Orateur
Dr
Katia Ferrière
(IRAP Toulouse)
Description
I will review the observational properties of interstellar magnetic fields
in the disk and halo of our Galaxy. These properties are inferred from
a variety of observational methods, primarily based on polarization
of starlight, polarization of dust infrared emission, Zeeman splitting,
Faraday rotation, and synchrotron emission. I will discuss each of these
methods in some detail and explain what it tells us about the strength,
direction, and spatial structure of interstellar magnetic fields. I will
then compare the observational properties to theoretical predictions
from dynamo theory.