COOL CIRCUMSTELLAR MATTER AROUND NEARBY MAIN-SEQUENCE STARS

作者： H. J. Walker , R. D. Wolstencroft

关键词: Main sequence 、 Spectral line 、 Physics 、 Cosmic dust 、 Astrophysics 、 Point source 、 Circumstellar dust 、 Stars 、 Infrared 、 Vega 、 Astronomy

摘要: Stars are presented which have characteristics similar to Vega and other main-sequence stars with cool dust disks, based on the IRAS Point Source Catalog fluxes. The objects selected a 60 μm/100 μm ratio Vega, β Pic, α PsA, Eri, they also required show evidence of extension in Working Survey Database. fluxes modeled using blackbody energy distribution. temperatures derived range from 50K 650K. diameters disks observed by estimated.