Stellar Parameters of Galactic WC stars
Andreas Sander, Wolf-Rainer Hamann
Since the last large sample of Galactic WC stars had been analyzed in the
middle of the 1990s, significant improvements have been achieved in the simulation of
stellar-wind spectra. We have (partly re-)analyzed all available Galactic WC stars with
the current generation of stellar atmosphere models computed with the Potsdam Wolf-
Rayet (PoWR) code. In contrast to previous results, the obtained stellar parameters
now show a close correlation with the WC subtype. The stellar temperatures form a
sequence from 45 kK (WC9 subtype) to about 120 kK (WC4). For those stars with
known distance, we also derived luminosities using flux-calibrated spectra and photo-
metry.
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