Revealing Cosmic Magnetism with Radio Polarimetry

Details Revealing Cosmic Magnetism with Radio Polarimetry Revealing Cosmic Magnetism with Radio Polarimetry

2007-12-18

arxiv.org/abs/0712.2862v1

PoS MRU:066,2007

Astronomy and Astrophysics

Astrophysics

15 pages, 8 embedded figures + 1 jpg figure. To appear in the proceedings of "From Planets to Dark Energy: the Modern Radio Un

Scientific paper

While gravitation sustains the on-going evolution of the cosmos, it is magnetism that breaks gravity's symmetry and that provides the pathway to the non-thermal Universe. By enabling processes such as anisotropic pressure support, particle acceleration, and jet collimation, magnetism has for billions of years regulated the feedback vital for returning matter to the interstellar and intergalactic medium. After reviewing recent results that demonstrate the unique view of magnetic fields provided by radio astronomy, I explain how the Square Kilometre Array will provide data that will reveal what cosmic magnets look like, how they formed, and what role they have played in the evolving Universe.

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