GASS: The Parkes Galactic All-Sky Survey. I. Survey Description, Goals, and Initial Data Release

N. M. McClure-Griffiths, D. J. Pisano, M. R. Calabretta +11

The Parkes Galactic All-Sky Survey (GASS) is a survey of Galactic atomic hydrogen (HI) emission in the Southern sky covering declinations $\delta \le 1^{\circ }$ using the Parkes Radio T…