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Jupiter-family comets

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Journal Article
Journal: Elements
Published: 01 April 2018
Elements (2018) 14 (2): 107-112.
... Southeast Asia are thought to have been created this way ( Shuvalov et al. 2016 ). Some Jupiter-family comets evolve away from Jupiter's orbit by close encounters with Earth or Venus, or by being perturbed by resonant perturbations from Jupiter and Saturn. Such old Jupiter-family comets spend much...
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Journal Article
Journal: Elements
Published: 01 April 2018
Elements (2018) 14 (2): 101-106.
... in organic molecular compositions suggest that 81P/Wild 2 was not equilibrated and contains organic materials not found in meteorites or their asteroid parent bodies. The Rosetta mission was the first mission to rendezvous with Jupiter-family comet 67P/Churyumov–Gerasimenko. Not only did it make remote...
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Journal Article
Journal: Elements
Published: 01 April 2018
Elements (2018) 14 (2): 83-86.
... to be incorrect for comet 81P/Wild 2. The question now is how representative 81P/Wild 2 is of Jupiter-family comets (a group of short-period comets whose orbits are controlled by Jupiter's gravity). That can only be answered by Earth-based laboratory analyses of samples returned from other comet nuclei and comas...
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Journal Article
Journal: Elements
Published: 01 April 2018
Elements (2018) 14 (2): 87-93.
... of the original population exceed 30 Earth masses ( Gomes et al. 2005 ). With the exception of 1P/Halley, the investigated bodies are Jupiter-family comets that have ∼6 year orbital periods. They cannot survive long in these small orbits due to solar heating and gravitational perturbation by Jupiter. Previously...
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Series: European Mineralogical Union Notes in Mineralogy
Published: 01 January 2015
DOI: 10.1180/EMU-notes.15.3
EISBN: 9780903056564
... materials as pristine as those of 81P/Wild 2. It seems obvious that evolved comets have lost significant amounts of volatiles; when forming part of the NEO, Main Belt or Jupiter-family Comet (JFC) populations, they could have suffered significant collisional processing. If this evolutionary sequence...
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Journal Article
Published: 01 January 2008
Reviews in Mineralogy and Geochemistry (2008) 68 (1): 247-272.
...Scott A. Sandford; Scott Messenger; Michael DiSanti; Lindsay Keller; Kathrin Altwegg Abstract Comets are thought to have accreted in the cold, outer portions of the protosolar nebula when our Solar System was forming, and they clearly contain a higher proportion of volatiles than materials formed...
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Image
Orbits of some celestial bodies. ( A ) The orbit of the long-period <b>comet</b> H...
in > Elements
Published: 01 February 2011
F igure 2 Orbits of some celestial bodies. ( A ) The orbit of the long-period comet Hyakutake, which extends to the Oort cloud. ( B ) Orbits of the Wild 2 Jupiter family comet (blue) and the Tagish Lake meteorite (green), as well as the preferred orbit for the Orgueil meteorite (adopting
Journal Article
Journal: Elements
Published: 01 February 2011
Elements (2011) 7 (1): 29-34.
...F igure 2 Orbits of some celestial bodies. ( A ) The orbit of the long-period comet Hyakutake, which extends to the Oort cloud. ( B ) Orbits of the Wild 2 Jupiter family comet (blue) and the Tagish Lake meteorite (green), as well as the preferred orbit for the Orgueil meteorite (adopting...
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Journal Article
Journal: Elements
Published: 01 April 2018
Elements (2018) 14 (2): 95-100.
... ). Not only that, but the result showed that variation in D/H of Jupiter-family comets was much greater than previously suspected, meaning that the D/H ratio of a comet can no longer be used as a discriminator between Jupiter-family comets and long-period comets. The (surface) temperature of a comet...
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Journal Article
Published: 01 November 2008
American Mineralogist (2008) 93 (11-12): 1933-1936.
... ) A collisional family of icy objects in the Kuiper belt. Nature , 446 , 294 –296. Brownlee, D. and others ( 2006 ) Comet 81P/Wild 2 under a microscope. Science , 314 , 1711 –1716. Brownlee, D.E., Joswiak, D.J., Matrajt, G., Bradley, J.P., and Ebel, D.S. ( 2008 ) Ultra-refractory attogram inclusions...
