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How to find metal-rich asteroids

Harris, Alan W. and Drube, Line (2014) How to find metal-rich asteroids. Astrophysical Journal Letters, 785 (L4). Institute of Physics (IOP) Publishing. DOI: 10.1088/2041-8205/785/1/L4 ISSN 2041-8205

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Official URL: http://iopscience.iop.org/2041-8205/785/1/L4/

Abstract

The metal content of asteroids is of great interest, not only for theories of their origins and the evolution of the solar system but, in the case of near-Earth objects (NEOs), also for impact mitigation planning and endeavors in the field of planetary resources. However, since the reflection spectra of metallic asteroids are largely featureless, it is difficult to identify them and relatively few are known. We show how data from the Wide-field Infrared Survey Explorer (WISE)/NEOWISE thermal-infrared survey and similar surveys, fitted with a simple thermal model, can reveal objects likely to be metal rich. We provide a list of candidate metal-rich NEOs. Our results imply that future infrared surveys with the appropriate instrumentation could discover many more metal-rich asteroids, providing valuable data for assessment of the impact hazard and the potential of NEOs as reservoirs of vital materials for future interplanetary space activities and, eventually perhaps, for use on Earth.

Item URL in elib:https://elib.dlr.de/88611/
Document Type:Article
Additional Information:The research leading to these results has received funding from the European Union’s Seventh Framework Programme (FP7/2007–2013) under grant agreement No. 282703 (the NEOShield Project).
Title:How to find metal-rich asteroids
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Harris, Alan W.alan.harris (at) dlr.deUNSPECIFIED
Drube, LineLine.Drube (at) dlr.dehttps://orcid.org/0000-0003-2486-8894
Date:10 April 2014
Journal or Publication Title:Astrophysical Journal Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:785
DOI :10.1088/2041-8205/785/1/L4
Editors:
EditorsEmail
The American Astronomical Society, AASUNSPECIFIED
Publisher:Institute of Physics (IOP) Publishing
ISSN:2041-8205
Status:Published
Keywords:infrared: planetary systems – minor planets, asteroids: general
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 > Leitungsbereich PF
Deposited By: Harris, Prof. Alan
Deposited On:26 May 2014 08:51
Last Modified:06 Sep 2019 15:19

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