1 VO Theory Use Cases – Intermediate Scale David De Young Project Scientist US NVO IVOA Theory...
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![Page 1: 1 VO Theory Use Cases – Intermediate Scale David De Young Project Scientist US NVO IVOA Theory Interest Group S. Lorenzo del Escorial - 10/05.](https://reader035.fdocuments.us/reader035/viewer/2022062618/55149d3b550346ea6e8b5801/html5/thumbnails/1.jpg)
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VO Theory Use Cases –VO Theory Use Cases –Intermediate ScaleIntermediate Scale
David De Young Project Scientist US NVO
IVOA Theory Interest Group S. Lorenzo del Escorial - 10/05
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VO Theory Use Cases –VO Theory Use Cases –Intermediate ScaleIntermediate Scale
Two Principal Areas Explored to Date
N Body Simulations of Globular Cluster Evolution
2 D and 3 D MHD Simulations of Collimated Outflows from AGN
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N Body Simulations of N Body Simulations of Globular Cluster EvolutionGlobular Cluster Evolution
P. Hut, P. Teuben et al. Follows Dynamical and Chemical
Evolution of 100,000 Individual Stars Tracks Individual Orbits, Binary
Capture, etc.
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N Body Simulations of N Body Simulations of Globular Cluster EvolutionGlobular Cluster Evolution
Some Astrophysics Addressed:– Overall Cluster Evolution– Core Collapse– Binary Fraction; X-Ray Luminosity– Evolution of HR Diagram– Late Stages of Stellar Evolution and Mass Loss
Allows Direct Comparison with Observations
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N Body Simulations of N Body Simulations of Globular Cluster EvolutionGlobular Cluster Evolution
![Page 6: 1 VO Theory Use Cases – Intermediate Scale David De Young Project Scientist US NVO IVOA Theory Interest Group S. Lorenzo del Escorial - 10/05.](https://reader035.fdocuments.us/reader035/viewer/2022062618/55149d3b550346ea6e8b5801/html5/thumbnails/6.jpg)
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N Body Simulations of N Body Simulations of Globular Cluster EvolutionGlobular Cluster Evolution
![Page 7: 1 VO Theory Use Cases – Intermediate Scale David De Young Project Scientist US NVO IVOA Theory Interest Group S. Lorenzo del Escorial - 10/05.](https://reader035.fdocuments.us/reader035/viewer/2022062618/55149d3b550346ea6e8b5801/html5/thumbnails/7.jpg)
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N Body Simulations of N Body Simulations of Globular Cluster EvolutionGlobular Cluster Evolution
![Page 8: 1 VO Theory Use Cases – Intermediate Scale David De Young Project Scientist US NVO IVOA Theory Interest Group S. Lorenzo del Escorial - 10/05.](https://reader035.fdocuments.us/reader035/viewer/2022062618/55149d3b550346ea6e8b5801/html5/thumbnails/8.jpg)
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N Body Simulations of N Body Simulations of Globular Cluster EvolutionGlobular Cluster Evolution
Data Requirements:– Does Not Use Arrays for Most Data– Follows Time Intervals of Individual Orbits– Stores Orbital Data with Differing Timelines– Requires Fly Through Capability
Uses AMNH Rose Planetarium
– Size of Data Sets: ~ TB
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N Body Simulations of N Body Simulations of Globular Cluster EvolutionGlobular Cluster Evolution
Requires Definition of Theory MetaData Standards Before Further Progress Can Be Made
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MHD Simulations of MHD Simulations of Collimated Outflows from Collimated Outflows from
AGNAGN T. Jones, D. De Young, I. Tregillis, S.
O’Neal et al. Self Consistent MHD Simulations of Large
Scale Outflows to ~ 100 kpc Follows Evolution of Relativistic Particle
Population Including Shock Acceleration
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MHD Simulations of MHD Simulations of Collimated Outflows from Collimated Outflows from
AGNAGN Some Astrophysics Addressed
– Global Evolution of Large Scale Jets– Role of Interaction with Ambient Medium –
Entrainment and Jet Deceleration– Evolution of Magnetic Amplification – Evolution of Particle Spectrum– Distribution of Synchrotron Radiation as a
Function of Space and Time
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MHD Simulations of MHD Simulations of Collimated Outflows from Collimated Outflows from
AGNAGN
ElectronsRadio
VLA
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MHD Simulations of MHD Simulations of Collimated Outflows from Collimated Outflows from
AGNAGNIC-CMB
ChandraSSC
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MHD Simulations of MHD Simulations of Collimated Outflows from Collimated Outflows from
AGNAGN
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MHD Simulations of MHD Simulations of Collimated Outflows from Collimated Outflows from
AGNAGN
Code is Fully Parallel Now Running at San Diego Supercomputer
Ctr. Data Format Highly Specialized, Non Std. Subsequent Complex Post Processing
Required Size of Raw Data Sets: Up to Tb per Run
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MHD Simulations of MHD Simulations of Collimated Outflows from Collimated Outflows from
AGNAGN
Requires Definition of Theory MetaData Standards Before Further Progress Can Be Made