Context: The very young σ Orionis cluster (~3 Ma) is a cornerstone in understanding the formation of stars and substellar objects down to planetary masses...
The bulge luminosity functions in the MSX infrared bands
We use an inversion technique to derive the luminosity functions of the Galactic bulge from point source counts extracted from the Midcourse Space Experiment's...
The bulk of the cosmic infrared background resolved by ISOCAM
Deep extragalactic surveys with ISOCAM revealed the presence of a large density of faint mid-infrared (MIR) sources. We have computed the 15 mu m integrated...
The BVJK Lightcurves of the Shortperiod Eclipsing Binary Cg-Cygni
BVJK light curves of CG Cygni show an apparent infrared excess 0.2 mag out of eclipse, assuming the spectral types of the components to be G9.5V + K3V. The...
The C/O ratio at low metallicity: constraints on early chemical evolution from observations of Galactic halo stars
Aims: We present new measurements of the abundances of carbon and oxygen derived from high-excitation C i and O i absorption lines in metal-poor halo stars...
We report the first detection of Ca II H and K absorption in the high-velocity cloud complex C, the largest HVC. Absorption is detected in the spectra of the...
The CALIFA survey across the Hubble sequence. Spatially resolved stellar population properties in galaxies
Various different physical processes contribute to the star formation and stellar mass assembly histories of galaxies. One important approach to understanding...
The CALIFA view on stellar angular momentum across the Hubble sequence
We present the apparent stellar angular momentum over the optical extent of 300 galaxies across the Hubble sequence using integral-field spectroscopic (IFS)...
The Carina Project. VIII. The α-element abundances
We have performed a new abundance analysis of Carina red giant (RG) stars from spectroscopic data collected with UVES (high spectral resolution) and FLAMES...