Strong winds from massive stars are a topic of interest to a wide range of astrophysical fields. In High-Mass X-ray Binaries the presence of an accreting...

In previous papers we have published preliminary results on the stellar oxygen-abundance gradient in M33 by using B-type supergiants. In the present study, we...

We introduce a new automatic code (StePar) for determinig stellar atmospheric parameters (T_{eff}, log{g}, ξ and [Fe/H]) in an automated way. StePar employs the...

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We are living a renaissance of radio survey work: the size of source catalogues published in the first two years of this decade exceeds that of the entire 1980s...

Wie bei menschlichen Zwillingen können sich auch Sternzwillinge durchaus starkvoneinander unterscheiden. Wie sehr, das hängt in erster Linie von der jeweiligen...

Wie bei menschlichen Zwillingen kännen sich auch Sternzwillinge durchaus stark voneinander unterscheiden. Wie sehr, das hängt in erster Linie von der jeweiligen...

The effect of a spiral-like perturbation in the orbits of an axisymmetric galactic potential is studied using surfaces of section. It is found that the...