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NOTE: The near-Earth asteroid size-frequency distribution; a snapshot of the Lunar impactor size-frequency size distribution

Werner, S.C. and Harris, A.W. and Neukum, G. and Ivanov, B. (2002) NOTE: The near-Earth asteroid size-frequency distribution; a snapshot of the Lunar impactor size-frequency size distribution. Icarus, 156 (1), pp. 287-290.

Full text not available from this repository.

Abstract

It is shown that the size-frequency distribution (SFD) of a time-averaged projectile population derived from the lunar crater SFD of Neukum and Ivanov (in Hazards Due to Comets and Asteroids (T. Gehrels, Ed.), 1994, pp. 359-416, Univ. of Arizona Press, Tucson) provides a convincing fit to the SFD of the current near-Earth asteroid (NEA) population, as deduced from the results of asteroid search programs. Our results suggest that the shape of the SFD of the impactor flux has remained in a steady state since the late heavy bombardment, so that the current NEA population can be viewed as a snapshot of the flux of impactors on the Moon. The number of bodies in the projectile population with diameters of 1 km or more is 700+/-130, which is in good agreement with recent estimates of the total number of NEAs in this size range. Our results imply that the contribution to the projectile flux from comets is small for diameters below 10 km.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2003,
Title:NOTE: The near-Earth asteroid size-frequency distribution; a snapshot of the Lunar impactor size-frequency size distribution
Authors:
AuthorsInstitution or Email of Authors
Werner, S.C.UNSPECIFIED
Harris, A.W.UNSPECIFIED
Neukum, G.UNSPECIFIED
Ivanov, B.Institute for Dynamics of Geospheres, Moscow, Russia
Date:2002
Journal or Publication Title:Icarus
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:156
Page Range:pp. 287-290
Status:Published
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institut für Weltraumsensorik und Planetenerkundung
Deposited By: Susanne Pieth
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 19:27

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