TY - JOUR
T1 - Impact-induced seismic activity on asteroid 433 Eros
T2 - A surface modification process
AU - Richardson, James E.
AU - Melosh, H. Jay
AU - Greenberg, Richard
PY - 2004/11/26
Y1 - 2004/11/26
N2 - High-resolution images of the surface of asteroid 433 Eros revealed evidence of downslope movement of a loose regolith layer, as well as the degradation and erasure of small impact craters (less than ∼100 meters in diameter). One hypothesis to explain these observations is seismic reverberation after impact events. We used a combination of seismic and geomorphic modeling to analyze the response of regolith-covered topography, particularly craters, to impact-induced seismic shaking. Applying these results to a stochastic cratering model for the surface of Eros produced good agreement with the observed size-frequency distribution of craters, including the paucity of small craters.
AB - High-resolution images of the surface of asteroid 433 Eros revealed evidence of downslope movement of a loose regolith layer, as well as the degradation and erasure of small impact craters (less than ∼100 meters in diameter). One hypothesis to explain these observations is seismic reverberation after impact events. We used a combination of seismic and geomorphic modeling to analyze the response of regolith-covered topography, particularly craters, to impact-induced seismic shaking. Applying these results to a stochastic cratering model for the surface of Eros produced good agreement with the observed size-frequency distribution of craters, including the paucity of small craters.
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U2 - 10.1126/science.1104731
DO - 10.1126/science.1104731
M3 - Article
C2 - 15567856
AN - SCOPUS:9444296448
SN - 0036-8075
VL - 306
SP - 1526
EP - 1529
JO - Science
JF - Science
IS - 5701
ER -