(1) School of Mathematics, University of Wales Cardiff, CF1 1XL Cardiff;(2) 102 Admirals Walk, West Cliff Road, BH2 5HF Bournemouth;(3) School of Pure and Applied Biology, University of Wales Cardiff, P.O. Box 915, CF1 3TL Cardiff
Abstract:
The prodigious output of dust and CO observed in comet Hale-Bopp at a heliocentric distance of 6.5 AU is strongly suggestive of high-pressure release of material from liquified subsurface domains rather than thermal evaporation from a sunlit patch of frozen CO.