Asteroid fragmentation approaches for modeling atmospheric energy deposition

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• 作者：Paul J. Register^a ; ^{paul.j.register@vanderbilt.edu} ; Donovan L. Mathias^b ; ^{donovan.mathias@nasa.gov} ; Lorien F. Wheeler^c ; ^{lorien.wheeler@nasa.gov}
• 关键词：Meteors ; Asteroids ; Near-earth objects ; Asteroid dynamics ; Fragmentation
• 刊名：Icarus
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：284
• 期：Complete
• 页码：157-166
• 全文大小：2767 K
• 卷排序：284

文摘

Fragmentation modeling approaches are compared using Chelyabinsk meteor data. A new model combining discrete and cloud-like fragmentation methods is presented. Combining discrete and cloud-like fragmentation better models observed features. Cloud-like breakup characteristics are needed to represent large airburst flares. Discrete fragmentation methods are needed reproduce multiple flares.