The Gaia-ESO Survey (GES) is a large public spectroscopic survey that has collected spectra of about 100,000 stars. The survey provides not only the reduced...
Hot stars in young massive clusters: Mapping the current Galactic metallicity
Young Massive Clusters (YMCs) with ages 6 Myr are ideal tools for mapping the current chemical abundances in the Galactic disk for several reasons. First of...
Hot Subdwarfs: Magnetic, Oscillatory and Other Physical Properties
Hot subdwarf stars (hot sds) are blue subluminous objects. Only a few determinations are available to date regarding the study of such aspects as rotation...
How a dust concentration mimics dynamical signatures around the nucleus of NGC 7331.
Where the pheonomenon of wavelength-dependent kinematics has been observed in galaxies, it has been well modelled as a dust extinction effect. Therefore...
How AMBER will contribute to the search for brown dwarfs and extrasolar giant planets
Various radial velocity surveys have now produced a number of candidates Very Low Mass Stars, Brown Dwarfs and Giant Extrasolar Planets to nearby G, K and M...
How anomalous is the interstellar extinction in NGC 3372, the Carina Nebula?
Near-infrared JHKL photometry of more than 200 stars in the open clusters Tr 14, Tr 15, Tr 16, Cr 228, and Cr 232 in the Carina Nebula is presented. By...
How Binary Stars affect Galactic Chemical Evolution
At least 60% of stars appear to be binary and about half of these are close enough to interact. Because of the enormous expansion on the AGB, many of these...
How do inaccuracies and unresolved structures in the measured solar photospheric magnetic vector influence the accuracy of coronal magnetic field models?
Solar magnetic fields are usually extrapolated into the corona starting from photospheric mag-netic measurements that can suffer from significant uncertainties...