Search
Now showing items 51-54 of 54
Potassium In Globular Cluster Stars: Comparing Normal Clusters To The Peculiar Cluster NGC 2419
(2013-05)
Two independent studies recently uncovered two distinct populations among giants in the distant, massive globular cluster (GC) NGC 2419. One of these populations has normal magnesium (Mg) and potassium (K) abundances for ...
A Search For Stars Of Very Low Metal Abundance. VI. Detailed Abundances Of 313 Metal-Poor Stars
(2014-06)
We present radial velocities, equivalent widths, model atmosphere parameters, and abundances or upper limits for 53 species of 48 elements derived from high resolution optical spectroscopy of 313 metal-poor stars. A majority ...
The O-Na And Mg-Al Anticorrelations In Turn-Off And Early Subgiants In Globular Clusters
(2001-04)
High dispersion spectra (R greater than or similar to 40 000) for a quite large number of stars at the main sequence turn-off and at the base of the giant branch in NGC 6397 and NGC 6752 were obtained with the UVES on ...
A Detailed Study Of Giants And Horizontal Branch Stars In M68: Atmospheric Parameters And Chemical Abundances
(2015-06)
In this paper, we present a detailed high-resolution spectroscopic study of post main sequence stars in the globular cluster (GC) M68. Our sample, which covers a range of 4000K in T-eff, and 3.5 dex in log(g), is comprised ...