芶盛等： A global catalogue of Ceres impact craters >= 1 km and preliminary analysis

作者:Gou, S (Gou, Sheng)[ 1,2 ] ; Yue, ZY (Yue, Zongyu)[ 1 ] ; Di, KC (Di, Kaichang)[ 1,2 ] ; Liu, ZQ (Liu, Zhaoqin)[ 1 ]

ICARUS

卷: 302  页: 296-307

DOI: 10.1016/j.icarus.2017.11.028

出版年: MAR 1 2018

摘要

The orbital data products of Ceres, including global LAMO image mosaic and global HAMO DTM with a resolution of 35 m/pixel and 135 m/pixel respectively, are utilized in this research to create a global catalogue of impact craters with diameter >= 1 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 1 km and the crater numbers have been updated when compared with the crater catalogue (D >= 20 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 0.11 +/- 0.04, 0.05 +/- 0.04 and 0.14 +/- 0.02 respectively. (4) The d/D ratios for non-polygonal complex crater and polygonal complex crater are 0.08 +/- 0.04 and 0.09 +/- 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. (C) 2017 Elsevier Inc. All rights reserved.

通讯作者地址: Liu, ZQ (通讯作者)

Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing, Peoples R China.

地址:

[ 1 ] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing, Peoples R China

[ 2 ] Chinese Acad Sci, Macau Univ Sci & Technol, Partner Lab Key Lab Lunar & Deep Space Ex, Lunar & Planetary Sci Lab, Macau, Peoples R China