Magnetic Fields in our Galaxy: How Much Do We Know?
- 108 Downloads
The large scale magnetic fields of our Galaxy have been mostly revealed by rotationmeasures (RMs) of pulsars and extragalactic radio sources. In the disk of our Galaxy, the averagefield strength over a few kpc scale is about 1.8 µG, while the total field, including the random fieldson smaller scales, has a strength of about 5 µG. The local regular field, if it is part of the large scalefield of a bisymmetric form, has a pitch angle of about -8°. There are at least three, and perhapsfive, field reversals from the Norma arm to the outer skirt of our Galaxy.
Unable to display preview. Download preview PDF.