Binzel RP, Bus SJ, Burbine TH, Sunshine JM
R. P. Binzel, S. J. Bus, T. H. Burbine, Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. J. M. Sunshine, Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, and Science Applications International Corporation, 4501 Daly Drive, Chantilly, VA 22021, USA.
Science. 1996 Aug 16;273(5277):946-8. doi: 10.1126/science.273.5277.946.
Although ordinary chondrite (OC) meteorites dominate observed falls, the identification of near-Earth and main-belt asteroid sources has remained elusive. Telescopic measurements of 35 near-Earth asteroids ( approximately3 kilometers in diameter) revealed six that have visible wavelength spectra similar to laboratory spectra of OC meteorites. Near-Earth asteroids were found to have spectral properties that span the range between the previously separated domains of OC meteorites and the most common (S class) asteroids, suggesting a link. This range of spectral properties could arise through a diversity of mineralogies and regolith particle sizes, as well as through a time-dependent surface weathering process.
尽管普通球粒陨石（OC）在观测到的坠落陨石中占主导地位，但近地小行星和主带小行星源的识别一直难以捉摸。对35颗近地小行星（直径约3公里）的望远镜测量显示，其中有6颗小行星的可见波长光谱与OC陨石的实验室光谱相似。研究发现，近地小行星的光谱特性涵盖了之前OC陨石和最常见的（S类）小行星所划分的不同领域，这表明它们之间存在联系。这种光谱特性范围可能是由于矿物学和风化层颗粒大小的多样性，以及随时间变化的表面风化过程而产生的。
