Polarized emission by aligned grains in the Mie regime : application to protoplanetary disks observed by ALMA

23 Jan 2020 Guillet V. Girart J. M. Maury A. J. Alves F. O.

The azimuthal polarization patterns observed in some protoplanetary disks by ALMA at millimeter wavelength have raised doubts about their being produced by dust grains aligned with the magnetic field lines. These conclusions were based on the calculations of dust polarized emission in the Rayleigh regime, i.e. for grain sizes much smaller than the wavelength... (read more)

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