2004/07/16 by Ehud Behar, Maurice A. Leutenegger, Maurice Leutenegger +10 · 2 citations
Physics and Astronomy · #Astro and Planetary Science #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1086/424485
published as Astrophys.J. 612 (2004) L65-L68 · To be published in ApJ
arxiv created 2004/07/16 · openalex publication_date 2004/08/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
We present high-resolution X-ray observations of the chemically peculiar late-type B star μ Lep. However, we find spectroscopic and astrometric evidence, which shows that the X-rays are not traced back to the B star itself but rather to a previously unresolved companion, μ Lep-B, whose X-ray spectrum resembles that of a coronally active source. We discuss the possibility that μ Lep-B is a pre-main-sequence companion, most likely of the nonaccreting magnetically active type.