2001/11/01 by R. Launhardt, Anneila I. Sargent, A. I. Sargent · 40 citations
Physics and Astronomy · #Accretion (finance) #Accretion disc #Astro and Planetary Science #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Circumstellar disk #Circumstellar dust #Geometry #Millimeter #Optics #Perpendicular #Physics #Protoplanetary disk #RADIUS #Star formation #Stars #Stellar, planetary, and galactic studies #Submillimeter Array #T Tauri star #Wavelength #astro-ph
paper · pdf · doi:10.1086/338193
published in The Astrophysical Journal 562(2), L173-L175 (IOP Publishing) · 4 pages, 3 figures. Accepted by ApJ Letters
arxiv created 2001/11/01 · openalex publication_date 2001/12/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present subarcsecond resolution millimeter-wave images of a circumstellar disk in the Bok globule CB 26. The presence of an edge-on disk is confirmed by the dust continuum morphology and the velocity field of 13 CO emission, which displays a Keplerian rotation pattern about an axis perpendicular to the long axis of the dust emission. We deduce a mass of ~0.3 M ☉ for the obscured central star. The disk is optically thick at millimeter wavelengths inside 120 AU, has a symmetric 20° warp beyond 120 AU, an outer radius of ~200 AU, and a mass of at least 0.1 M ☉ . We suggest that the CB 26 system is in an intermediate stage between deeply embedded protostellar accretion disks and the more evolved, perhaps protoplanetary, disks around T Tauri stars.