volume 12, issue S333, P288-291 2017
DOI: 10.1017/s1743921317010900
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L. C. Olivari, M. Remazeilles, C. Dickinson

Abstract: AbstractIntensity mapping (IM) is a new observational technique to survey the large-scale structure of matter using spectral emission lines. IM observations are contaminated by instrumental noise and astrophysical foregrounds. The foregrounds are at least three orders of magnitude larger than the searched signals. In this work, we apply the Generalized Needlet Internal Linear Combination (GNILC) method to subtract radio foregrounds and to recover the cosmological HI and CO signals within the IM context. For th…

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