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.
@article{arxiv.1711.11108,
title = {Dust-polarization maps for local interstellar turbulence},
author = {Alexei G. Kritsuk and Raphael Flauger and Sergey D. Ustyugov},
journal= {arXiv preprint arXiv:1711.11108},
year = {2018}
}
Comments
5 pages, 2 figures, to appear in Phys. Rev. Letters