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A Clash of Clusters Provides New Clue to Dark Matter
Special ACKS Seminar: Dragan Huterer
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ACKS Seminar: Niccolo Bucciantini (UC Berkeley)
| What | ACKS |
|---|---|
| When |
27 September 07 from 04:00 pm to 05:00 pm |
| Where | CAMPUS: Phys & Astrophys Bldg., 1st fl., conf rm (102/103) |
| Contact Name | Lukasz Stawarz |
| Contact Email | stawarz@slac.stanford.edu |
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Numerical modeling of the evolution and structure of Pulsar Wind Nebulae
I will discuss how the combination of unprecedented high resolution data, from the HUBBLE and CHANDRA satellites, and numerical simulations, with recently developed codes for relativistic MHD, have improved our understanding of the interaction of a Pulsar Wind with the environment. The complex axisymmetric emission features, known as jet-torus structure, that characterize many of these objects is shown to be related to the wind properties, and can be used as a probe for the wind at large distances. Comparison with spectral maps and polarization maps also confirms the validity of the model. I will review the standard theory of PWNe, their evolution both inside and outside the SNR, show how many complex morphology are recovered, and present recent results concerning the short time variability of the wisps region, and future possible development concerning gamma-ray emission.
MASS: Lance Simms