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...

The abundance measurements are based on high-resolution optical spectroscopical data, obtained during 2 observing runs with the Ultraviolet and Visual Echelle...

Numerous spectroscopic studies have shown that stars with giant planets are particularly metal-rich when compared with field stars in the solar neighbourhood. I...

Atomic data and equivalent widths for 15 red clump giants in 5 open clusters: Cr 110, NGC 2099, NGC 2420, M 67, NGC 7789. (2 data files).

High resolution, high S:N spectra are used to determine the abundances of Fe, Ni, Ca, Al and Si in 25 field dwarfs with -1.2 [Fe/H] +0.3. The authors find...

Ground-based observations were used to analyze the CMD over a wide spatial field in the B and V bands and to estimate the atmospheric parameters of the...

Table 8 contains the equatorial coordinates, the atmospheric parameters measured on UVES spectra, UBVI_C photometry from WFI@2.2m telescope and infrared JHK...

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For late-type non-active stars, gravitational redshifts and convective blueshifts are the main source of biases in the determination of radial velocities. If...