Abundance ratios of volatile versus refractory elements: hints of pollutions?

Bibcode
2006tafp.conf...78E
Ecuvillon, A.; Israelian, G.; Santos, N. C.; Mayor, M.; Gilli, G.
Bibliographical reference

"Tenth Anniversary of 51 Peg-b: Status of and prospects for hot Jupiter studies. Colloquium held at Observatoire de Haute Provence, France, August 22-25, 2005. Edited by L. Arnold, F. Bouchy and C. Moutou. Published by Frontier Group, Paris (ISBN-2-914601-17.4). Proceedings of the colloquium in PDF format can be downloaded from the URL: http://www.obs-hp.fr/www/pubs/Coll51Peg/proceedings.html (courtesy of Frontier Group), p.78-80"

Advertised on:
2
2006
Number of authors
5
IAC number of authors
0
Citations
1
Refereed citations
1
Description
We present the abundance ratios [X/H] of a large set of chemical species with T_C from 75 to 1600 K in an almost complete set of 105 planet-host stars and in a volume-limited comparison sample of 88 stars without any known planets. The large range of different T_C covered by all the analyzed elements allows us to investigate possible anomalous trends of [X/H] vs. T_C in targets with planets with respect to comparison sample stars. This can give important hints for the detection of pollution events and for the understanding of the relative contribution of the differential accretion to the average metallicity excess found in planet host stars.
Type
Non-refereed

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