Galactic cirrus emission at far-infrared wavelengths affects many extragalactic observations. Separating this emission from that associated with extragalactic...
On the origin of magnetic driven winds and the structure of the galactic dynamo in isolated galaxies
We investigate the build-up of the galactic dynamo and subsequently the origin of a magnetic driven outflow. We use a set-up of an isolated disc galaxy with a...
On the origin of reverse polarity patches found by Hinode in sunspot penumbrae
Context: The topology of penumbral magnetic fields is poorly known. The satellite Hinode has recently revealed penumbral structures of a magnetic polarity that...
On the origin of stars with and without planets. Tc trends and clues to Galactic evolution
We explore a sample of 148 solar-like stars to search for a possible correlation between the slopes of the abundance trends versus condensation temperature...
We present high-resolution optical spectroscopy of the X-ray binary system SS433, obtained over a wide range of orbital phases. The spectra display numerous...
On the origin of the angular momentum of galaxies: cosmological tidal torques supplemented by the Coriolis force
We present here a theoretical model which can at least contribute to the observed relation between the specific angular momenta of galaxies and their masses...
On the Origin of the Color-Magnitude Relation in the Virgo Cluster
We explore the origin of the color-magnitude relation (CMR) of early-type galaxies in the Virgo Cluster using spectra of very high signal-to-noise ratio for six...
On the origin of the compact H ii regions around massive stellar clusters
The existence of compact H ii regions around massive stellar clusters with ages exceeding several Myr challenges our understanding of the physical processes...
On the Origin of the Dispersion in the 7Li/6Li Ratio in the ISM
Measurements of the 7Li/6Li ratio in the local interstellar medium (ISM) towards o Per and ζ Per by Knauth et al. (2000, AAA 073.131.129) show clouds with a...