Galactic orbits of stars with planets

Preprint

22 December 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0112535

Abstract

We have reconstructed the galactic orbits of the parent stars of exoplanets. For comparison, we have recalculated the galactic orbits of stars from the Edvardsson et al.(1993) catalog. A comparison between the two samples indicates that stars with planets are not kinematically peculiar. At each perigalactic distance stars with planets have a metallicity systematically larger than the average for the comparison sample. We argue that this result favors scenarios where the presence of planets is the cause of the higher metallicity of stars with planets.

Keywords

STARS WITH PLANETS
ORBITS OF STARS
GALACTIC ORBITS
RECONSTRUCTED
PARENT STARS

All Related Versions

Version 1, 2001-12-22, ArXiv
Published version: Astronomy & Astrophysics, 384 (3), 879.

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