Discovery of an 86 AU Radius Debris Ring around HD 181327

Glenn Schneider , Murray D. Silverstone , Dean C. Hines , Jean-Charles Augereau (1) , Christophe Pinte (1) , François Ménard (1) , John Krist , Mark Clampin , Carol Grady , David Golimowski , David Ardila , Thomas Henning , Sebastian Wolf , Jens Rodmann

1 LAOG - Laboratoire d'Astrophysique de Grenoble

HST NICMOS PSF-subtracted coronagraphic observations of HD 181327 have revealed the presence of a ringlike disk of circumstellar debris seen in 1.1 μm light scattered by the disk grains, surrounded by a diffuse outer region of lower surface brightness. The annular disk appears to be inclined by 31.7d+/-1.6d from face-on, with the disk major-axis P.A. at 107deg+/-2deg. The total 1.1 μm flux density of the light scattered by the disk (at 1.2"

Glenn Schneider, Murray D. Silverstone, Dean C. Hines, Jean-Charles Augereau, Christophe Pinte, et al.. Discovery of an 86 AU Radius Debris Ring around HD 181327. The Astrophysical Journal, 2006, 650, pp.414. ⟨10.1086/506507⟩. ⟨hal-00398259⟩