4.6 Article

Footprints of Loop I on Cosmic Microwave Background maps

Journal

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/1475-7516/2016/03/023

Keywords

CMBR experiments; supernova remnants

Funding

  1. National Natural Science Foundation of China [11033003]
  2. National Natural Science Foundation for Young Scientists of China [11203024]
  3. Youth Innovation Promotion Association, CAS
  4. DoE [DE-AC02-76SF00515]
  5. KIPAC Kavli Fellowship
  6. Science and Technology Facilities Council [ST/L000474/1, PP/C506205/1, ST/J000507/1] Funding Source: researchfish
  7. Villum Fonden [00010056] Funding Source: researchfish
  8. STFC [ST/J000507/1, PP/C506205/1, ST/L000474/1] Funding Source: UKRI

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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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