Super-metal rich stars and planet-harboring stars

Details Super-metal rich stars and planet-harboring stars Super-metal rich stars and planet-harboring stars

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004asthe..97..328o&link_type=abstract

The Astronomical Herald (ISSN 0374-2466), Vol. 97, No. 6, p. 328 - 334 (2004)

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Metal-Rich Stars, Exoplanets

Scientific paper

It is knwon that many planet-harboring stars are metal-rich, and thus these stars can be regarded as being closely related with the traditionally known group of super-metal-rich (SMR) stars. To examine their mutual relation and their origin, I started to explore the chemical abundance analysis of the SMR stars which are not known to have planets. A SMR star candidate, 31 Aql (HR 7373, G8IV) is examined as a first step. The chemical abundances of 27 elements (C through Eu) in 31 Aql are derived, using HIDES at Okayama. Iron is definitely overabundant with respect to the Sun, [Fe/H]=+0.35±0.05, and all other elements are found to be also enhanced, but without particular abundance pattern against the atomic number and the condensation temperature.

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