Journal
PHYSICAL REVIEW LETTERS
Volume 112, Issue 17, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.171301
Keywords
-
Categories
Funding
- University of the Basque Country UPV/EHU [EHUA 12/11]
- Basque Government [IT-559-10]
- Spanish Ministry [FPA2012-34456]
- Consolider-Ingenio Programme CPAN [CSD2007-00042]
- EPI [CSD2010-00064]
- Swiss NSF
- Science and Technology Facilities Council [ST/J000477/1, ST/K006606/1]
- STFC [ST/G000573/1, ST/J005673/1, ST/K006606/1, ST/L000504/1, ST/K00333X/1, ST/J000477/1, ST/H008586/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J005673/1, ST/G000573/1, ST/K006606/1, ST/H008586/1, ST/K00333X/1, ST/L000504/1, ST/J000477/1] Funding Source: researchfish
Ask authors/readers for more resources
We show that the B-mode polarization signal detected at low multipoles by BICEP2 cannot be entirely due to topological defects. This would be incompatible with the high-multipole B-mode polarization data and also with existing temperature anisotropy data. Adding cosmic strings to a model with tensors, we find that B modes on their own provide a comparable limit on the defects to that already coming from Planck satellite temperature data. We note that strings at this limit give a modest improvement to the best fit of the B-mode data, at a somewhat lower tensor-to-scalar ratio of r similar or equal to 0.15.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available