Galactic dust polarized emission at high latitudes and CMB polarization

Details Galactic dust polarized emission at high latitudes and CMB polarization Galactic dust polarized emission at high latitudes and CMB polarization

1998-03-13

arxiv.org/abs/astro-ph/9803158v1

Astronomy and Astrophysics

Astrophysics

Latex document, 4 pages, 2 figures, to appear in "Fundamental parameters in Cosmology", Rencontres de Moriond, 1998

Scientific paper

We estimate the dust polarized emission in our galaxy at high galactic latitudes, which is the dominant foreground for measuring CMB polarization using the high frequency instrument (HFI) aboard Planck surveyor. We compare it with the level of CMB polarization and conclude that, for angular scales $\le 1^{\circ}$, the scalar-induced CMB polarization and temperature-polarization cross-correlation are much larger than the foreground level at $\nu \simeq 100 GHz$. The tensor-induced signals seem to be at best comparable to the foreground level.}

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