High latitude Galactic dust emission in the BOOMERanG maps

S. Masi; P. A. R. Ade; J. J Bock; A. Boscaleri; B. P. Crill; P. de Bernardis; M. Giacometti; E. Hivon; V. V. Hristov; A. E. Lange; P. D. Mauskopf; T. Montroy; C. B. Netterfield; E. Pascale; F. Piacentini; S. Prunet; J. Ruhl

doi:10.1086/320679

arXiv · astro-ph/0101539

High latitude Galactic dust emission in the BOOMERanG maps

S. Masi·P. A. R. Ade·J. J Bock·A. Boscaleri·B. P. Crill·P. de Bernardis·M. Giacometti·E. Hivon·V. V. Hristov·A. E. Lange·P. D. Mauskopf·T. Montroy·C. B. Netterfield·E. Pascale·F. Piacentini·S. Prunet·J. Ruhl

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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. .

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S. Masi, P. A. R. Ade, J. J Bock, A. Boscaleri, B. P. Crill, P. de Bernardis, M. Giacometti, E. Hivon, V. V. Hristov, A. E. Lange, P. D. Mauskopf, T. Montroy, C. B. Netterfield, E. Pascale, F. Piacentini, S. Prunet, J. Ruhl. 2001-01-30. High latitude Galactic dust emission in the BOOMERanG maps. https://doi.org/10.1086/320679

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