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Computing Needs for Astrobiology: Models of Planetary FormationTheories of planet formation indicate that a diverse range of physical and chemical processes determine the characteristics of a planetary system. Extensive numerical modeling is required to understand how planetary systems form, and to make quantitative assessments of the factors which determine the masses, spacings and volatile compound inventories of planets and small bodies within a planetary system. Fluid flow problems associated with the formation and evolution of protoplanetary disks include specific local calculations to provide physical insight, which are best performed on workstations, and large multifaceted simulations which require supercomputers with large memories. Formation and early growth of planetesimals display a similar range of computational requirements. Modeling the late stages of planetary accumulation is very CPU intensive, as it requires following a simple system of approx. hundreds of bodies for millions of dynamical (orbital) times. These varied computational needs could be met in the most cost-effective manner by a diverse set of computers, including workstations for individual PI's and dedicated time on various types of supercomputers which are specialized for differing tasks.
Document ID
20010064667
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Lissauer, Jack J.
(NASA Ames Research Center Moffett Field, CA United States)
DeVincenzi, Donald
Date Acquired
August 20, 2013
Publication Date
January 1, 2000
Subject Category
Astrophysics
Meeting Information
Meeting: Computational Astrobiology Workshop
Location: Monterey, CA
Country: United States
Start Date: June 2, 2000
Funding Number(s)
PROJECT: RTOP 344-50-92-02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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