Gas Jets and Ice Grains Ejections on Comets and Enceladus

Details Gas Jets and Ice Grains Ejections on Comets and Enceladus Gas Jets and Ice Grains Ejections on Comets and Enceladus

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmmr23a1676b&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #MR23A-1676

Physics

[6020] Planetary Sciences: Comets And Small Bodies / Ices, [6210] Planetary Sciences: Solar System Objects / Comets, [6261] Planetary Sciences: Solar System Objects / Triton, [6280] Planetary Sciences: Solar System Objects / Saturnian Satellites

Scientific paper

Whenever large fluxes of gas are released from gas pockets below an ice layer, they shatter the overlying ice layer and propel ice grains. Grain ejection operates on Comets, Enceladus' south polar plume, Triton's N2 plumes and on Mars' Polar Regions during their spring. Fig. 1- Ice grains ejection upon warming up a thin ice sample: 100 µm ice layer, covered by 100 µm frozen CO2 and finally by a 100 µm ice layer.
Fig. 2 - Three stages of coverage of the surface of a large ice sample by ice grains.

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