Publications associated with Particle Theory

Footprints of Loop i on Cosmic Microwave Background maps

Journal of Cosmology and Astroparticle Physics 2016 (2016)

SV Hausegger, H Liu, P Mertsch, S Sarkar

© 2016 IOP Publishing Ltd and Sissa Medialab srl .Cosmology has made enormous progress through studies of the cosmic microwave background, however the subtle signals being now sought such as B-mode polarisation due to primordial gravitational waves are increasingly hard to disentangle from residual Galactic foregrounds in the derived CMB maps. We revisit our finding that on large angular scales there are traces of the nearby old supernova remnant Loop I in the WMAP 9-year map of the CMB and confirm this with the new SMICA map from the Planck satellite.

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