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Radio observations of candidate magnetic O stars
R. S. Schnerr, K. L. J. Rygl, A. J. van der Horst +5
Context: Some O stars are suspected to have to have (weak) magnetic fields because of the observed cyclical variability in their UV wind-lines. However, direct detections of these…
A preliminary distance to W 75N in the Cygnus X star-forming region
K. L. J. Rygl, A. Brunthaler, K. M. Menten +6
Cygnus X is one of the closest giant molecular cloud complexes and therefore an extensively studied region of ongoing high mass star formation. However, the distance to this region…
Initial phases of massive star formation in high infrared extinction clouds. I. Physical parameters
K. L. J. Rygl, F. Wyrowski, F. Schuller +1
The earliest phases of massive star formation are found in cold and dense infrared dark clouds (IRDCs). Since the detection method of IRDCs is very sensitive to the local propertie…