2019
DOI: 10.48550/arxiv.1906.05291
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Halo Meteors

Amir Siraj,
Abraham Loeb

Abstract: The stellar halo contains some of the oldest stars in the Milky Way galaxy and in the universe. The detections of 'Oumuamua, CNEOS 2014-01-08, and interstellar dust serve to calibrate the production rate of interstellar objects. We study the feasibility of a search for interstellar meteors with origins in the stellar halo. We find the mean heliocentric impact speed for halo meteors to be ∼ 270 km s −1 , and the standard deviation is ∼ 90 km s −1 , making the population kinematically distinct from all other met… Show more

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