A ∼25 K temperature of formation for the submicron ice grains which formed comets |
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Authors: | G Notesco |
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Institution: | Department of Geophysics and Planetary Sciences, Tel-Aviv University, Tel-Aviv 69978, Israel |
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Abstract: | Following the observations of ice grains in cometary comae and their size distributions, we reexamined experimentally our previous conclusion that the ice grains which agglomerated to form comet nuclei were formed at ∼25 K. The suggestion of a ∼25 K formation temperature was confirmed experimentally. Moreover, we suggest that these ice grains had to be of submicron size. |
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Keywords: | Comets Comets origin Ices |
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