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29 March 2024
 
  » arxiv » astro-ph/9905011

 Article overview


The WC6 Wolf-Rayet star MLA 1159 in M31 and its ionization nebula BA 1-642
J. Greiner ; G.H. Tovmassian ; S. Komossa ; M. Rosado ; A. Arrieta ;
Date 3 May 1999
Subject astro-ph
AffiliationAstrophys. Inst. Potsdam, Germany), G.H. Tovmassian (UNAM Ensenada, Mexico), S. Komossa (MPE Garching, Germany), M. Rosado and A. Arrieta (both UNAM Ensenada, Mexico
AbstractWe 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.
Source arXiv, astro-ph/9905011
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