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The Accuracy of the Warm Spitzer Near-Earth Object Survey

Harris, A.W. und Mommert, M. und Hora, J.L. und Mueller, M. und Trilling, D.E. und Bhattacharya, B. und Bottke, W.F. und Chesley, S. und Delbo, M. und Emery, J.P. und Fazio, G.G. und Mainzer, A. und Penprase, B. und Smith, H.A. und Spahr, T.B. und Stansberry, J.A. und Thomas, C.A. (2010) The Accuracy of the Warm Spitzer Near-Earth Object Survey. In: Bulletin of the American Astronomical Society, 42 (4), Seite 1081. American Astronomical Society. American Astronomical Society Division for Planetary Sciences meeting #42, 3-8 Oct 2010, Pasadena, USA. ISSN 0002-7537

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Offizielle URL: http://www.abstractsonline.com/plan/ViewAbstract.aspx?mID=2704&sKey=8102c03d-20b1-47e2-951c-335d761edbf4&cKey=781a00a6-6f4f-4cc0-994f-b47b34ae51d2&mKey={D515DFC0-245C-4047-81CC-C221DC1A54C6}

Kurzfassung

We report on observations of near-Earth objects (NEOs) performed with IRAC as part of our on-going (2009-2011) Warm Spitzer NEO survey (“ExploreNEOs”), the primary aim of which is to provide sizes and albedos of some 700 NEOs. The emphasis of the work described here is an assessment of the overall accuracy of our survey results, which are based on a semi-empirical generalized model of asteroid thermal emission. The set of some 170 NEOs in our current Warm Spitzer results catalog contains 28 for which published taxonomic classifications are available, and 14 for which relatively reliable published diameters and albedos are available. From a comparison of the Warm Spitzer results with results expected on the basis of previous observations, we conclude that Warm Spitzer diameters and albedos are accurate to about 25% and 50%, respectively. Cases in which agreement with results from the literature is worse than expected are highlighted and discussed; these include the potential spacecraft target 138911 2001 AE2. This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA.

Dokumentart:Konferenzbeitrag (Paper)
Titel:The Accuracy of the Warm Spitzer Near-Earth Object Survey
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Harris, A.W.alan.harris@dlr.de
Mommert, M.michael.mommert@dlr.de
Hora, J.L.Harvard-Smithsonian Center for Astrophysics, USA
Mueller, M.Universite de Nice Sophia Antipolis, France
Trilling, D.E.Northern Arizona University, USA
Bhattacharya, B.NASA Herschel Science Center Caltech, USA
Bottke, W.F.Southwest Research Institute, USA
Chesley, S.Jet Propulsion Laboratory, California Institute of Technology, USA
Delbo, M.Universite de Nice Sophia Antipolis, France
Emery, J.P.Department of Earth and Planetary Sciences, University of Tennessee, USA
Fazio, G.G.Harvard-Smithsonian Center for Astrophysics, USA
Mainzer, A.Jet Propulsion Laboratory, California Institute of Technology, USA
Penprase, B.Department of Physics and Astronomy, Pomona College, USA
Smith, H.A.Harvard-Smithsonian Center for Astrophysics, USA
Spahr, T.B.Harvard-Smithsonian Center for Astrophysics, USA
Stansberry, J.A.Steward Observatory, University of Arizona, USA
Thomas, C.A.Northern Arizona University, USA
Datum:Oktober 2010
Erschienen in:Bulletin of the American Astronomical Society
Band:42
Seitenbereich:Seite 1081
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
Marvel, K.B.NICHT SPEZIFIZIERT
Verlag:American Astronomical Society
ISSN:0002-7537
Status:veröffentlicht
Stichwörter:Near-Earth objects, Spitzer Space telescope
Veranstaltungstitel:American Astronomical Society Division for Planetary Sciences meeting #42
Veranstaltungsort:Pasadena, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:3-8 Oct 2010
Veranstalter :American Astronomical Society
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EW - Erforschung des Weltraums
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EW - Erforschung des Weltraums
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Asteroiden und Kometen (alt)
Standort: Berlin-Adlershof
Institute & Einrichtungen:Institut für Planetenforschung > Asteroiden und Kometen
Hinterlegt von: Prof. Alan Harris
Hinterlegt am:03 Jan 2011 20:33
Letzte Änderung:03 Jan 2011 20:33

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