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A novel and simple means to estimate asteroid thermal inertia

Drube, Line and Harris, Alan (2016) A novel and simple means to estimate asteroid thermal inertia. In: Bulletin of the American Astronomical Society, 48 (7), p. 312. AAS. American Astronomical Society, Division for Planetary Sciences (DPS)/EPSC meeting 2016, 16.-21. Okt. 2016, Pasadena, California.

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Official URL: https://aas.org/files/dps-epsc-abstract-book-final.pdf


Calculating accurate values of thermal inertia for asteroids is a difficult process requiring a shape model, thermal-infrared observations of the object obtained over broad ranges of rotation period and aspect angle, and detailed thermophysical modeling. Consequently, reliable thermal inertia values are currently available for relatively few asteroids. On the basis of simple asteroid thermal modeling we have developed an empirical relationship enabling the thermal inertia of an asteroid to be estimated given adequate measurements of its thermal-infrared continuum and knowledge of its spin vector. In particular, our thermal-inertia estimator can be applied to hundreds of objects in the WISE cryogenic archive (limited by the availability of spin vectors). To test the accuracy of our thermal-inertia estimator we have used it to estimate thermal inertia for near-Earth asteroids, main-belt asteroids, Centaurs, and trans-Neptunian objects with known thermal inertia values derived from detailed thermophysical modeling. In nearly all cases the estimates agree within the error bars with the values derived from thermophysical modeling.

Item URL in elib:https://elib.dlr.de/107297/
Document Type:Conference or Workshop Item (Lecture)
Title:A novel and simple means to estimate asteroid thermal inertia
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Drube, LineUNSPECIFIEDhttps://orcid.org/0000-0003-2486-8894UNSPECIFIED
Harris, AlanUNSPECIFIEDhttps://orcid.org/0000-0001-8548-8268UNSPECIFIED
Journal or Publication Title:Bulletin of the American Astronomical Society
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 312
EditorsEmailEditor's ORCID iDORCID Put Code
Keywords:Asteroid, near-Earth object, infrared observations, thermal inertia
Event Title:American Astronomical Society, Division for Planetary Sciences (DPS)/EPSC meeting 2016
Event Location:Pasadena, California
Event Type:international Conference
Event Dates:16.-21. Okt. 2016
Organizer:American Astronomical Society - DPS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Vorhaben Planetary Evolution and Life (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Leitungsbereich PF
Deposited By: Harris, Prof. Alan
Deposited On:03 Nov 2016 08:08
Last Modified:20 Jun 2021 15:48

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