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Journal Article
Published: 01 January 2014
Reviews in Mineralogy and Geochemistry (2014) 78 (1): 399-446.
... have recently visited Jupiter, comets, asteroids, and one spectrometer-carrying spacecraft is on its way to Pluto. Together these systems are providing a wealth of data that will enable a better understanding of the composition of condensed matter bodies in the solar system. Minerals, ices, liquids...
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Series: European Mineralogical Union Notes in Mineralogy
Published: 01 January 2015
DOI: 10.1180/EMU-notes.15.9
EISBN: 9780903056564
... and CM chondrites, in accordance with dynamical models indicating that 85% of the mass influx of small particles to Earth comes from Jupiter Family Comets ( Nesvorny et al., 2010 ). Asteroidal micrometeorites with affinity to ordinary chondrites and differentiated achondrites account for only 2–8...
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Journal Article
Published: 01 September 2017
American Mineralogist (2017) 102 (9): 1881-1893.
... System. The resulting reactions produced a suite of sulfides and nanophase materials not visible at the microprobe scale, but which we have now analyzed by TEM for comparison with interplanetary dust samples and comet Wild 2 samples returned by the Stardust mission. We find the unexpected result...
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Journal Article
Published: 01 September 2007
Journal of the Geological Society (2007) 164 (5): 923-936.
... and accuracy of radiometric dates for large igneous provinces (LIPs), for which there is now a consensus on the peak eruption times over the last 250 Ma. In parallel there has been a more gradual improvement in the radiometric dates for craters formed by hypervelocity impacts (HVIs) of asteroids and comets...
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Journal Article
Journal: Geology
Published: 01 September 2010
Geology (2010) 38 (9): 835-838.
... of asteroidal bodies is the J5:2 band (5 asteroid orbits per 2 orbits of Jupiter).The J5:2 resonance band is thought to have been responsible for the rapid delivery of many meteorites and possibly larger bodies during the Ordovician Period ( Nesvorny et al., 2002 ). However, no large asteroid family has been...
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Journal Article
Journal: Elements
Published: 01 January 2005
Elements (2005) 1 (1): 39-43.
... , Horz F , Newburn RL , Zolensky M , Duxbury TC , Sandford S , Sekanina Z , Tsou P , Hanner MS , Clark BC , Green SF , Kissel J ( 2004 ) Surface of young Jupiter family comet P81/Wild2: View from the Stardust spacecraft . Science 304 : 1764 – 1769...
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Journal Article
Published: 01 January 2013
Reviews in Mineralogy and Geochemistry (2013) 75 (1): 149-181.
... exceeds ~1.4 M o , it will explode as a type Ia supernova. The volatile species emitted by comets are dominated by water, followed by CO, CO 2 , NH 3 , and simple organic molecules ( Bockelée-Morvan et al. 2004 ; Mumma and Charnley 2012 ). To date, there have been no unambiguous remote detections...
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Journal Article
Published: 01 January 2008
Reviews in Mineralogy and Geochemistry (2008) 68 (1): 219-246.
... been found in the stratospheres of the other giant planets and Titan. The external source of oxygen might have two origins: a local contribution from satellites and/or rings; or an interplanetary origin, from comets, including comet Shoemaker-Levy 9 in the case of Jupiter ( Lellouch et al. 2002...
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Journal Article
Journal: Elements
Published: 01 June 2016
Elements (2016) 12 (3): 197-202.
... material from the Jupiter family comet 81P/Wild 2 – A coordinated TEM/STEM EDS/STXM study . Geochimica et Cosmochimica Acta 122 : 1 - 16 Stroud RM Chisholm MF Heck PR Alexander CMO'D Nittler LR ( 2011 ) Constraining the origin of meteoritic nanodiamond residues...
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Journal Article
Journal: Elements
Published: 01 June 2016
Elements (2016) 12 (3): 177-183.
..., with the inner regions being dominated by olivines, a supposition compatible with an origin for MMs and CP IDPs in the outer regions of the asteroid belt, or from Jupiter Family comets ( Nesvorný et al. 2010 ). Isotopic imaging ( F ig . 5A, B ) identified submicron grains with O-isotopic ratios falling far...
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