USRA Houston Repository

Numerical modeling of the formation of Shackleton crater at the lunar south pole

Show simple item record Halim, Samuel Barrett, Natasha Boazman, Sarah Gawronska, Aleksandra Gilmour, Cosette Harish McCanaan, Kathryn Satyakumar, Animireddi V. Shah, Jahnavi Kring, David A. (David Allen)
dc.coverage.spatial Moon 2020-09-23T19:38:47Z 2020-09-23T19:38:47Z 2021-01-15
dc.identifier.citation Halim S.H., Barrett N., Boazman S.J., et al. 2021. "Numerical modeling of the formation of Shackleton crater at the lunar south pole". Icarus. 354. en
dc.identifier.other DOI:10.1016/j.icarus.2020.113992
dc.description.abstract 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. en
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.ispartofseries LPI contribution ; no. 2442
dc.subject Lunar craters en
dc.subject Moon en
dc.title Numerical modeling of the formation of Shackleton crater at the lunar south pole en
dc.type Article en
dc.rights.license This article is available under the Creative Commons CC-BY-NC-ND license and permits non-commercial use of the work as published, without adaptation or alteration provided the work is fully attributed.

Files in this item

This item appears in the following Collection(s)

  • LPI Contributions
    Documents the scientific research, meetings, and outreach products from the LPI.

Show simple item record

Search HOU Repository


My Account