High-resolution Spectroscopic Observations of a New CH Subgiant Star: BD-03°3668

Details High-resolution Spectroscopic Observations of a New CH Subgiant Star: BD-03°3668 High-resolution Spectroscopic Observations of a New CH Subgiant Star: BD-03°3668

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aj....141...79p&link_type=abstract

The Astronomical Journal, Volume 141, Issue 3, article id. 79 (2011).

Astronomy and Astrophysics

Astronomy

4

Stars: Abundances, Stars: Chemically Peculiar, Stars: Individual: Bd–03°3668

Scientific paper

This work reports on the discovery of a new CH subgiant star BD-03°3668 with a significant overabundance of the elements created by s-process nucleosynthesis, such as barium and lead. Its atmospheric parameters and abundance pattern are determined by employing the local thermodynamic equilibrium model atmospheres of Kurucz using the spectral analysis code MOOG. Due to the low luminosity of this star, the s-process overabundance is better explained by mass transfer from an asymptotic giant branch star in the past.

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