2002/09/11 by G. Chauvin, T. Fusco, A-M. Lagrange +10
Physics and Astronomy · #Adaptive optics #Angular resolution (graph drawing) #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Be star #Circumstellar disk #Circumstellar dust #Flux (metallurgy) #O-type main-sequence star #Photometry (optics) #Stellar, planetary, and galactic studies #Telescope #astro-ph
paper · pdf · doi:10.1051/0004-6361:20021114
published as Astron.Astrophys. 394 (2002) 219-224 · 5 pages, 4 figures
arxiv created 2002/09/11 · openalex publication_date 2002/10/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present new, high angular resolution images of HD 199143 in the Capricornus association, obtained with the adaptive optics system ADONIS+SHARPII at the ESO 3.6 m Telescope of La Silla Observatory. HD 199143 and its neighbour star HD 358623 (separation ~ away) have previously been imaged with adaptive optics. For each star, a companion has been detected in the J and K bands at respective separations of and (Jayawardhana & Brandeker [CITE]). Our new photometry of HD 199143 B suggests that it is a M2 star and that the presence of circumstellar dust proposed by van den Ancker et al. ([CITE]) is no longer necessary. We show that the 12 μm flux detected by IRAS previously interpreted as an IR excess, can be explained by the presence of the late-type companion.