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题名: INFRARED SPECTRA OF AMMONIA-WATER ICES
作者: Zheng, Weijun1, 2, 3;  Jewitt, David1;  Kaiser, Ralf I.2
关键词: infrared: general ;  methods: laboratory ;  planets and satellites: general
刊名: ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
发表日期: 2009-03-01
DOI: 10.1088/0067-0049/181/1/53
卷: 181, 期:1, 页:53-61
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
英文摘要: We conducted a systematic study of the near-IR and mid-IR spectra of ammonia-water ices at various NH(3)/H(2)O ratios. The differences between the spectra of amorphous and crystalline ammonia-water ices were also investigated. The 2.0 mu m ammonia band central wavelength is a function of the ammonia/water ratio. It shifts from 2.006 +/- 0.003 mu m (4985 +/- 5 cm(-1)) to 1.993 +/- 0.003 mu m (5018 +/- 5 cm(-1)) as the percentage of ammonia decreases from 100% to 1%. The 2.2 mu m ammonia band center shifts from 2.229 +/- 0.003 mu m (4486 +/- 5 cm(-1)) to 2.208 +/- 0.003 mu m (4528 +/- 5 cm(-1)) over the same range. Temperature-dependent shifts of those bands are below the uncertainty of the measurement, and therefore are not detectable. These results are important for comparison with astronomical observations as well as for estimating the concentration of ammonia in outer solar system ices.
关键词[WOS]: CRYSTALLINE WATER ;  TRAILING HEMISPHERES ;  ICY SATELLITES ;  THIN-FILMS ;  SPECTROSCOPY ;  ATMOSPHERE ;  ENCELADUS ;  SPACE ;  BAND ;  INTERSTELLAR
语种: 英语
WOS记录号: WOS:000263912400002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141410
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
2.Univ Hawaii, Dept Chem, Honolulu, HI 96822 USA
3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China

Recommended Citation:
Zheng, Weijun,Jewitt, David,Kaiser, Ralf I.. INFRARED SPECTRA OF AMMONIA-WATER ICES[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2009,181(1):53-61.
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