Sol88
Philosopher
- Joined
- Mar 23, 2009
- Messages
- 8,437
TBH I don't really care what you read. It's a dead argument. Ice grains at Tempel 1, ice grains at Hartley 2, and subsurface ice detected by MIRO at 67P. Game was over years ago.
However, if you want something to read, try this: http://experimentos.labpsico.deusto.es/www.labpsico.deusto.es/articulos/Matute et al. (2010).pdf
Ice grains at Tempel 1, ice grains at Hartley 2
So, why would that be a surprise, Jonedave116? Seems water ice is ubiquitous, at least in our neck of the woods!
Sublimating "Ice" is not necessary to detect water ice grains
Spontaneous formation of nonspherical water ice grains in a plasma environment
Saturn’s rings, terrestrial polar mesospheric clouds, and astrophysical molecular clouds are all dusty plasma environments where tiny grains of water ice are an important constituent.
5. Conclusion
[17] Our results demonstrate that ice grains spontaneously form in a suitably cooled plasma containing water vapour. No external nucleation material is required, i.e., homogeneous ionic nucleation takes place. Furthermore, the ice grains are aspherical when the background pressure is lower than a certain pressure and presumably this aspherical shape develops soon after nucleation rather than later when the grains are large. This result implies that it is plausible that aspherical ice grains are common in naturally occurring plasmas (Saturn’s rings, polar mesosphere clouds, and molecular clouds) in which case existing models assuming spherical grains would have to be revised.
So I guess it is EXPECTED in the electric comet model that there would be ICEY grains in/on and around the nucleus, just not in the required amounts to support the highly energetic "jets" observed for some time @67P!!
just say'n...
PS Charging of ice grains by low-energy plasmas: Application to Saturn's E ring is an interesting read as well
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