2015/07/03 by F. Tramper, Samayra Straal, S. M. Straal +8 · 1 voice · 1 citation
Physics and Astronomy · #Gamma-ray bursts and supernovae #Stellar, planetary, and galactic studies #Astronomy and Astrophysical Research
paper · pdf · doi:10.1051/0004-6361/201425390
Context. Oxygen sequence Wolf-Rayet (WO) stars are a very rare stage in the evolution of massive stars. Their spectra show strong emission lines of helium-burning products, in particular highly ionized carbon and oxygen. The properties of WO stars can be used to provide unique constraints on the (post-)helium burning evolution of massive stars, and their remaining lifetimes and the expected properties of their supernovae.