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Nucleosynthesis And The Inhomogeneous Chemical Evolution Of The Carina Dwarf Galaxy
(2012-06)
The detailed abundances of 23 chemical elements in nine bright red giant branch stars in the Carina dwarf spheroidal galaxy are presented based on high-resolution spectra gathered at the Very Large Telescope (VLT) and ...
VLT/FLAMES Spectroscopy Of Red Giant Branch Stars In The Fornax Dwarf Spheroidal Galaxy
(2014-12)
Context. Fornax is one of the most massive dwarf spheroidal galaxies in the Local Group. The Fornax field star population is dominated by intermediate age stars but star formation was going on over almost its entire history. ...
Multi-Element Abundance Measurements From Medium-Resolution Spectra. I. The Sculptor Dwarf Spheroidal Galaxy
(2009-11)
We present measurements of Fe, Mg, Si, Ca, and Ti abundances for 388 radial velocity member stars in the Sculptor dwarf spheroidal galaxy (dSph), a satellite of the Milky Way (MW). This is the largest sample of individual ...
VLT/FLAMES Spectroscopy Of Red Giant Branch Stars In The Fornax Dwarf Spheroidal Galaxy
(2014-12)
Context. Fornax is one of the most massive dwarf spheroidal galaxies in the Local Group. The Fornax field star population is dominated by intermediate age stars but star formation was going on over almost its entire history. ...
Oxygen Abundances In Low- And High-Alpha Field Halo Stars And The Discovery Of Two Field Stars Born In Globular Clusters
(2012-10)
Oxygen abundances of 67 dwarf stars in the metallicity range -1.6 < [Fe/H] < -0.4 are derived from a non-LTE analysis of the 777 nm O I triplet lines. These stars have precise atmospheric parameters measured by Nissen and ...
An Upper Limit On The Sulphur Abundance In HE 1327-2326
(2012-08)
Context. Star HE 1327-2326 is a unique object, with the lowest measured iron abundance ([Fe/H] similar to -6) and a peculiar chemical composition that includes large overabundances of C, N, and O with respect to iron. One ...
The Stellar Content Of The Hamburg/ESO Survey V. The Metallicity Distribution Function Of The Galactic Halo
(2009-11)
We determine the metallicity distribution function (MDF) of the Galactic halo by means of a sample of 1638 metal-poor stars selected from the Hamburg/ESO objective-prism survey (HES). The sample was corrected for minor ...