As part of a continuing project using planetary nebulae (PNe) to study the chemical evolution and formation history of M31 (see accompanying poster by Balick et...
Extensive spectroscopic studies of stars with and without planets have concluded that stars hosting planets are significantly more metal-rich than those without...
Abundances in stars with giant planets (Beirao+, 2005)
We present Na, Mg and Al abundances in a set of 98 stars with known giant planets, and in a comparison sample of 41 "single" stars. The results show that the [X...
Extensive spectroscopic studies of stars with and without planetary systems have concluded that planet host stars are more metal-rich than those without...
Abundances of 650 bulge red giants (Gonzalez+, 2011)
Listed are the [Mg/Fe], [Ca/Fe], [Ti/Fe] and [Si/Fe] abundance ratios for 650 K giants in four fields of the Galactic Bulge. Abundances were measured using...
Abundances of alpha -elements in the ultra-metal-poor giants CS29498-043 and CS22949-037.
We discuss abundances of alpha -elements in the ultra-metal-poor giants CS29498-043 and CS22949-037. The abundance of oxygen has been derived from measurements...
Abundances of BHB stars in NGC 1904 (Fabbian+, 2005)
The abundance measurements are based on high-resolution optical spectroscopical data, obtained during 2 observing runs with the Ultraviolet and Visual Echelle...
Abundances of Chemical Elements in Stars with Exoplanets
Numerous spectroscopic studies have shown that stars with giant planets are particularly metal-rich when compared with field stars in the solar neighbourhood. I...