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Intrinsic iron spread and a new metallicity scale for globular clusters
We have collected spectra of about 2000 red giant branch (RGB) stars in 19 Galactic globular clusters (GC) using FLAMES@VLT (about 100 stars with GIRAFFE and about 10 with UVES, respectively, in each
Na-O anticorrelation and HB. VIII. Proton-capture elements and metallicities in 17 globular clusters
We present homogeneous abundance determinations for iron and some of the elements involved in the proton-capture reactions (O, Na, Mg, Al, and Si) for 202 red giants in 17 Galactic globular clusters
Stellar population models of Lick indices with variable element abundance ratios
We provide the whole set of Lick indices fromCN1 to TiO2 in the wavelength range 4000≲λ≲6500 A of simple stellar population models with, for the first time, variable element abundance ratios, [α/Fe
The statistics of lambda CDM Halo Concentrations
We use the Millennium Simulation (MS) to study the statistics of Λ cold dark matter (ΛCDM) halo concentrations at z= 0. Our results confirm that the average halo concentration declines monotonically
Ages and metallicities of early-type galaxies in the SDSS: new insight into the physical origin of the colour-magnitude and the Mg2-sigmaV relations
We exploit recent constraints on the ages and metallicities of early-type galaxies in the Sloan Digital Sky Survey (SDSS) to gain new insight into the physical origin of two fundamental relations
Detailed abundances of a large sample of giant stars in M 54 and in the Sagittarius nucleus
Homogeneous abundances of light elements, α-elements, and Fe-group elements from high-resolution FLAMES spectra are presented for 76 red giant stars in NGC 6715 (M 54), a massive globular cluster
Formation and Evolution of Galaxy Dark Matter Halos and Their Substructure
We use the "Via Lactea" simulation to study the co-evolution of a Milky Way-sized ΛCDM halo and its subhalo population. While most of the host halo mass is accreted over the first 6 Gyr in a series
Comprehensive nucleosynthesis analysis for ejecta of compact binary mergers
We present a comprehensive study of r-process element nucleosynthesis in the ejecta of compact binary mergers (CBMs) and their relic black-hole (BH)-torus systems. The evolution of the BH-accretion
Systematics of dynamical mass ejection, nucleosynthesis, and radioactively powered electromagnetic signals from neutron-star mergers
We investigate systematically the dynamical mass ejection, r-process nucleosynthesis, and properties of electromagnetic counterparts of neutron-star (NS) mergers in dependence on the uncertain
Dark Matter Substructure and Gamma-Ray Annihilation in the Milky Way Halo
We present initial results from Via Lactea, the highest resolution simulation to date of Galactic CDM substructure. It follows the formation of a Milky Way-sized halo with Mhalo = 1.8 ? 1012 M? in a