The enigmatic B[e] star Hen 2-90 -- an interacting binary?

2004/10/07 by Michaela Kraus, M. Kraus, M. Borges Fernandes +6
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #Astrophysics and Star Formation Studies #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/0410196

5 pages, to appear in proceedings of "Massive Stars in Interacting Binaries", (eds.) A. Moffat & N. St-Louis, ASP Conference Series

arxiv created 2004/10/07 · openalex publication_date 2004/10/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present the enigmatic galactic unclassified B[e] star Hen 2-90. Its optical spectrum is discussed and analysed in terms of the forbidden emission lines coming from a non-spherical wind. The evolutionary phase of Hen 2-90 is discussed. We raise the question whether an interacting binary nature seems to be a possible solution to account for all observed characteristics.

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