| タイトル | Olivine Composition of the Mars Trojan 5261 Eureka: Spitzer IRS Data |
| 本文（外部サイト） | http://hdl.handle.net/2060/20110022525 |
| 著者（英） | Lim, L. F.; Trilling, D.; Rivkin, A. S.; Burt, B. J.; Mueller, M.; Emery, J. P. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2011-10-02 |
| 言語 | eng |
| 内容記述 | The largest Mars trojan, 5261 Eureka, is one of two prototype "Sa" asteroids in the Bus-Demeo taxonomy. Analysis of its visible/near-IR spectrum led to the conclusion that it might represent either an angritic analog or an olivine-rich composition such as an R chondrite. Spitzer IRS data (5-30 micrometers) have enabled us to resolve this ambiguity. The thermal-IR spectrum exhibits strong olivine reststrahlen features consistent with a composition of approximately equals Fo60-70. Laboratory spectra of R chondrites, brachinites, and chassignites are dominated by similar features. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| レポートNO | GSFC.CPR.5234.2011 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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