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Manuscript # 2005-06-06921
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| Manuscript # |
2005-06-06921 |
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| Current Revision # | 0 |
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| Submission Date | 15th June 05 |
| Current Stage | Manuscript under submission |
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| Title | Will Deep Impact make a splash? |
| Manuscript Type | Physical Sciences - Article |
| Corresponding Author | Robert Sheldon (NASA/MSFC/NSSTC) . |
| Contributing Author | Richard Hoover |
| Abstract | Recent cometary observations from spacecraft flybys support the
hypothesis that short-period comets have been substantially
modified by the presence of liquid water. Such a model can
resolve many outstanding questions of cometary dynamics, as well
as the differences between the flyby observations and the dirty
snowball paradigm. It predicts that the Deep Impact mission,
slated for a July 4, 2005 collision with Comet Tempel-1, will
encounter a layered, heterogenous nucleus with subsurface liquid
water capped by dense crust. Collision ejecta will include not
only vaporized material, but liquid water and large pieces of
crust. Since the water will immediately boil, the water vapor
signature of Deep Impact may be one to two orders of magnitude
larger than that expected from collisional vaporization alone. |
| Dual Publication | No |
| Conflict of Interest | No |
| Contributing Author Notification | rs |
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