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Footprints of Loop I on Cosmic Microwave Background Maps

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 نشر من قبل Subir Sarkar
 تاريخ النشر 2015
  مجال البحث فيزياء
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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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