Collisional family

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

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 moons.


  1. ^ Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families" (PDF). Asteroids IV: 297–321. arXiv:1502.01628Freely accessible. doi:10.2458/azu_uapress_9780816532131-ch016. Retrieved 23 June 2017. 
  2. ^ Brown, Michael E.; Barkume, Kristina M.; Ragozzine, Darin; Schaller, Emily L. (2007). "A collisional family of icy objects in the Kuiper belt". Nature. 446 (7133): 294–296. Bibcode:2007Natur.446..294B. doi:10.1038/nature05619. PMID 17361177. 
  3. ^ Chiang, E.~I. (July 2002). "A Collisional Family in the Classical Kuiper Belt". The Astrophysical Journal. 573 (1): L65–L68. arXiv:astro-ph/0205275Freely accessible. Bibcode:2002ApJ...573L..65C. doi:10.1086/342089. 
  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:1710.07610Freely accessible. Bibcode:2018MNRAS.474..838D. doi:10.1093/mnras/stx2765. 
  5. ^ Taylor, G. Jeffrey (31 December 1998). "Origin of the Earth and Moon". Planetary Science Research Discoveries. Retrieved 7 April 2010.