The following document lists the file abstract/HWALKER_VEGAMAP.abs
from catalogue VI/111.
A plain copy of the file
(without headers/trailers) may be downloaded.
One of the exciting discoveries made using IRAS was the dust disc around Vega. So far, only Beta Pic has had its disc confirmed optically, and for many of the Vega-like candidates the disc is only visible between around 20um and 80um. Due to the low spatial resolution of IRAS, relatively little is known about the immediate environment of Vega-like stars in the infrared, and how this influences the observed emission. There is, for example, no reliable information on the boundary between the disc and the surrounding interstellar medium. Complete (oversampled) maps of known Vega-like (beta-Pic-like) stars are proposed, observing at two wavelengths (C_60 and C_90) where the dust emission dominates, in order to investigate the spatial and temperature structure of the circumstellar/interstellar medium around the star.