Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program

Context. We performed a uniform and detailed abundance analysis of 12 refractory elements (Na, Mg, Al, Si, Ca, Ti, Cr, Ni, Co, Sc, Mn, and V) for a sample of 1111 FGK dwarf stars from the HARPS GTO planet search program. Of these stars, 109 are known to harbor giant planetary companions and 26 stars are exclusively hosting Neptunians and super-Earths. Aims. The two main goals of this paper are to investigate whether there are any differences between the elemental abundance trends for stars of different stellar populations and to characterize the planet host and non-host samples in terms of their [X/H]. The extensive study of this sample, focused on the abundance differences between stars with and without…

• MD
  Ministerio de Ciencia e Innovación
• MD
  Ministério da Ciência, Tecnologia e Ensino Superior
• FP
  Fundação para a Ciência e a Tecnologia

  Award: Ciência 2007