LRO-LAMP Observations of the LCROSS Impact Plume

被引：142

作者：

Gladstone, G. Randall ^{[1
]}

Hurley, Dana M. ^{[2
]}

Retherford, Kurt D. ^{[1
]}

Feldman, Paul D. ^{[3
]}

Pryor, Wayne R. ^{[4
]}

Chaufray, Jean-Yves ^{[1
]}

Versteeg, Maarten ^{[1
]}

Greathouse, Thomas K. ^{[1
]}

Steffl, Andrew J. ^{[5
]}

Throop, Henry ^{[5
]}

Parker, Joel Wm. ^{[5
]}

Kaufmann, David E. ^{[5
]}

Egan, Anthony F. ^{[5
]}

Davis, Michael W. ^{[1
]}

Slater, David C. ^{[1
]}

Mukherjee, Joey ^{[1
]}

Miles, Paul F. ^{[1
]}

Hendrix, Amanda R. ^{[6
]}

Colaprete, Anthony ^{[7
]}

Stern, S. Alan ^{[5
]}

机构：

[1] SW Res Inst, San Antonio, TX 78238 USA

[2] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA

[3] Johns Hopkins Univ, Baltimore, MD 21218 USA

[4] Cent Arizona Coll, Coolidge, AZ 85228 USA

[5] SW Res Inst, Boulder, CO 80302 USA

[6] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[7] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

来源：

SCIENCE | 2010年 / 330卷 / 6003期

关键词：

MOLECULAR-HYDROGEN; BAND SYSTEM; LUNAR; MISSION; TABLE;

D O I：

10.1126/science.1186474

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

On 9 October 2009, the Lunar Crater Observation and Sensing Satellite (LCROSS) sent a kinetic impactor to strike Cabeus crater, on a mission to search for water ice and other volatiles expected to be trapped in lunar polar soils. The Lyman Alpha Mapping Project (LAMP) ultraviolet spectrograph onboard the Lunar Reconnaissance Orbiter (LRO) observed the plume generated by the LCROSS impact as far-ultraviolet emissions from the fluorescence of sunlight by molecular hydrogen and carbon monoxide, plus resonantly scattered sunlight from atomic mercury, with contributions from calcium and magnesium. The observed light curve is well simulated by the expansion of a vapor cloud at a temperature of similar to 1000 kelvin, containing similar to 570 kilograms (kg) of carbon monoxide, similar to 140 kg of molecular hydrogen, similar to 160 kg of calcium, similar to 120 kg of mercury, and similar to 40 kg of magnesium.

引用

页码：472 / 476

页数：5

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