556
Issue
1
Year of publication
2001
Part
2
Pages
L59 - L62
Database
ISI
SICI code
0004-637X(20010720)556:1<L59:TMOTCZ>2.0.ZU;2-8
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 at mosphere by accreted planetary material should affect hotter stars much mor e than cool stars. If high metal abundances in stars with planets were from planetesimal accretion, then metallicity enhancements in earlier type star s with planets should be very pronounced. No such trend is seen, however.