کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1774232 | 1021159 | 2010 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
First disk-resolved spectroscopy of (4) Vesta
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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
![عکس صفحه اول مقاله: First disk-resolved spectroscopy of (4) Vesta First disk-resolved spectroscopy of (4) Vesta](/preview/png/1774232.png)
چکیده انگلیسی
We observe spectral variations across Vesta' surface that can be interpreted as variations of either the pyroxene composition, or the effect of surface aging. We compare Vesta's 2 μm absorption band to that of howardite-eucrite-diogenite (HED) meteorites that are thought to originate from Vesta, and establish particular links between specific regions and HED subclasses. The overall composition is found to be mostly compatible with howardite meteorites, although a small area around 180°E longitude could be attributed to a diogenite-rich spot. We finally focus our spectral analysis on the characteristics of Vesta's bright and dark regions as seen from Hubble Space Telescope's visible and Keck-II's near-infrared images.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 205, Issue 2, February 2010, Pages 473-482
Journal: Icarus - Volume 205, Issue 2, February 2010, Pages 473-482
نویسندگان
Benoît Carry, Pierre Vernazza, Christophe Dumas, Marcello Fulchignoni,