Magnetic Fields in our Galaxy: How Much Do We Know? |
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| Authors: | JL Han |
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| Institution: | (1) Beijing Astronomical Observatory, CAS, Jia-20 DaTun Rd., Chao Yang District, Beijing, 100012, China |
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| Abstract: | The large scale magnetic fields of our Galaxy have been mostly revealed by rotation measures (RMs) of pulsars and extragalactic radio sources. In the disk of our Galaxy, the average field strength over a few kpc scale
is about 1.8 μG, while the total field, including the random fields on smaller scales, has a strength of about 5 μG. The local
regular field, if it is part of the large scale field of a bisymmetric form, has a pitch angle of about -8°. There are at least three, and perhaps five, field reversals from the Norma arm to the outer skirt of our Galaxy.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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