کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8134564 | 1523489 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A global catalogue of Ceres impact cratersâ¯â¥â¯1â¯km and preliminary analysis
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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: A global catalogue of Ceres impact cratersâ¯â¥â¯1â¯km and preliminary analysis A global catalogue of Ceres impact cratersâ¯â¥â¯1â¯km and preliminary analysis](/preview/png/8134564.png)
چکیده انگلیسی
The orbital data products of Ceres, including global LAMO image mosaic and global HAMO DTM with a resolution of 35â¯m/pixel and 135â¯m/pixel respectively, are utilized in this research to create a global catalogue of impact craters with diameterâ¯â¥â¯1â¯km, and their morphometric parameters are calculated. Statistics shows: (1) There are 29,219 craters in the catalogue, and the craters have a various morphologies, e.g., polygonal crater, floor fractured crater, complex crater with central peak, etc.; (2) The identifiable smallest crater size is extended to 1â¯km and the crater numbers have been updated when compared with the crater catalogue (Dâ¯â¥â¯20â¯km) released by the Dawn Science Team; (3) The d/D ratios for fresh simple craters, obviously degraded simple crater and polygonal simple crater are 0.11â¯Â±â¯0.04, 0.05â¯Â±â¯0.04 and 0.14â¯Â±â¯0.02 respectively. (4) The d/D ratios for non-polygonal complex crater and polygonal complex crater are 0.08â¯Â±â¯0.04 and 0.09â¯Â±â¯0.03. The global crater catalogue created in this work can be further applied to many other scientific researches, such as comparing d/D with other bodies, inferring subsurface properties, determining surface age, and estimating average erosion rate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 302, 1 March 2018, Pages 296-307
Journal: Icarus - Volume 302, 1 March 2018, Pages 296-307
نویسندگان
Gou Sheng, Yue Zongyu, Di Kaichang, Liu Zhaoqin,