High latitude Galactic dust emission in the BOOMERanG maps
Abstract
We present mm-wave observations obtained by the BOOMERanG experiment of Galactic emission at intermediate and high (b < -20 deg) Galactic latitudes. We find that this emission is well correlated with extrapolation of the IRAS-DIRBE maps, and is spectrally consistent with thermal emission from interstellar dust (ISD). The ISD brightness in the 410 GHz map has an angular power spectrum c_l = A l^{-beta} with 2 < beta < 3. At 150 GHz and at multipoles ell \sim 200 the angular power spectrum of the IRAS-correlated dust signal is estimated to be l(l+1)c_l/2 pi = (3.7 \pm 2.9) uK^2. This is negligible with respect to the CMB signal measured by the same experiment l(l+1)c_l/2 pi = (4700 \pm 540) uK^2. For the uncorrelated dust signal we set an upper limit to the contribution to the CMB power at 150GHz and l \sim 200 of l(l+1)c_l/2 pi < 3 uK^2 at 95% C.L. .
Cite
@article{arxiv.astro-ph/0101539,
title = {High latitude Galactic dust emission in the BOOMERanG maps},
author = {S. Masi and P. A. R. Ade and J. J Bock and A. Boscaleri and B. P. Crill and P. de Bernardis and M. Giacometti and E. Hivon and V. V. Hristov and A. E. Lange and P. D. Mauskopf and T. Montroy and C. B. Netterfield and E. Pascale and F. Piacentini and S. Prunet and J. Ruhl},
journal= {arXiv preprint arXiv:astro-ph/0101539},
year = {2009}
}