Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005dps....37.4202e&link_type=abstract
American Astronomical Society, DPS meeting #37, #42.02; Bulletin of the American Astronomical Society, Vol. 37, p.709
Astronomy and Astrophysics
Astronomy
Scientific paper
Observations of the Deep Impact encounter with comet 9P/Tempel 1 included IR spectroscopy of the initial self-luminous plume produced during the impact. Analysis of the first images of this large scale cratering event is compared with conditions inferred from analyses of visible spectra taken during laboratory hypervelocity experiments at the NASA Ames Vertical Gun Range. Emissions from the earliest stages of cratering formation are controlled by interactions between the projectile and the upper surface of the target. Such experiments reveal impact vaporization processes that evolve through time, especially for surfaces that are made up of thin layers or mixtures of silicates and volatiles. This presentation will focus on the temperature and spectral characteristics of the impact plume. The results of the impact experiments help define the nature of the cometary surface.
Deep Impact Team
Eberhardy Clara A.
Schultz Peter H.
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