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Interaction between gas and ice phase in the three periods of solar nebula

Tornow, Carmen and Kührt, Ekkehard and Kupper, Stefan and Motschmann, Uwe (2010) Interaction between gas and ice phase in the three periods of solar nebula. In: Proceedings of the International Astronomical Union, Vol. 263, pp. 50-54. Cambridge University Press. Meteoriods 2010-International Conference on Minor Bodies in the Solar System, 24.-28.5.2010, Breckeridge, USA. ISBN 9780-521-76488-9. ISSN 1743-9213

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We simulate the chemical processes in the three evolution periods of the solar nebula, which are (i) the quasi-stationary prestellar cloud core, (ii) the gravitationally collapsing protostellar core, and (iii) the evolving gas-dust disk. Our purpose is to identify chemical parameters which reflect special aspects of the interactions between the gas and ice phase in the different periods, e.g. isotopic or molecular ratios. In this study we derive the D/H and 15N/14N ratio of selected compounds as well as the CO2/H2O ratio to measure the fraction of non-polar to polar ice in the grain mantles. The chosen ratios depend on the depletion-enrichment relation between the ice and gas phases driven by the thermal evolution in each period, especially during the collapse. Hence, we have made great efforts in order to derive realistic and compact hydrodynamic models to describe the evolutionary periods of the solar nebula.

Document Type:Conference or Workshop Item (Speech)
Title:Interaction between gas and ice phase in the three periods of solar nebula
AuthorsInstitution or Email of Authors
Tornow, Carmencarmen.tornow@dlr.de
Kührt, Ekkehardekkehard.kuehrt@dlr.de
Kupper, Stefanstefan.kupper@dlr.de
Motschmann, UweUniversität Braunschweig; Institut für Theoretische Physik, Technische Universität Braunschweig, Braunschweig, Germany
Journal or Publication Title:Proceedings of the International Astronomical Union
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:Vol. 263
Page Range:pp. 50-54
Fernández, J.A.julio@fisica.edu.uy
Lazzaro, D.lazzaro@on.br
Prialnik, D.dina@planet.tau.ac.il
Schulz, R.rschulz@rssd.esa.int
Publisher:Cambridge University Press
Series Name:Proceedings of the International Astronomical Union
Keywords:Astrochemistry, star formation, comets, hydrodynamics, molecular processes
Event Title:Meteoriods 2010-International Conference on Minor Bodies in the Solar System
Event Location:Breckeridge, USA
Event Type:international Conference
Event Dates:24.-28.5.2010
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Asteroiden und Kometen (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Laura-Maria Brumm
Deposited On:13 Oct 2010 12:25
Last Modified:13 Oct 2010 12:25

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