Collisional family

Diagram showing the similarities between the satellites of each of the outer groups of Jovian moons

In astronomy, a collisional family is a group of objects that are thought to have a common origin in an impact (collision). They have similar compositions and most share similar orbital elements.

Known or suspected collisional families include numerous asteroid families,[1][2][3][4] most of the irregular moons of the outer planets, the Earth and the Moon,[5] and the dwarf planets Pluto, Eris, and Haumea and their respective moons.

## See also

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* Satellite collision
* Origin of the Moon

## References

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1. ^ Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321\. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131. S2CID 119280014.
2. ^ Brown, Michael E.; Barkume, Kristina M.; Ragozzine, Darin; Schaller, Emily L. (2007). "A collisional family of icy objects in the Kuiper belt" (PDF). Nature. 446 (7133): 294–296\. Bibcode:2007Natur.446..294B. doi:10.1038/nature05619. PMID 17361177. S2CID 4430027.
3. ^ Chiang, E.~I. (July 2002). "A Collisional Family in the Classical Kuiper Belt". The Astrophysical Journal. 573 (1): L65 – L68. arXiv:astro-ph/0205275. Bibcode:2002ApJ...573L..65C. doi:10.1086/342089. S2CID 18671789.
4. ^ de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (11 February 2018). "Dynamically correlated minor bodies in the outer Solar system". Monthly Notices of the Royal Astronomical Society. 474 (1): 838–846\. arXiv:1710.07610. Bibcode:2018MNRAS.474..838D. doi:10.1093/mnras/stx2765. S2CID 73588205.
5. ^ Taylor, G. Jeffrey (31 December 1998). "Origin of the Earth and Moon". Planetary Science Research Discoveries. Retrieved 7 April 2010.

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