کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10701363 | 1021128 | 2013 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reconciling main belt asteroid spectral flux density measurements with a self-consistent thermophysical model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
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چکیده انگلیسی
Results of the infrared-to-centimeter comparisons confirm that low thermal inertia (I â¼Â 5-80 J/(K m2 s0.5)) material constitutes the upper â¼1 cm of the four large asteroids studied. For the non-isothermal models considered, spectral emissivities near 1.0 fit the data of all four asteroids with no significant variations indicated throughout the infrared to microwave spectrum. Enhanced measured infrared flux levels (relative to a smooth surface model) of the four asteroids are constrained by a surface model with up to 50% fractional coverage of hemispherical craters, consistent with both the recent Lutetia result and historical measurements of the Moon's thermal flux characteristics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 226, Issue 1, SeptemberâOctober 2013, Pages 1086-1102
Journal: Icarus - Volume 226, Issue 1, SeptemberâOctober 2013, Pages 1086-1102
نویسندگان
Stephen Keihm, Lucas Kamp, Samuel Gulkis, Mark Hofstadter, Seungwon Lee, Michael Janssen, Mathieu Choukroun,