Enhanced magneto-ionic fluctuations in the Milky Way's spiral arms

Details Enhanced magneto-ionic fluctuations in the Milky Way's spiral arms Enhanced magneto-ionic fluctuations in the Milky Way's spiral arms

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005mpge.conf...80h&link_type=abstract

The Magnetized Plasma in Galaxy Evolution, Proceedings of the conference held in Kraków, Poland, Sept. 27th - Oct. 1st, 2004, Ed

Computer Science

Scientific paper

The 1.4 GHz polarized continuum data of the Southern Galactic Plane Survey are ideally suited to study spatial variations in the turbulent properties of the magneto-ionic interstellar medium. Statistical analysis of rotation measures in the inner Galactic plane suggests an additional source of fluctuations in electron density and/or magnetic field in the Galaxy's spiral arms, with an outer scale of a few parsecs. A probable source for this additional component of structure is HII regions from relatively late-type stars, which are sufficiently abundant and of the appropriate size to account for the additional structure.

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