6Li: A Clue for Planet Accretion in Stars
Abstract
Using high quality (S/N ≥ 350) and very high resolution spectra (R≅ 125,000) we have searched for 6Li in stars hosting planets. For this study we have chosen a sample of 15 stars out of which 9 are known to have planets, one is a binary, and 5 are not known to have planets. From detailed profile-fitting analysis of Li resonance line at 6700Å we find no significant amount of 6Li relative to 7Li in any of the planet hosting stars (6Li/7Li <∼0.03).
- Publication:
-
Origin and Evolution of the Elements
- Pub Date:
- 2004
- Bibcode:
- 2004oee..sympE..50R