615 citations · 3.1k across the 30 of their papers we have counts for
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Life and Death of Very Massive Stars
Norhasliza Yusof, Hasan Abu Kassima, Raphael Hirschi +4
We recently determined the mass of the most massive star known to the date, R136a1 with a mass at birth 320 times the mass of our sun, as well as the mass of several other stars th…
Gemini GMOS spectroscopy of HeII nebulae in M33
C. Kehrig, M. S. Oey, P. A. Crowther +6
We have carried out a narrow-band survey of the Local Group galaxy, M33, in the HeII4686 emission line, to identify HeII nebulae in this galaxy. With spectroscopic follow-up observ…
The R136 star cluster hosts several stars whose individual masses greatly exceed the accepted 150 Msun stellar mass limit
Paul A Crowther, Olivier Schnurr, Raphael Hirschi +4
Spectroscopic analyses of H-rich WN5-6 stars within the young star clusters NGC 3603 and R136 are presented, using archival HST & VLT spectroscopy, & high spatial resolution near-I…
The Carbon footprint of B[e] supergiants
A. Liermann, M. Kraus, O. Schnurr +1
We report on the first detection of C enhancement in two B[e] supergiants in the Large Magellanic Cloud. Stellar evolution models predict the surface abundance in C t…