Chemical Properties of Stars with Giant Planets

Bibcode
2006ISSIR...6....3S
Santos, N. C.; Mayor, M.; Israelian, G.
Bibliographical reference

In: Planetary Systems and Planets in Systems / Stephane Udry, Willy Benz and Rudolf von Steiger (eds.). ISSI Scientific Reports Series, ESA/ISSI. ISBN 978-92-9221-935-2, 2006, p. 3-16

Advertised on:
2006
Number of authors
3
IAC number of authors
1
Citations
0
Refereed citations
0
Description
In this paper we review the current situation regarding the study of the metallicity-giant planet connection. We show that planet-host stars are more metal-rich than average field dwarfs, a trend that remains after the discovery of now more than about 100 planets. Current results also point out that the planetary frequency is rising as a function of the [Fe/H]. Furthermore, the source of this high metallicity is shown to have most probably an original source, although there are also some evidences for stellar pollution. These facts seem to be telling us that the metallicity is playing a very important role in the formation of the now discovered giant planets. We further compare the orbital properties (minimum mass, period and eccentricity) of planet hosts with their chemical abundances. Some slight trends are seen and discussed.
Type
Non-refereed
Exoplanets

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