We present recent results for galactic WNL stars, obtained with the new Potsdam Wolf-Rayet (PoWR) hydrodynamic model atmospheres. Based on a combination of stellar wind modeling and spectral analysis we identify the galactic WNL subtypes as a group of extremely luminous stars close to the Eddington limit. Their luminosities imply progenitor masses around 120 solar masses or even above, making them the direct descendants of the most massive stars in the galaxy. Because of the proximity to the Eddington limit our models are very sensitive to the L/M ratio, thus allowing for a direct estimate of the present masses of these objects
Context. Wolf-Rayet (WR) stars have a severe impact on their environments owing to their strong ioni...
Context. Wolf-Rayet (WR) stars have a severe impact on their environments owing to their strong ioni...
Context. Wolf-Rayet (WR) stars have a severe impact on their environments owing to their strong ioni...
Context. The mass loss from Wolf-Rayet (WR) stars is of fundamental importance for the final fate o...
Context. The mass loss from Wolf-Rayet (WR) stars is of fundamental importance for the final fate o...
Context. Massive stars, although being important building blocks of galaxies, are still not fully un...
Context. Comprehensive studies of Wolf-Rayet stars were performed in the past for the Galactic and t...
Here we examine 12 Galactic clusters and OB associations containing Wolf-Rayet stars (W-Rs) and/or L...
Context.Very massive stars pass through the Wolf-Rayet (WR) stage before they finally explode. Detai...
CONTEXT: Very massive stars pass through the Wolf-Rayet (WR) stage before they finally explode. Deta...
In a previous paper on the Magellanic Clouds, we demonstrated that coeval clusters provide a powerfu...
Context. The life cycles of massive stars from the main sequence to their explosion as sup...
Context. Massive stars, although being important building blocks of galaxies, are still not fully un...
In a previous paper on the Magellanic Clouds, we demonstrated that coeval clusters provide a powerfu...
Context. Comprehensive studies of Wolf-Rayet stars were performed in the past for the Galactic and t...
Context. Wolf-Rayet (WR) stars have a severe impact on their environments owing to their strong ioni...
Context. Wolf-Rayet (WR) stars have a severe impact on their environments owing to their strong ioni...
Context. Wolf-Rayet (WR) stars have a severe impact on their environments owing to their strong ioni...
Context. The mass loss from Wolf-Rayet (WR) stars is of fundamental importance for the final fate o...
Context. The mass loss from Wolf-Rayet (WR) stars is of fundamental importance for the final fate o...
Context. Massive stars, although being important building blocks of galaxies, are still not fully un...
Context. Comprehensive studies of Wolf-Rayet stars were performed in the past for the Galactic and t...
Here we examine 12 Galactic clusters and OB associations containing Wolf-Rayet stars (W-Rs) and/or L...
Context.Very massive stars pass through the Wolf-Rayet (WR) stage before they finally explode. Detai...
CONTEXT: Very massive stars pass through the Wolf-Rayet (WR) stage before they finally explode. Deta...
In a previous paper on the Magellanic Clouds, we demonstrated that coeval clusters provide a powerfu...
Context. The life cycles of massive stars from the main sequence to their explosion as sup...
Context. Massive stars, although being important building blocks of galaxies, are still not fully un...
In a previous paper on the Magellanic Clouds, we demonstrated that coeval clusters provide a powerfu...
Context. Comprehensive studies of Wolf-Rayet stars were performed in the past for the Galactic and t...
Context. Wolf-Rayet (WR) stars have a severe impact on their environments owing to their strong ioni...
Context. Wolf-Rayet (WR) stars have a severe impact on their environments owing to their strong ioni...
Context. Wolf-Rayet (WR) stars have a severe impact on their environments owing to their strong ioni...