University of Connecticut

Events Calendar

Astronomy Seminar

Wednesday, April 11, 2018
2:00pm – 3:00pm

Storrs Campus
IMS159

Dr. Ian Stephens, Harvard-Smithsonian Center for Astrophysics, Harvard University

Trying to Make Sense of Polarization Patterns in Circumstellar Disks

In the era of ALMA, we can now resolve polarization within circumstellar disks at (sub)millimeter wavelengths. While we initially hoped that these observations would give us insight on magnetic fields within disks, the observed polarization patterns indicate other possible mechanisms may polarize the signal. These mechanisms include polarization from scattering and emission from grains aligned with the radiation anisotropy. Can we make sense of all these disk polarization observations? In this presentation, I will show many polarization observations toward disks, and I will discuss the theoretical expectations for different polarization mechanisms. Hopefully, the answer to the question will be an astounding "Yes!"

Contact:

Prof. C. Battersby

Physics Department (primary)

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