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arxiv: astro-ph/9905011 · v1 · submitted 1999-05-03 · 🌌 astro-ph

The WC6 Wolf-Rayet star MLA 1159 in M31 and its ionization nebula BA 1-642

J. Greiner (Astrophys. Inst. Potsdam , Germany) , G.H. Tovmassian (UNAM Ensenada , Mexico) , S. Komossa (MPE Garching , M. Rosado , A. Arrieta (both UNAM Ensenada This is my paper
classification 🌌 astro-ph
keywords nebulaionizationwolf-rayetobservationsstarallowandromedaassociation
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We report on optical imaging and spectroscopic observations of the Wolf-Rayet candidate star MLA 1159 and the surrounding ionization nebula BA 1-642 in the Andromeda Galaxy. Though both objects have been known for many years, our observations (1) confirm the Wolf-Rayet nature of MLA 1159, (2) allow one to determine the nebula as an ionization nebula, and (3) demonstrate the association of MLA 1159 with the nebula. The supersoft X-ray source RX J0045.5+4206 whose error box encompasses the full nebula, seems to be a chance superposition and not related to MLA 1159 and/or BA 1-642.

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