Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-02-24
Mon.Not.Roy.Astron.Soc.368:511-517,2006
Astronomy and Astrophysics
Astrophysics
8 pages, 9 figures. accepted for publication in MNRAS
Scientific paper
10.1111/j.1365-2966.2006.10212.x
Scattering of the cosmic microwave background (CMB) in clusters of galaxies polarizes the radiation. We explore several polarization components which have their origin in the kinematic quadrupole moments induced by the motion of the scattering electrons, either directed or random. Polarization levels and patterns are determined in a cluster simulated by the hydrodynamical Enzo code. We find that polarization signals can be as high as $\sim 1 \mu$K, a level that may be detectable by upcoming CMB experiments.
Norman Michael L.
O'Shea Brian W.
Rephaeli Yoel
Shimon Meir
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