- Galactic dust in total and polarized emission
course on Galactic Dust is to be related to the course by F. Boulanger
on the Galactic magnetic field, and on Galactic Foregrounds.
I will present our current knowledge of interstellar dust, with a
particular focus on the optical properties of dust at high latitude, in
unpolarized en polarized emission. I will detail how the fluctuations
of dust polarized emission is intrincated with various
not-well-constrained physics : the structure and turbulence of the
magnetic field, the variation of grain alignment, and the variations of
dust properties, and present what we have learnt about this from Planck.
- A general overview on interstellar dust :
- Draine, B. T. (2004). Astrophysics of Dust in Cold Clouds. The Cold Universe, 213.
- Planck results on dust properties
- In total (unpolarized) emission :
2013 results. XI. All-sky model of thermal dust emission. Astronomy and
Astrophysics, 571, A11. http://doi.org/10.1051/0004-6361/201323195
intermediate results. XXIX. All-sky dust modelling with Planck, IRAS,
and WISE observations. Astronomy and Astrophysics, 586, A132.
- In polarized emission :
intermediate results. XIX. An overview of the polarized thermal
emission from Galactic dust. Astronomy and Astrophysics, 576, A104.
intermediate results. XX. Comparison of polarized thermal emission from
Galactic dust with simulations of MHD turbulence. Astronomy and
Astrophysics, 576, A105. http://doi.org/10.1051/00046361/201424086
intermediate results. XXI. Comparison of polarized thermal emission
from Galactic dust at 353 GHz with interstellar polarization in the
visible. Astronomy and Astrophysics, 576, A106.
intermediate results. XXII. Frequency dependence of thermal emission
from Galactic dust in intensity and polarization. Astronomy and
Astrophysics, 576, A107. http://doi.org/10.1051/0004-6361/201424088
- A dust model involving magnetic dipole emission from dust in total and polarized emission :
B. T., & Hensley, B. (2013). Magnetic Nanoparticles in the
Interstellar Medium: Emission Spectrum and Polarization. The
Astrophysical Journal, 765(2), 159.
- A recent dust model compatible with Planck data
Guillet, L. Fanciullo, L. Verstraete, F. Boulanger, A. P. Jones, M.-A.
Miville-Deschênes, N. Ysard, F. Levrier, M. Alves, Dust models
compatible with Planck intensity and polarization data in translucent
lines of sight, 2017, https://arxiv.org/abs/1710.04598