| DOI: | 10.1002/2016GL070240
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| 论文题名: | Ceres: Sulfur deposits and graphitized carbon |
| 作者: | Hendrix A.R.; Vilas F.; Li J.-Y.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8682
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| EISSN: | 1944-8413
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| 出版年: | 2016
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| 卷: | 43, 期:17 | | 起始页码: | 8920
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| 结束页码: | 8927
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| 语种: | 英语
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| 英文关键词: | Ceres
; dwarf planet
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| Scopus关键词: | Charged particles
; Graphitization
; Sulfur dioxide
; Carbonaceous surface
; Ceres
; Dwarf planets
; Hubble space telescopes
; Laboratory measurements
; Latitudinal gradients
; Particle bombardment
; Spectral differences
; Sulfur
; absorption
; asteroid
; carbon
; laboratory method
; latitudinal gradient
; space technology
; sulfur
; ultraviolet radiation
; visible spectrum
; Ceres
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| 英文摘要: | We report new results from observations of the dwarf planet Ceres using the Hubble Space Telescope in the spectral range 1160–5700 Å. Comparisons between Ceres' UV-visible spectra and laboratory measurements indicate that both sulfur species and graphitized carbon are important on Ceres' surface. We find a latitudinal gradient in UV absorption, with northern latitudes being more UV absorbing than southern latitudes, a trend that can be explained by increasing abundances of sulfur and SO2 toward northern latitudes. The presence of graphitized carbon is consistent with the surface of this airless body being carbonized in response to processes such as charged particle bombardment. The presence of volatile sulfur species is consistent with the idea that Ceres exhibits geothermal activity. Spectral differences with previous UV observations are likely due to the changing sulfurous and carbonaceous surface of Ceres. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987653517&doi=10.1002%2f2016GL070240&partnerID=40&md5=aa268916e08b4965522540bea6ffca45
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9645
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Planetary Science Institute, Tucson, AZ, United States
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| Recommended Citation: | |
Hendrix A.R.,Vilas F.,Li J.-Y.. Ceres: Sulfur deposits and graphitized carbon[J]. Geophysical Research Letters,2016-01-01,43(17).
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