کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8137359 | 1523545 | 2015 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A radar survey of M- and X-class asteroids. III. Insights into their composition, hydration state, & structure
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A radar survey of M- and X-class asteroids. III. Insights into their composition, hydration state, & structure A radar survey of M- and X-class asteroids. III. Insights into their composition, hydration state, & structure](/preview/png/8137359.png)
چکیده انگلیسی
Eleven members of our sample show bifurcated radar echoes at some rotation phases; eight of these are high radar albedo targets. One interpretation of a bifurcated echo is a contact binary, like 216 Kleopatra, and several of our sample are contact binary candidates. However, evidence for other targets indicates they are not contact binaries. Instead, we hypothesize that these asteroids may have large-scale variations in surface bulk density, i.e. isolated patches of metal-rich and silicate-rich regions at the near-surface, possibly the result of collisions between metal and silicate-rich asteroids.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 245, 1 January 2015, Pages 38-55
Journal: Icarus - Volume 245, 1 January 2015, Pages 38-55
نویسندگان
Michael K. Shepard, Patrick A. Taylor, Michael C. Nolan, Ellen S. Howell, Alessondra Springmann, Jon D. Giorgini, Brian D. Warner, Alan W. Harris, Robert Stephens, William J. Merline, Andrew Rivkin, Lance A.M. Benner, Dan Coley, Beth Ellen Clark,