L5火星特洛伊木马的组成：邻居，而不是similar
Composition of the L5 Mars Trojans: Neighbors, not Siblings
摘要：
火星是唯一已知有Tro jan（共轨）小行星的类地行星，已确认的小行星群至少有4个。这些天体的起源尚不清楚;虽然有几个天体的轨道在太阳系的时间尺度上是稳定的，但里夫金等人（2003年）的工作表明它们的组成表明它们彼此独立的起源。我们已经获得了两个最大的L5火星Tro jans的红外（0.8-2.5微米）光谱，并确认和扩展了Rivkin等人（2003）的结果。我们认为，分化的角闪石陨石是很好的光谱类似物5261尤里卡，最大的火星特洛伊。101429 1998年VF 31的陨石类似物更多样化，包括原始的无球粒陨石和中球粒陨石。
英文摘要：
Mars is the only terrestrial planet known to have Tro jan (co-orbiting) asteroids, with a confirmed population of at least 4 objects. The origin of these objects is not known; while several have orbits that are stable on solar-system timescales, work by Rivkin et al. (2003) showed they have compositions that suggest separate origins from one another. We have obtained infrared (0.8-2.5 micron) spectroscopy of the two largest L5 Mars Tro jans, and confirm and extend the results of Rivkin et al. (2003). We suggest that the differentiated angrite meteorites are good spectral analogs for 5261 Eureka, the largest Mars Trojan. Meteorite analogs for 101429 1998 VF31 are more varied and include primitive achondrites and mesosiderites.
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