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A New Class of Wolf-Rayet Stars: WN3/O3s
Philip Massey, Kathryn F. Neugent, Nidia Morrell +1
Our new survey for Wolf-Rayet stars in the Magellanic Clouds is only 15% complete but has already found 9 new WRs in the LMC. This suggests that the total WR population in the LMC…
The Close Binary Frequency of Wolf-Rayet Stars as a Function of Metallicity in M31 and M33
Kathryn F. Neugent, Philip Massey
Massive star evolutionary models generally predict the correct ratio of WC-type and WN-type Wolf-Rayet stars at low metallicities, but underestimate the ratio at higher (solar and…
A Modern Search for Wolf-Rayet Stars in the Magellanic Clouds: First Results
Philip Massey, Kathryn F. Neugent, Nidia Morrell +1
Over the years, directed surveys and incidental spectroscopy have identified 12 Wolf-Rayet (WR) stars in the SMC and 139 in the LMC, numbers which are often described as "essential…