Numerical modeling of the formation of Shackleton crater at the lunar south pole
The lunar south pole, on the rim of Shackleton crater, is the target for the next human landing on the Moon. We use numerical modeling to investigate the formation of that crater and the distribution of ejecta around the south pole. We find that a 1.5 km diameter asteroid with a chondrite-like compo...
Published in: | Icarus |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://curis.ku.dk/portal/da/publications/numerical-modeling-of-the-formation-of-shackleton-crater-at-the-lunar-south-pole(1cacefd8-cf7f-424a-88c0-34d9ec1ed146).html https://doi.org/10.1016/j.icarus.2020.113992 https://curis.ku.dk/ws/files/291681109/1_s2.0_S0019103520303584_main.pdf |
id |
ftcopenhagenunip:oai:pure.atira.dk:publications/1cacefd8-cf7f-424a-88c0-34d9ec1ed146 |
---|---|
record_format |
openpolar |
spelling |
ftcopenhagenunip:oai:pure.atira.dk:publications/1cacefd8-cf7f-424a-88c0-34d9ec1ed146 2023-05-15T18:21:50+02:00 Numerical modeling of the formation of Shackleton crater at the lunar south pole Halim, Samuel H. Barrett, Natasha Boazman, Sarah J. Gawronska, Aleksandra J. Gilmour, Cosette M. McCanaan, Katie Satyakumar, Animireddi V. Shah, Jahnavi Kring, David A. 2021-01-15 application/pdf https://curis.ku.dk/portal/da/publications/numerical-modeling-of-the-formation-of-shackleton-crater-at-the-lunar-south-pole(1cacefd8-cf7f-424a-88c0-34d9ec1ed146).html https://doi.org/10.1016/j.icarus.2020.113992 https://curis.ku.dk/ws/files/291681109/1_s2.0_S0019103520303584_main.pdf eng eng info:eu-repo/semantics/openAccess Halim , S H , Barrett , N , Boazman , S J , Gawronska , A J , Gilmour , C M , McCanaan , K , Satyakumar , A V , Shah , J & Kring , D A 2021 , ' Numerical modeling of the formation of Shackleton crater at the lunar south pole ' , Icarus , vol. 354 , 113992 . https://doi.org/10.1016/j.icarus.2020.113992 article 2021 ftcopenhagenunip https://doi.org/10.1016/j.icarus.2020.113992 2022-02-24T00:44:14Z The lunar south pole, on the rim of Shackleton crater, is the target for the next human landing on the Moon. We use numerical modeling to investigate the formation of that crater and the distribution of ejecta around the south pole. We find that a 1.5 km diameter asteroid with a chondrite-like composition, vertically impacting a gabbroic anorthositic target at 15 km/s, forms a crater morphologically similar to Shackleton. If the impact had a shallower 45-degree trajectory, the asteroid may have had a diameter of 1.75 km and velocity of 15 km/s or a diameter of 1.5 km and velocity of 20 km/s. Impact melt is generated during the impact, with most of the melt volume ponding on the crater floor. We introduce a water-bearing layer at various depths in the target and find that the burial depth of a volatile layer influences the final crater morphology and may explain the morphology of Shackleton. Article in Journal/Newspaper South pole University of Copenhagen: Research Shackleton South Pole Icarus 354 113992 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
description |
The lunar south pole, on the rim of Shackleton crater, is the target for the next human landing on the Moon. We use numerical modeling to investigate the formation of that crater and the distribution of ejecta around the south pole. We find that a 1.5 km diameter asteroid with a chondrite-like composition, vertically impacting a gabbroic anorthositic target at 15 km/s, forms a crater morphologically similar to Shackleton. If the impact had a shallower 45-degree trajectory, the asteroid may have had a diameter of 1.75 km and velocity of 15 km/s or a diameter of 1.5 km and velocity of 20 km/s. Impact melt is generated during the impact, with most of the melt volume ponding on the crater floor. We introduce a water-bearing layer at various depths in the target and find that the burial depth of a volatile layer influences the final crater morphology and may explain the morphology of Shackleton. |
format |
Article in Journal/Newspaper |
author |
Halim, Samuel H. Barrett, Natasha Boazman, Sarah J. Gawronska, Aleksandra J. Gilmour, Cosette M. McCanaan, Katie Satyakumar, Animireddi V. Shah, Jahnavi Kring, David A. |
spellingShingle |
Halim, Samuel H. Barrett, Natasha Boazman, Sarah J. Gawronska, Aleksandra J. Gilmour, Cosette M. McCanaan, Katie Satyakumar, Animireddi V. Shah, Jahnavi Kring, David A. Numerical modeling of the formation of Shackleton crater at the lunar south pole |
author_facet |
Halim, Samuel H. Barrett, Natasha Boazman, Sarah J. Gawronska, Aleksandra J. Gilmour, Cosette M. McCanaan, Katie Satyakumar, Animireddi V. Shah, Jahnavi Kring, David A. |
author_sort |
Halim, Samuel H. |
title |
Numerical modeling of the formation of Shackleton crater at the lunar south pole |
title_short |
Numerical modeling of the formation of Shackleton crater at the lunar south pole |
title_full |
Numerical modeling of the formation of Shackleton crater at the lunar south pole |
title_fullStr |
Numerical modeling of the formation of Shackleton crater at the lunar south pole |
title_full_unstemmed |
Numerical modeling of the formation of Shackleton crater at the lunar south pole |
title_sort |
numerical modeling of the formation of shackleton crater at the lunar south pole |
publishDate |
2021 |
url |
https://curis.ku.dk/portal/da/publications/numerical-modeling-of-the-formation-of-shackleton-crater-at-the-lunar-south-pole(1cacefd8-cf7f-424a-88c0-34d9ec1ed146).html https://doi.org/10.1016/j.icarus.2020.113992 https://curis.ku.dk/ws/files/291681109/1_s2.0_S0019103520303584_main.pdf |
geographic |
Shackleton South Pole |
geographic_facet |
Shackleton South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Halim , S H , Barrett , N , Boazman , S J , Gawronska , A J , Gilmour , C M , McCanaan , K , Satyakumar , A V , Shah , J & Kring , D A 2021 , ' Numerical modeling of the formation of Shackleton crater at the lunar south pole ' , Icarus , vol. 354 , 113992 . https://doi.org/10.1016/j.icarus.2020.113992 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.icarus.2020.113992 |
container_title |
Icarus |
container_volume |
354 |
container_start_page |
113992 |
_version_ |
1766201160514928640 |