کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1775630 | 1021201 | 2008 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Near-Earth asteroid surface roughness depends on compositional class
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Radar observations of 214 near-Earth asteroids (NEAs) reveal a very strong correlation of circular polarization ratio with visible–infrared taxonomic class, establishing distinct differences in the centimeter-to-several-decimeter structural complexity of objects in different spectral classes. The correlation may be due to the intrinsic mechanical properties of different mineralogical assemblages but also may reflect very different formation ages and collisional histories. The highest ratios are measured for groups associated with achondritic igneous rocky meteorites: the E class, whose parent body may be 3103 Eger, and the V class, derived from the mainbelt asteroid (and Dawn mission target) 4 Vesta.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 198, Issue 2, December 2008, Pages 294–304
Journal: Icarus - Volume 198, Issue 2, December 2008, Pages 294–304
نویسندگان
Lance A.M. Benner, Steven J. Ostro, Christopher Magri, Michael C. Nolan, Ellen S. Howell, Jon D. Giorgini, Raymond F. Jurgens, Jean-Luc Margot, Patrick A. Taylor, Michael W. Busch, Michael K. Shepard,