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Interior responses to impacts by different impactor types

Ruedas, T. and Breuer, D. (2017) Interior responses to impacts by different impactor types. 48th Lunar and Planetary Science Conference, 20-24 Mar 2017, The Woodlands, TX, USA.

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Official URL: http://www.hou.usra.edu/meetings/lpsc2017/pdf/2321.pdf

Abstract

A number of numerical mantle convection studies from the past two decades have investigated the effects of very large meteorite impacts on mantle dynamics in terrestrial planets, especially Mars. On the grounds that most observed craters seem to have been produced by collisionally evolved bodies, probably main-belt asteroids, the impactors were generally assumed to be rocky and have material parameters similar to those of the target. However, the statistical analysis does not imply that all craters derive from an S-type asteroid, as there is a significant fraction of impactors whose properties differ substantially from those of the target, and the dynamical effects in the interior may be quite different even if the final crater is similar; candidate alternative impactors include C-type asteroids and comets. It is generally not possible to deduce the nature of the impactor from the final crater, because the remnants of the impactor are rarely preserved. We show by analysing scaling laws how different impactors may result in the same final crater on a given planet and investigate some dynamical effects for different impactor types for several bodies in the inner Solar System.

Item URL in elib:https://elib.dlr.de/111195/
Document Type:Conference or Workshop Item (Poster)
Title:Interior responses to impacts by different impactor types
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ruedas, T.thomas.ruedas (at) dlr.dehttps://orcid.org/0000-0002-7739-1412
Breuer, D.doris.breuer (at) dlr.deUNSPECIFIED
Date:March 2017
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Impacts
Event Title:48th Lunar and Planetary Science Conference
Event Location:The Woodlands, TX, USA
Event Type:international Conference
Event Dates:20-24 Mar 2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: Ruedas Gomez, Thomas
Deposited On:11 Apr 2017 12:31
Last Modified:31 Jul 2019 20:08

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