2000/12/01 by C. A. Grady, David Devine, B. E. Woodgate +7 · 9 citations
Physics and Astronomy · #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #Astro and Planetary Science
paper · pdf · doi:10.1086/317222
openalex publication_date 2000/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Coronagraphic imaging with the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope reveals a ~450 AU radius circumstellar disk around the Herbig Ae star HD 163296. A broadband (0.2-1.0 μm) reflected light image shows the disk oriented at a position angle of 140° ± 5° and inclined to our line of sight by ~60° ± 5°. The disk includes an annulus of reduced scattering at 325 AU and exhibits a flat trend of surface brightness in to 180-122 AU (1 5-1''), consistent with a cleared central zone. For r ≥ 370 AU the disk surface brightness drops as r to the approximately -3.5 power. The disk cannot be traced beyond 450 AU in our data. The disk is accompanied by a chain of nebulosities at P.A.=42 5±3 5, compatible with detection of a Herbig-Haro flow. The HD 163296 disk most closely resembles the disk of HD 141569. As in the HD 141569 system, the dynamical effects of a planet may be necessary to explain the structure in the outer disk.