Campo del Cielo modeling and comparison with observations: I. Atmospheric entry of the iron meteoroid

This paper presents an attempt to reconstruct the Campo del Cielo (CdC) impact event, that is, to estimate the preatmospheric mass and velocity of the iron meteoroid and pre‐impact parameters of its fragments allowing formation of funnels and impact craters. The goal of this study is to improve the...

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Bibliographic Details
Published in:Meteoritics & planetary science 2022-08, Vol.57 (8), p.1496-1518
Main Authors: Schmalen, A., Luther, R., Artemieva, N.
Format: Article
Language:English
Subjects:
Ablation
Atmospheric entry
Atmospheric flight
Atmospheric models
Craters
Deceleration
Earth surface
Fragments
Funnels
Iron
Mathematical models
Meteorites
Meteoroids
Meteors & meteorites
Parameters
Velocity
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Summary:This paper presents an attempt to reconstruct the Campo del Cielo (CdC) impact event, that is, to estimate the preatmospheric mass and velocity of the iron meteoroid and pre‐impact parameters of its fragments allowing formation of funnels and impact craters. The goal of this study is to improve the understanding of the effects small‐scale iron meteoroids can have on the Earth's surface. We model the meteoroid's atmospheric flight taking deceleration, ablation, and fragmentation into account, and then compare the results with available observations. We found that a fragment's velocity near the surface should be
ISSN:1086-9379
1945-5100
DOI:10.1111/maps.13832