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Toward an understanding of foreground emission in the BICEP2 region
Journal of Cosmology and Astroparticle Physics
BICEP2 has reported the detection of a degree-scale B-mode polarization pattern in the Cosmic Microwave Background (CMB) and has interpreted the measurement as evidence for primordial gravitational waves. Motivated by the profound importance of the discovery of gravitational waves from the early Universe, we examine to what extent a combination of Galactic foregrounds and lensed E-modes could be responsible for the signal. We reanalyze the BICEP2 results and show that the 100x150 GHz anddoi:10.1088/1475-7516/2014/08/039 fatcat:frbyhkf7mnh7xezfv34fpdczwe