期刊
ICARUS
卷 247, 期 -, 页码 77-80出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.icarus.2014.10.009
关键词
Asteroid ltokawa; Asteroids, surfaces; Geological processes; Data reduction techniques; Asteroids
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Canadian Space Agency
The analysis of size-frequency distributions is common for studying planetary bodies with applications for craters and blocks. However, the common method of using a linear regression on cumulative block distributions is subject to systematic errors that can lead to an underestimation of uncertainties and/or a biasing of the slope. The power-law fitting procedure proposed by Clauset et al. is applied for the first time to a block or crater dataset: the global block survey of Asteroid 25143 Itokawa. Along with new results, a discussion of the importance on the preparation and presentation of block distribution statistics is also given in the context of asteroid block populations. Finally, different block sizing methods are evaluated and demonstrate the advantages of a mass-driven approach rather than a size-driven approach for a power-law fitting. Crown Copyright (C) 2014 Published by Elsevier Inc. All rights reserved.
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