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==> In this proposal, more time is being requested for HWALKER.VEGAMAP
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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/candidates in the infrared, and how this
influences the observed emission. Complete (oversampled) maps of Vega-like
(beta-Pic-like) candidates 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. The observation
already made of Vega with this mode shows this technique can resolve
the disc.
Time was awarded in the pre-launch call to make maps of 2 targets, time
to map more targets is requested.