Physics
Scientific paper
Feb 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004mim..proc...19w&link_type=abstract
The Magnetized Interstellar Medium, Proceedings of the conference, held in Antalya, Turkey, September 8 - 12, 2003, Eds: B. Uyan
Physics
1
Scientific paper
The Milky Way was shown to be a spiral galaxy first by mapping the HI gas, then through studying HII regions and more recently by CO observations. The existence of magnetic fields in the Milky Way was first deduced from optical starlight polarization observations although earlier radio continuum observations have been made, that required magnetic fields to be present. Definitive proof of the existence of magnetic fields in our Galaxy came from radio polarization observations. Zeeman effect detection in molecular clouds followed. Additional methods of studying of magnetic fields is to use extragalactic sources and pulsars as probes of the interstellar Faraday effect. The combination of all these data should allow us to determine the magnetic field morphology. We examine some recent observations of pulsars and extragalactic radio sources in the Galactic plane as well as radio polarization data to point out problems and limitations of these data in giving us information about the morphology of the magnetic field in the Galaxy.
Mitra David
Wielebinski Richard
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