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Snow carrots after the Chelyabinsk event and model implications for highly porous solar system objects

Luther, Robert; Wünnemann, Kai; Artemieva, Natalia +2 more

After the catastrophic disruption of the Chelyabinsk meteoroid, small fragments formed funnels in the snow layer covering the ground. We constrain the pre-impact characteristics of the fragments by simulating their atmospheric descent with the atmospheric entry model. Fragments resulting from catastrophic breakup may lose about 90% of their initia…