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Volumn 339, Issue 6117, 2013, Pages 292-296

Evidence for water ice near mercury's north pole from MESSENGER neutron spectrometer measurements

Author keywords

[No Author keywords available]

Indexed keywords

HYDROGEN; ICE;

EID: 84872486546     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1229953     Document Type: Article
Times cited : (189)

References (39)
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    • note
    • There is observational and thermal modeling evidence that a limited fraction of the area of permanent shadow and radar-bright regions contain surficial water ice (23, 30). The neutron data, however, do not have the spatial resolution to distinguish regions of surface ice from the larger areas of shallowly buried ice. Furthermore, multiwavelength radar studies (2) suggest that polar deposits in the three largest north polar craters [Chesterton, Tolkien, and Tryggvadóttir (2)] that make a large contribution to the overall neutron signal are, on average, buried beneath a thin cover of dry soil or other comparatively ice-poor material.
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    • note
    • The surface modification models do not account for thermal effects (23) that can operate on time scales much shorter than impact gardening processes (35). Thus, the emplacement times implied by the neutron data represent an upper limit.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.