On the nature of the WO3 star DR1 in IC 1613

A. de Koter; F. Tramper; G. Gr\"afener; H. Sana; J.S. Vink; L.E. Ellerbroek; L. Kaper; M. Garcia; N. Langer; O.E. Hartoog

arxiv: 1312.1555 · v1 · pith:LZYHA4UGnew · submitted 2013-12-05 · 🌌 astro-ph.SR

On the nature of the WO3 star DR1 in IC 1613

F. Tramper , G. Gr\"afener , O.E. Hartoog , H. Sana , A. de Koter , J.S. Vink , L.E. Ellerbroek , N. Langer

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M. Garcia L. Kaper S.E. de Mink

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keywords staradvancedanalysisemissionevolutionarygalaxyhighlines

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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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On the nature of the WO3 star DR1 in IC 1613

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