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Asteroid Cratering

Neukum, G. (1994) Asteroid Cratering. 30th COSPAR Meeting, Hamburg, 11-21 July 1994.

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Abstract

The recent results from the Galileo Mission of the flybys of Gaspra and Ida show cratered objects. From these data, production size-frequency distributions for the impact record can be determined and compared with the record of the terrestrial planets and the earth's moon. It becomes evident that there exist striking similarities between the size-frequency distribution characteristics on the asteroids and on the inner solar system planets. This gives much support to the view that one and the same family of objects is responsible for cratering the inner solar system bodies and that these impactors are largely derived from the asteroid belt. Impact probabilities by asteroidal bodies can be assessed for the earth and will be discussed as a function of size and time. The current hazard e.g. for projectiles capable of forming 1-km craters on the earth (if the atmosphere were absent) is one crater every 6000 years for the whole surface of the earth.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1994,
Title:Asteroid Cratering
Authors:
AuthorsInstitution or Email of Authors
Neukum, G.UNSPECIFIED
Date:1994
Status:Published
Event Title:30th COSPAR Meeting, Hamburg, 11-21 July 1994
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Institut für Planetenerkundung
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 09:46

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