D. T. O'Dea, C. N. Clark, C. R. Contaldi, C. J. MacTavish
The upcoming generation of cosmic microwave background (CMB) experiments face
a major challenge in detecting the weak cosmic B-mode signature predicted as a
product of primordial gravitational waves. To achieve the required sensitivity
these experiments must have impressive control of systematic effects and
detailed understanding of the foreground emission that will influence the
signal. In this paper, we present templates of the intensity and polarisation
of emission from one of the main Galactic foregrounds, interstellar dust. These
are produced using a model which includes a 3D description of the Galactic
magnetic field, examining both large and small scales. We also include in the
model the details of the dust density, grain alignment and the intrinsic
polarisation of the emission from an individual grain. We present here Stokes
parameter template maps at 150GHz and provide an on-line repository
(http://www.imperial.ac.uk/people/c.contaldi/fgpol) for these and additional
maps at frequencies that will be targeted by upcoming experiments such as EBEX,
Spider and SPTpol.
View original:
http://arxiv.org/abs/1107.4612
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