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The Origin and Evolution of Cosmic Magnetism
B. M. Gaensler, R. Beck, L. Feretti
Magnetism is one of the four fundamental forces. However, the origin of magnetic fields in stars, galaxies and clusters is an open problem in astrophysics and fundamental physics.…
A Distant Extended Spiral Arm in the Fourth Quadrant of the Milky Way
N. M. McClure-Griffiths, J. M. Dickey, B. M. Gaensler +1
Using data from the Southern Galactic Plane Survey we present a possible distant spiral arm in the fourth quadrant of the Milky Way. The very distinct and cohesive feature can be t…
Magnetic Fields and Ionized Gas in the inner Galaxy: An Outer Scale for Turbulence and the Possible Role of HII Regions
M. Haverkorn, B. M. Gaensler, N. M. McClure-Griffiths +2
We present an analysis of rotation measure (RM) fluctuations from the Test Region of the Southern Galactic Plane Survey (SGPS), along with emission measure (EM) fluctuations in the…