Diversity of New Martian Crater Clusters Informs Meteoroid Atmospheric Interactions
We investigated 634 crater clusters on Mars detected between 2007 and 2021, which represent more than half of all impacts discovered in this period. Crater clusters form when meteoroids in the 10 kg–10 ton mass range break up in Mars' atmosphere to produce a few to a few hundred fragments that...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
American Geophysical Union
2023
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| Online Access: | http://purl.org/au-research/grants/arc/DP200102073 http://hdl.handle.net/20.500.11937/94749 |
| _version_ | 1848765913194561536 |
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| author | Neidhart, Tanja Sansom, Ellie Miljkovic, Katarina Collins, G.S. Eschenfelder, J. Daubar, I.J. |
| author_facet | Neidhart, Tanja Sansom, Ellie Miljkovic, Katarina Collins, G.S. Eschenfelder, J. Daubar, I.J. |
| author_sort | Neidhart, Tanja |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We investigated 634 crater clusters on Mars detected between 2007 and 2021, which represent more than half of all impacts discovered in this period. Crater clusters form when meteoroids in the 10 kg–10 ton mass range break up in Mars' atmosphere to produce a few to a few hundred fragments that hit the ground. The properties of the clusters can inform our understanding of meteoroid properties and the processes that govern their fragmentation. We mapped individual craters >1 m within each cluster and defined a range of cluster properties based on the spatial and size distributions of the craters. The large data set, with over eight times more cluster observations than previous work, provides a more robust statistical investigation of crater cluster parameters and their correlations. Trends in size, dispersion, and large crater fraction with elevation support weak atmospheric filtering of material. The diversity in the number of individual craters within a cluster, and their size-frequency distributions, may reflect either a diversity in fragmentation style, fragility, or internal particle sizes. |
| first_indexed | 2025-11-14T11:42:48Z |
| format | Journal Article |
| id | curtin-20.500.11937-94749 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:42:48Z |
| publishDate | 2023 |
| publisher | American Geophysical Union |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-947492024-04-17T04:51:43Z Diversity of New Martian Crater Clusters Informs Meteoroid Atmospheric Interactions Neidhart, Tanja Sansom, Ellie Miljkovic, Katarina Collins, G.S. Eschenfelder, J. Daubar, I.J. We investigated 634 crater clusters on Mars detected between 2007 and 2021, which represent more than half of all impacts discovered in this period. Crater clusters form when meteoroids in the 10 kg–10 ton mass range break up in Mars' atmosphere to produce a few to a few hundred fragments that hit the ground. The properties of the clusters can inform our understanding of meteoroid properties and the processes that govern their fragmentation. We mapped individual craters >1 m within each cluster and defined a range of cluster properties based on the spatial and size distributions of the craters. The large data set, with over eight times more cluster observations than previous work, provides a more robust statistical investigation of crater cluster parameters and their correlations. Trends in size, dispersion, and large crater fraction with elevation support weak atmospheric filtering of material. The diversity in the number of individual craters within a cluster, and their size-frequency distributions, may reflect either a diversity in fragmentation style, fragility, or internal particle sizes. 2023 Journal Article http://hdl.handle.net/20.500.11937/94749 10.1029/2022JE007611 http://purl.org/au-research/grants/arc/DP200102073 http://purl.org/au-research/grants/arc/DP180100661 http://purl.org/au-research/grants/arc/FT210100063 http://creativecommons.org/licenses/by-nc-nd/4.0/ American Geophysical Union fulltext |
| spellingShingle | Neidhart, Tanja Sansom, Ellie Miljkovic, Katarina Collins, G.S. Eschenfelder, J. Daubar, I.J. Diversity of New Martian Crater Clusters Informs Meteoroid Atmospheric Interactions |
| title | Diversity of New Martian Crater Clusters Informs Meteoroid Atmospheric Interactions |
| title_full | Diversity of New Martian Crater Clusters Informs Meteoroid Atmospheric Interactions |
| title_fullStr | Diversity of New Martian Crater Clusters Informs Meteoroid Atmospheric Interactions |
| title_full_unstemmed | Diversity of New Martian Crater Clusters Informs Meteoroid Atmospheric Interactions |
| title_short | Diversity of New Martian Crater Clusters Informs Meteoroid Atmospheric Interactions |
| title_sort | diversity of new martian crater clusters informs meteoroid atmospheric interactions |
| url | http://purl.org/au-research/grants/arc/DP200102073 http://purl.org/au-research/grants/arc/DP200102073 http://purl.org/au-research/grants/arc/DP200102073 http://hdl.handle.net/20.500.11937/94749 |