A collision in 2009 as the origin of the debris trail of asteroid P/2010 A2

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Fältnamn	Indikatorer	Metadata
000		03052naa a2200529 4500
001		oai:DiVA.org:uu-133854
003		SwePub
008		101116s2010 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1338542 URI
024	7	a https://doi.org/10.1038/nature094532 DOI
040		a (SwePub)uu
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Snodgrass, Colin4 aut
245	1 0	a A collision in 2009 as the origin of the debris trail of asteroid P/2010 A2
264		c 2010-10-13
264	1	b Springer Science and Business Media LLC,c 2010
338		a print2 rdacarrier
520		a The peculiar object P/2010 A2 was discovered(1) in January 2010 and given a cometary designation because of the presence of a trail of material, although there was no central condensation or coma. The appearance of this object, in an asteroidal orbit (small eccentricity and inclination) in the inner main asteroid belt attracted attention as a potential new member of the recently recognized(2) class of main-belt comets. If confirmed, this new object would expand the range in heliocentric distance over which main-belt comets are found. Here we report observations of P/2010 A2 by the Rosetta spacecraft. We conclude that the trail arose from a single event, rather than a period of cometary activity, in agreement with independent results(3). The trail is made up of relatively large particles of millimetre to centimetre size that remain close to the parent asteroid. The shape of the trail can be explained by an initial impact ejecting large clumps of debris that disintegrated and dispersed almost immediately. We determine that this was an asteroid collision that occurred around 10 February 2009.
650	7	a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe
650	7	a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng
653		a Physics
653		a Fysik
700	1	a Tubiana, Cecilia4 aut
700	1	a Vincent, Jean-Baptiste4 aut
700	1	a Sierks, Holger4 aut
700	1	a Hviid, Stubbe4 aut
700	1	a Moissl, Richard4 aut
700	1	a Boehnhardt, Hermann4 aut
700	1	a Barbieri, Cesare4 aut
700	1	a Koschny, Detlef4 aut
700	1	a Lamy, Philippe4 aut
700	1	a Rickman, Hansu Uppsala universitet,Teoretisk astrofysik4 aut0 (Swepub:uu)hansrick
700	1	a Rodrigo, Rafael4 aut
700	1	a Carry, Benoit4 aut
700	1	a Lowry, Stephen C.4 aut
700	1	a Laird, Ryan J. M.4 aut
700	1	a Weissman, Paul R.4 aut
700	1	a Fitzsimmons, Alan4 aut
700	1	a Marchi, Simone4 aut
710	2	a Uppsala universitetb Teoretisk astrofysik4 org
773	0	t Natured : Springer Science and Business Media LLCg 467:7317, s. 814-816q 467:7317<814-816x 0028-0836x 1476-4687
856	4	u http://arxiv.org/pdf/1010.2883
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-133854
856	4 8	u https://doi.org/10.1038/nature09453

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