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Subaru Telescope Observations of Deep Impact.

Authors :
Sugita, S.
Ootsubo, T.
Kadono, T.
Honda, M.
Sako, S.
Miyata, T.
Sakon, I.
Yamashita, T.
Kawakita, H.
Fujiwara, H.
Fujiyoshi, T.
Takato, N.
Fuse, T.
Watanabe, J.
Furusho, R.
Hasegawa, S.
Kasuga, T.
Sekiguchi, T.
Kinoshita, D.
Meech, K.J.
Source :
Science. 10/14/2005, Vol. 310 Issue 5746, p274-278. 5p. 1 Color Photograph, 4 Graphs.
Publication Year :
2005

Abstract

The impact cratering process on a comet is controversial but holds the key for interpreting observations of the Deep Impact collision with comet 9P/Tempel 1. Mid-infrared data from the Cooled Mid-Infrared Camera and Spectrometer (COMICS) of the Subaru Telescope indicate that the large-scale dust plume ejected by the impact contained a large mass (∼10[sup 6] kilograms) of dust and formed two wings approximately ±45° from the symmetric center, both consistent with gravity as the primary control on the impact and its immediate aftermath. The dust distribution in the inner part of the plume, however, is inconsistent with a pure gravity control and implies that evaporation and expansion of volatiles accelerated dust. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00368075
Volume :
310
Issue :
5746
Database :
Academic Search Index
Journal :
Science
Publication Type :
Academic Journal
Accession number :
18673122
Full Text :
https://doi.org/10.1126/science.1119091