171 citations · 174 across the 2 of their papers we have counts for
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astro-ph2007★ 171 cited
Evolved stars hint to an external origin of enhanced metallicity in planet-hosting stars
L. Pasquini, M. P. Doellinger, A. Weiss +5
Exo-planets are preferentially found around high metallicity main sequence stars. We aim at investigating whether evolved stars share this property, and what this tells about plane…
astro-ph2007★ 3 cited
A Possible Stellar Metallic Enhancement in Post-T Tauri Stars by a Planetesimal Bombardment
O. C. Winter, R. de la Reza, R. C. Domingos +2
The photospheres of stars hosting planets have larger metallicity than stars lacking planets. In the present work we study the possibility of an earlier metal enrichment of the pho…
astro-ph2005
On the Ages of Exoplanet Host Stars
C. Saffe, M. Gomez, C. Chavero
We obtained spectra, covering the CaII H and K region, for 49 exoplanet host (EH) stars, observable from the southern hemisphere. We measured the chromospheric activity index, Rhk.…