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arXiv · 1711.11108

Dust-polarization maps for local interstellar turbulence

Alexei G. Kritsuk·Raphael Flauger·Sergey D. Ustyugov
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Abstract

We show that simulations of magnetohydrodynamic turbulence in the multiphase interstellar medium yield an $E/B$ ratio for polarized emission from Galactic dust in broad agreement with recent $Planck$ measurements. In addition, the $B$-mode spectra display a scale dependence that is consistent with observations over the range of scales resolved in the simulations. The simulations present an opportunity to understand the physical origin of the $E/B$ ratio, and a starting point for more refined models of Galactic emission of use for both current and future CMB experiments.

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Alexei G. Kritsuk, Raphael Flauger, Sergey D. Ustyugov. 2018-07-06. Dust-polarization maps for local interstellar turbulence. https://doi.org/10.1103/physrevlett.121.021104

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