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A new method of identifying metal-rich asteroids

Drube, Line and Harris, Alan (2016) A new method of identifying metal-rich asteroids. Asteroid Science Intersections with In-Space Mine Engineering (ASIME) 2016, 21-22 sep. 2016, Luxembourg City, Luxembourg.

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Official URL: http://fmispace.fmi.fi/fileadmin/templates/ASIME16/ASIME_Program_v4.1.pdf

Abstract

The compositions of asteroids are relevant not only to investigations of the evolution of the solar system and estimations of their potential to wreak devastation on impacting the Earth, but also to considerations of their value to asteroid miners. Reflection spectroscopy provides a guide to composition but the spectra of metal-­‐rich asteroids are largely featureless, which makes it difficult to identify them. Therefore, only a few metal-­‐rich near-­‐Earth asteroids have been identified to date. We have used data from the thermal-­‐infrared survey WISE/NEOWISE (Wright et al. 2010; Mainzer et al. 2011a) as well as from the Infrared Astronomical Satellite, IRAS, (Tedesco et al., 2002) to explore a new method of identifying metal-­‐rich asteroids by virtue of their relatively high thermal inertia. By fitting the datasets with a simple thermal model (NEATM; Harris 1998), and calculating the angle between the spin vector and the solar direction we have further explored the potential of the results of Harris and Drube (2014) to provide insight into relationships between asteroid thermal properties, surface composition, radar albedos, spin rate, etc. We present the latest results of our work and provide a demonstration of its potential.

Item URL in elib:https://elib.dlr.de/108561/
Document Type:Conference or Workshop Item (Speech)
Additional Information:info:eu-repo/grantAgreement/EC/H2020/640351
Title:A new method of identifying metal-rich asteroids
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Drube, LineLine.Drube (at) dlr.dehttps://orcid.org/0000-0003-2486-8894
Harris, AlanAlan.Harris (at) dlr.dehttps://orcid.org/0000-0001-8548-8268
Date:2016
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:asteroids, thermal-infrared, metal-rich
Event Title:Asteroid Science Intersections with In-Space Mine Engineering (ASIME) 2016
Event Location:Luxembourg City, Luxembourg
Event Type:international Conference
Event Dates:21-22 sep. 2016
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: Drube, Line
Deposited On:29 Nov 2016 13:44
Last Modified:31 Jul 2019 20:05

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