Velocity Distributions of Fragments in Oblique Impact Cratering on Gypsum

Details Velocity Distributions of Fragments in Oblique Impact Cratering on Gypsum Velocity Distributions of Fragments in Oblique Impact Cratering on Gypsum

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icbg.conf...56o&link_type=abstract

Impact Cratering: Bridging the Gap Between Modeling and Observations, p. 56

Physics

Velocity Distribution, Fragmentation, Impact Damage, Cratering, Porous Materials, Gypsum, Targets, Low Speed, Low Density Materials, High Speed Cameras, Ejecta

Scientific paper

In order to understand the behavior of the impact-induced fragments on the small asteroid, oblique impact cratering experiments were produced using gypsum targets, which were used as one of porous and low density materials. The fragment size and velocity were measured for fragments larger than 1mm in diameter, and slower than 200m/sec. A high speed CCD video camera was used to see the fragments in flight, and secondary collisions with a window of the target chamber were also employed to measure fragment velocity. Especially, we focused to measure the behaviors of very low velocity fragments, which have special meaning for the ejecta on very small asteroids.

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