Expected Fragment Distribution from the First Interstellar Meteor CNEOS 2014-01-08 Article Swipe

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Amory Tillinghast-Raby , Abraham Loeb , Amir Siraj ·

YOU? · · 2022 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2212.00839

In 2014, the fireball of the first interstellar meteor CNEOS 2014-01-08 (IM1) (Siraj & Loeb 2019), was detected off the northern coast of Papua New Guinea. A recently announced ocean expedition will retrieve any extant fragments by towing a magnetic sled across a 10 km x 10 km area of ocean floor approximately 300 km north of Manus Island (Siraj, Loeb, & Gallaudet 2022). We formulate a model that includes both the probabilistic mass distribution of meteor fragments immediately after the fragmentation event, the ablation of the fragments, and the geographic distribution of post-ablation fragments along the ground track trajectory of the bulk fragment cloud. We apply this model to IM1 to provide a heuristic estimate of the impactor's post-ablation fragment mass distribution, constructed through a Monte Carlo simulation. We find between ~8% and ~21% of fragments are expected to survive ablation with a mass $\geq$ .001 g, depending on the impactor's empirical yield strength. We also provide an estimation for the geographic distribution of post-ablation fragments.

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Meteor (satellite) Physics Mass distribution Fragmentation (computing) Astrophysics Extant taxon Geology Geography Meteorology Operating system Galaxy Biology Evolutionary biology Computer science

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2212.00839
PDF: https://arxiv.org/pdf/2212.00839
OA Status: green
Cited By: 1
Related Works: 10
OpenAlex ID: https://openalex.org/W4310743128

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DOI: https://doi.org/10.48550/arxiv.2212.00839

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Title: Expected Fragment Distribution from the First Interstellar Meteor CNEOS 2014-01-08

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Type: preprint

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Language: en

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Publication year: 2022

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Publication date: 2022-12-01

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Authors: Amory Tillinghast-Raby, Abraham Loeb, Amir Siraj

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Landing page: https://arxiv.org/abs/2212.00839

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Concepts: Meteor (satellite), Physics, Mass distribution, Fragmentation (computing), Astrophysics, Extant taxon, Geology, Geography, Meteorology, Operating system, Galaxy, Biology, Evolutionary biology, Computer science

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Cited by: 1

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