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Space weathering of itokawa particles: implications for regolith evolution
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Keller, Lindsay P. Berger, Eve L. |
| Copyright Year | 2015 |
| Description | Space weathering processes such as solar wind irradiation and micrometeorite impacts are known to alter the 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. Here, we use the effects of solar wind irradiation and the accumulation of solar flare tracks recorded in Itokawa grains to constrain the rates of space weathering and yield information about regolith dynamics on these timescales. |
| File Size | 1001145 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150002909 |
| Archival Resource Key | ark:/13960/t50g8p27k |
| Language | English |
| Publisher Date | 2015-03-16 |
| Access Restriction | Open |
| Subject Keyword | Lunar And Planetary Science And Exploration Meteorite Collisions Solar Flares Wind Effects Space Weathering Irradiation Regolith Solar Wind Rangefinding Hypervelocity Impact Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
