PMO OpenIR  > 近地天体探测和太阳系天体研究团组
Analysis of Q-type Near-Earth Asteroid Spectra with Modified Gaussian Model
Wang Hao; Ma Yuehua; Zhao Haibin; Lu Xiaoping
2016
Source PublicationActa Astronomica Sinica
Volume57Issue:4Pages:437-446
AbstractUsing the Modified Gaussian Model (MGM) method developed by Sunshine et al. to extract mineralogical information from the spectra of eight Q-type near-earth asteroids, we obtain their surface composition of orthopyroxene and clinopy-roxene. We further get a compositional proportion of each asteroid: the abundance of clinopyroxene is about 70% on the suface of asteroids 5143, 7341, 66146, and 162058, and it is about 60% on the surface of asteroids 1862, 4688, and 5660, but only 43% on the surface of asteroid 3753. Then we analyse the reason of apparently low abundance of clinopyroxene on the surface of asteroid 3753. The level of metamorphism experienced by the asteroid increases with the decreasing of the distance from the center. So the asteroid 3753 is highly metamorphosed, and the abundance of clinopyroxene is low.
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16821
Collection近地天体探测和太阳系天体研究团组
Recommended Citation
GB/T 7714
Wang Hao,Ma Yuehua,Zhao Haibin,et al. Analysis of Q-type Near-Earth Asteroid Spectra with Modified Gaussian Model[J]. Acta Astronomica Sinica,2016,57(4):437-446.
APA Wang Hao,Ma Yuehua,Zhao Haibin,&Lu Xiaoping.(2016).Analysis of Q-type Near-Earth Asteroid Spectra with Modified Gaussian Model.Acta Astronomica Sinica,57(4),437-446.
MLA Wang Hao,et al."Analysis of Q-type Near-Earth Asteroid Spectra with Modified Gaussian Model".Acta Astronomica Sinica 57.4(2016):437-446.
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