气候变化领域集成服务门户(CCPortal): Spitzer spectral observations of the deep impact ejecta

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DOI	10.1126/science.1124694
	Spitzer spectral observations of the deep impact ejecta
	Lisse C.M.; VanCleve J.; Adams A.C.; A'Hearn M.F.; Fernández Y.R.; Farnham T.L.; Armus L.; Grillmair C.J.; Ingalls J.; Belton M.J.S.; Groussin O.; McFadden L.A.; Meech K.J.; Schultz P.H.; Clark B.C.; Feaga L.M.; Sunshine J.M.
发表日期	2006
ISSN	0036-8075
起始页码	635
结束页码	640
卷号	313 期号:5787
英文摘要	Spitzer Space Telescope imaging spectrometer observations of comet 9P/Tempel 1 during the Deep Impact encounter returned detailed, highly structured, 5- to 35-micrometer spectra of the ejecta. Emission signatures due to amorphous and crystalline silicates, amorphous carbon, carbonates, phyllosilicates, polycyclic aromatic hydrocarbons, water gas and ice, and sulfides were found. Good agreement is seen between the ejecta spectra and the material emitted from comet C/1995 01 (Hale-Bopp) and the circumstellar material around the young stellar object HD100546. The atomic abundance of the observed material is consistent with solar and C1 chondritic abundances, and the dust-to-gas ratio was determined to be greater than or equal to 1.3. The presence of the observed mix of materials requires efficient methods of annealing amorphous silicates and mixing of high- and low-temperature phases over large distances in the early protosolar nebula.
英文关键词	Amorphous materials; Aromatic hydrocarbons; Imaging systems; Silicates; Spectrometers; Emission signatures; Protosolar nebula; Spitzer Space Telescope imaging spectrometer; Stellar objects; Space telescopes; carbon; carbonic acid derivative; ice; polycyclic aromatic hydrocarbon; silicate; sulfide; carbon; carbonate; chondrite; collision; comet; ejecta; emission; ice; imaging method; PAH; phyllosilicate; silicate; spectrometer; sulfide; article; astronomy; gas; high temperature; low temperature; materials; priority journal; spectral sensitivity; spectrometer
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/244551
作者单位	Planetary Exploration Group, Space Department, Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723, United States; Department of Astronomy, University of Maryland, CSS 2341, College Park, MD 20742, United States; Ball Aerospace and Technologies Corporation, 1600 Commerce Street, Boulder, CO 80306, United States; Department of Physics, University of Central Florida, Post Office Box 162385, Orlando, FL 32816-2385, United States; Spitzer Space Science Center, California Institute of Technology, Pasadena, CA 91125, United States; Belton Space Exploration Initiatives, 430 Randolph Way, Tucson, AZ 85716, United States; Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822, United States; Department of Geological Sciences, Brown University, Providence, RI 02912-1846, United States; Space Exploration Systems, Lockheed Martin, Denver, CO 80201, United States
推荐引用方式 GB/T 7714	Lisse C.M.,VanCleve J.,Adams A.C.,et al. Spitzer spectral observations of the deep impact ejecta[J],2006,313(5787).
APA	Lisse C.M..,VanCleve J..,Adams A.C..,A'Hearn M.F..,Fernández Y.R..,...&Sunshine J.M..(2006).Spitzer spectral observations of the deep impact ejecta.Science,313(5787).
MLA	Lisse C.M.,et al."Spitzer spectral observations of the deep impact ejecta".Science 313.5787(2006).