Magnetars are highly magnetized neutron stars, the formation mechanism of which is
unknown. Hot helium-rich stars with spectra dominated by emission lines are known as Wolf …

Magnetic confinement of stellar winds leads to the formation of magnetospheres, which can
be sculpted into centrifugal magnetospheres (CMs) by rotational support of the corotating …

We present a review of UV observations of massive stars and their analysis. We discuss O
stars, luminous blue variables, and Wolf–Rayet stars. Because of their effective temperature …

Surface magnetic fields have a strong impact on stellar mass loss and rotation and, as a
consequence, on the evolution of massive stars. In this work, we study the influence of an …

A 70 M black hole (BH) was discovered in the Milky Way disk in a long-period detached
binary system (LB-1) with a high-metallicity 8 M B star companion. Current consensus on …

The last few decades have seen significant progress in our understanding of the occurrence
of magnetic fields in stars with radiative envelopes, in particular in massive stars and in …

ABSTRACT τ Sco, a well-studied magnetic B-type star in the Upper Sco association, has a
number of surprising characteristics. It rotates very slowly and shows nitrogen excess. Its …

Recent large-scale spectropolarimetric surveys have established that a small but significant
percentage of massive stars host stable, surface dipolar magnetic fields with strengths on …

ABSTRACT NGC 1624− 2 is the most strongly magnetized O-type star known. Previous
spectroscopic observations of this object in the ultraviolet provided evidence that it hosts a …

Context. Knowledge about hot, massive stars is usually inferred from quantitative
spectroscopy. To analyse non-spherical phenomena, the existing 1D codes must be …