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Session 51 - Interstellar Medium II.
Display session, Thursday, January 08
Exhibit Hall,

[51.15] Measurements of Time Variable Anisotropy in the Interstellar Medium

K. Desai (NRAO/NRL), A. Fey (USNO)

We have observed several extragalactic sources known to be affected by interstellar scattering in the Cygnus region. We show that the scattering is anisotropic, and that the anisotropy is time-variable and frequency independent. These observations add to the growing number of measurements suggesting that a significant component of interstellar scattering is anisotropic. We also present a simple analysis of the properties of the magnetic fields in the Cygnus region.

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