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Meteor showers from active asteroids and dormant comets in near-Earth space: A review

Ye, Quan-Zhi (2018) Meteor showers from active asteroids and dormant comets in near-Earth space: A review. Planetary and Space Science, 164 . pp. 7-12. ISSN 0032-0633. doi:10.1016/j.pss.2018.04.018.

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Small bodies in the solar system are conventionally classified into asteroids and comets. However, it is recently found that a small number of objects can exhibit properties of both asteroids and comets. Some are more consistent with asteroids despite episodic ejections and are labeled as “active asteroids”, while some might be aging comets with depleting volatiles. Ejecta produced by active asteroids and/or dormant comets are potentially detectable as meteor showers at the Earth if they are in Earth-crossing orbits, allowing us to retrieve information about the historic activities of these objects. Meteor showers from small bodies with low and/or intermittent activities are usually weak, making shower confirmation and parent association challenging. We show that statistical tests are useful for identifying likely parent-shower pairs. Comprehensive analyses of physical and dynamical properties of meteor showers can lead to deepen understanding on the history of their parents. Meteor outbursts can trace to recent episodic ejections from the parents, and “orphan” showers may point to historic disintegration events. The flourish of NEO and meteor surveys during the past decade has produced a number of high-confidence parent-shower associations, most have not been studied in detail. More work is needed to understand the formation and evolution of these parent-shower pairs.

Item Type:Article
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Ye, Quan-Zhi0000-0002-4838-7676
Additional Information:© 2018 Published by Elsevier. Received 21 November 2017, Revised 17 April 2018, Accepted 19 April 2018, Available online 1 May 2018. I thank David Asher and an anonymous reviewer for their comments that help improve this manuscript. This work is supported by the GROWTH project funded by the National Science Foundation under Grant No. 1545949.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Subject Keywords:Active asteroids; Dormant comets; Meteors; Meteor showers; Meteoroid streams; Solar system dynamics
Record Number:CaltechAUTHORS:20180501-112937663
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Official Citation:Quan-Zhi Ye, Meteor showers from active asteroids and dormant comets in near-Earth space: A review, Planetary and Space Science, Volume 164, 2018, Pages 7-12, ISSN 0032-0633, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86156
Deposited By: George Porter
Deposited On:01 May 2018 19:40
Last Modified:15 Nov 2021 20:35

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