* Astronomy

Title: On the nature of the WO3 star DR1 in IC 1613
Author: F. Tramper, G. Gräfener, O.E. Hartoog, H. Sana, A. de Koter, J.S. Vink, L.E. Ellerbroek, N. Langer, M. Garcia, L. Kaper, S.E. de Mink

We present the results of a quantitative spectroscopic analysis of the oxygen-sequence Wolf- Rayet star DR1 in the low-metallicity galaxy IC 1613. Our models suggest that the strong oxygen emission lines are the result of the high temperature of this WO3 star and do not necessarily reflect a more advanced evolutionary stage than WC stars.

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