We calculate radiatively driven wind models of main-sequence B stars and provide the wind
mass-loss rates and terminal velocities. The main-sequence mass-loss rate strongly …

We present a comprehensive study of X-ray emission by, and wind properties of, massive
magnetic early B-type stars. Dedicated XMM–Newton observations were obtained for three …

Context. According to previous investigations, the effect of diffusion in the stellar
atmospheres and envelopes of hot white dwarfs and subdwarf B (sdB) stars strongly …

Context. Mass-loss rate is one of the most important stellar parameters. Mass loss via stellar
winds may influence stellar evolution and modifies stellar spectrum. Stellar winds of …

Context. CU Vir has been the first main sequence star that showed regular radio pulses that
persist for decades, resembling the radio lighthouse of pulsars and interpreted as auroral …

Context. Fast line-driven stellar winds play an important role in the evolution of planetary
nebulae, even though they are relatively weak. Aims. We provide global (unified) hot star …

Classical Be stars are an enigmatic subclass of rapidly rotating hot stars characterized by
dense equatorial disks of gas that have been inferred to orbit with Keplerian velocities …

Context. B [e] stars are anomalous objects around which extended circumstellar matter is
present. The observed properties of the central star are significantly affected by the …

During the evolution of first stars, the CNO elements may emerge on their surfaces due to
the mixing processes. Consequently, these stars may have winds driven purely by CNO …

We present results of nearly six years of spectroscopic observations of the B [e] star V2028
Cyg. The presence of the cold-type absorption lines combined with a hot-type spectrum …