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arXiv · 2410.13244

Statistical signatures of interstellar turbulence in dust polarization maps

Ka Wai Ho·Ka Ho Yuen·Raphael Flauger·Alexei G. Kritsuk
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Abstract

We present results from a high-resolution interstellar turbulence simulation and show that it closely reproduces recent $Planck$ measurements. Our model captures the scaling of $EE$ and $BB$ spectra, and the $EE/BB$ ratio in the inertial range. The probability density function of the dust polarization fraction is also consistent with observations. The $TE$ cross-correlation is in broad agreement with the $Planck$ sky. This simulation provides new insights into the physical origins of the observed $E/B$ asymmetry and positive $TE$ signal, facilitating the development of advanced Galactic dust emission models for current and future cosmic microwave background experiments.

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Ka Wai Ho, Ka Ho Yuen, Raphael Flauger, Alexei G. Kritsuk. 2024-10-17. Statistical signatures of interstellar turbulence in dust polarization maps. https://doi.org/10.1103/vhhn-33jw

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