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The composition of meteoroids impacting ldef
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Warren, J. Bradley, J. P. Brownlee, D. E. Bernhard, R. P. Laurance, M. Horz, Friedrich |
| Copyright Year | 1991 |
| Description | So far we have completed an initial scanning electron microscopy (SEM) survey of craters on the exterior of the Long Duration Exposure Facility (LDEF) in the 100 micron to 1mm size range and done some quantitative analysis. In typical craters, the residue appears to be a mixture of glass and FeNi and sulfide beads with an overall chondritic elemental composition. In less than 10 percent of the craters, there is a substantial amount of meteoroid debris that also contains unmelted mineral grains. The relatively high abundance of forsterite and enststite among these irregular grains suggests that a high melting point probably plays a role in surviving impact without melting. |
| File Size | 97209 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920003692 |
| Archival Resource Key | ark:/13960/t50g8k903 |
| Language | English |
| Publisher Date | 1991-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Scanning Electron Microscopy Residues Size Distribution Glass Forsterite Electron Microscopy Melting Points Meteoroids Surveys Sulfides Meteoritic Damage Craters Chemical Composition Debris Beads Long Duration Exposure Facility Quantitative Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
