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Results from Comet Nucleus Model Team at the International Space Science Institute, Bern, Schwitzerland.

Huebner, W.F. und Benkhoff, J. und Capria, M. T. und Coradini, A. und De Sanctis, M. C. und Enzian, A. und Orosei, R. und Prialnik, D. (1999) Results from Comet Nucleus Model Team at the International Space Science Institute, Bern, Schwitzerland. Adv. Space Res., 23 (3), Seiten 1283-1298.

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Kurzfassung

Five one-dimensional algorithms for heat and gas transport in porous icy bodies have been applied, each to four simplified compositions of comet nucleus models: (1) pure H2O ice, (2) a mixture of H2O and CO ices, (3) a mixture of H2O ice and dust, and (4) a mixture of H2O and CO ices and dust. In addition, two different pore radii were assumed in models 3 and 4. The algorithms were chosen on the basis of recent applications and independent code development and evolution. A sixth algorithm was used only in a few models. Results for spinning comet nucleus in the orbit of Comet 46P/Wirtanen were compared to establish credibility of the five algorithms. Discrepancies in results were discussed and isolated for possible causes. The algorithms were then investigated and modified by the presenting team members. After resolution of major differences from the simple models, each team member will be able to address more complex models of their own choosing with greater confidence. These models will include investigations of the effects of amorphous versus crystalline water ice, trapped gases versus frozen gases, multi-dimensional calculations, and dust mantle development and removal. Results and progress on the algorithms, and plans for further development are discussed.

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen: LIDO-Berichtsjahr=2001,
Titel:Results from Comet Nucleus Model Team at the International Space Science Institute, Bern, Schwitzerland.
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Huebner, W.F.Southwest Research Institute, San Antonio, TX, USA
Benkhoff, J.NICHT SPEZIFIZIERT
Capria, M. T.NICHT SPEZIFIZIERT
Coradini, A.CNR - Instituto di Astrofisica Spaziale, Rome, Italy
De Sanctis, M. C.CNR - Instituto di Astrofisica Spaziale, Rome, Italy
Enzian, A.JPL, Pasadena, CA, USA
Orosei, R.CNR - Instituto di Astrofisica Spaziale, Rome, Italy
Prialnik, D.Tel Aviv University, Dept. of Geophysics and Planetary Sciences, Ramat Aviv, Israel
Datum:1999
Erschienen in:Adv. Space Res.
Referierte Publikation:Ja
In ISI Web of Science:Ja
Band:23
Seitenbereich:Seiten 1283-1298
Status:veröffentlicht
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):NICHT SPEZIFIZIERT
Standort: Berlin-Adlershof
Institute & Einrichtungen:Institut für Weltraumsensorik und Planetenerkundung
Hinterlegt von: Susanne Pieth
Hinterlegt am:16 Sep 2005
Letzte Änderung:14 Jan 2010 18:45

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