气候变化领域集成服务门户(CCPortal): Doubly Ionized Carbon Observed in the Plasma Tail of Comet Kudo-Fujikawa

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DOI	10.1126/science.1092142
	Doubly Ionized Carbon Observed in the Plasma Tail of Comet Kudo-Fujikawa
	Povich M.S.; Raymond J.C.; Jones G.H.; Uzzo M.; Ko Y.-K.; Feldman P.D.; Smith P.L.; Marsden B.G.; Woods T.N.
发表日期	2003
ISSN	0036-8075
起始页码	1949
结束页码	1952
卷号	302 期号:5652
英文摘要	Comet C/2002 X5 (Kudo-Fujikawa) was observed near its perihelion of 0.19 astronomical unit by the Ultraviolet Coronagraph Spectrometer aboard the Solar and Heliospheric Observatory spacecraft. Images of the comet reconstructed from high-resolution spectra reveal a quasi-spherical cloud of neutral hydrogen and a variable tail of C+ and C2+ that disconnects from the comet and subsequently regenerates. The high abundance of C2+ and C+ at least 24% relative to water, cannot be explained by photodissociation of carbon monoxide and is instead attributed to the evaporation and subsequent photoionization of atomic carbon from organic refractory compounds present in the cometary dust grains. This result serves to strengthen the connection between comets and the material from which the Solar System formed.
英文关键词	Carbon; Evaporation; Photodissociation; Photoionization; Spacecraft; Comets; Astronomy; carbon; carbon ion; carbon monoxide; hydrogen; ion; organic compound; unclassified drug; water; carbon; comet; plasma; solar system; article; astronomy; comet; comet Kudo Fujikawa; dissociation; dust; evaporation; grain; image reconstruction; ionization; photodissociation; photoionization; photoreactivity; plasma; priority journal; space flight; spectrometer; ultraviolet coronagraph spectrometer; Carbon; Hydrogen; Ions; Meteoroids; Spectrum Analysis; Water
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245129
作者单位	Harvard-Smithsonian Ctr. Astrophys., 60 Garden Street, Cambridge, MA 02138, United States; Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109, United States; Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218-2686, United States; University of Colorado, Lab. for Atmosph. and Space Physics, 1234 Innovation Drive, Boulder, CO 80303, United States
推荐引用方式 GB/T 7714	Povich M.S.,Raymond J.C.,Jones G.H.,et al. Doubly Ionized Carbon Observed in the Plasma Tail of Comet Kudo-Fujikawa[J],2003,302(5652).
APA	Povich M.S..,Raymond J.C..,Jones G.H..,Uzzo M..,Ko Y.-K..,...&Woods T.N..(2003).Doubly Ionized Carbon Observed in the Plasma Tail of Comet Kudo-Fujikawa.Science,302(5652).
MLA	Povich M.S.,et al."Doubly Ionized Carbon Observed in the Plasma Tail of Comet Kudo-Fujikawa".Science 302.5652(2003).