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Surface exposure ages of space-weathered grains from asteroid 25143 itokawa (Document No: 20150019434)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Keller, L. P. Berger, E. L. Christoffersen, R. |
| Copyright Year | 2015 |
| Description | Space weathering processes such as solar wind ion irradiation and micrometeorite impacts are widely known to alter the properties of regolith materials exposed on airless bodies. The rates of space weathering processes however, are poorly constrained for asteroid regoliths, with recent estimates ranging over many orders of magnitude. The return of surface samples by JAXA's Hayabusa mission to asteroid 25143 Itokawa, and their laboratory analysis provides "ground truth" to anchor the timescales for space weathering processes on airless bodies. |
| File Size | 68909 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150019434 |
| Archival Resource Key | ark:/13960/t9n34vk15 |
| Language | English |
| Publisher Date | 2015-11-02 |
| Access Restriction | Open |
| Subject Keyword | Lunar And Planetary Science And Exploration Olivine Solar Flares Space Weathering Regolith Sulfides Nanocrystals Ion Irradiation Iron Compounds Asteroids Morphology Sample Return Missions Sampling Surface Layers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
