| NSF Org: |
AST Division Of Astronomical Sciences |
| Recipient: |
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| Initial Amendment Date: | July 26, 2005 |
| Latest Amendment Date: | June 10, 2010 |
| Award Number: | 0507164 |
| Award Instrument: | Continuing Grant |
| Program Manager: |
Katharina Lodders
AST Division Of Astronomical Sciences MPS Directorate for Mathematical and Physical Sciences |
| Start Date: | August 1, 2005 |
| End Date: | July 31, 2011 (Estimated) |
| Total Intended Award Amount: | $0.00 |
| Total Awarded Amount to Date: | $354,707.00 |
| Funds Obligated to Date: |
FY 2006 = $116,563.00 FY 2007 = $126,128.00 |
| History of Investigator: |
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| Recipient Sponsored Research Office: |
4765 WALNUT ST STE B BOULDER CO US 80301-2575 (720)974-5888 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
4765 WALNUT ST STE B BOULDER CO US 80301-2575 |
| Primary Place of
Performance Congressional District: |
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| Unique Entity Identifier (UEI): |
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| Parent UEI: |
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| NSF Program(s): | GALACTIC ASTRONOMY PROGRAM |
| Primary Program Source: |
app-0106 app-0107 |
| Program Reference Code(s): |
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| Program Element Code(s): |
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| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.049 |
ABSTRACT
AST-0507164
INSTITUTION: Space Science Institute
PI: Barbara Whitney
TITLE: Radiation Transfer in Aligned Grains: Probing Magnetic Fields in Molecular Clouds, Protostars, and Disks
ABSTRACT
Drs. Barbara Whitney (Space Science Institute), Fabian Heitsch (University Observatory, Munich, Germany), Alexandre Lazarian (University of Wisconsin, Madison) and Michael Wolff (Space Science Institute) will undertake a program to provide improved tools for interpreting polarization data in star formation regions. This will be accomplished by combining radiation transfer, magneto-hydrodynamic simulations, and grain alignment theories. Modification of existing codes will be used to calculate emission, extinction, and scattering from aligned grains while simultaneously solving for the temperature of the grains as a function of grain size, in arbitrary 3-D density structures with arbitrary luminosity sources. The codes will provide spectral energy distributions and images, including linear and circular polarization, at any wavelength. Computation of molecular cloud/cloud core density and magnetic field grids, using an MHD code using the latest grain alignment theories, will also be undertaken. The purpose of the program is to test grain alignment theories and probe magnetic structures in disks, protostellar envelopes, and molecular clouds. The tools developed in this research program will be made available to the general astronomical community, providing for a broader impact.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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