Journal article

### Planck 2013 results. XXII. Constraints on inflation

Abstract:

We analyse the implications of the Planck data for cosmic inflation. The Planck nominal mission temperature anisotropy measurements, combined with the WMAP large-angle polarization, constrain the scalar spectral index to $n_s = 0.9603 \pm 0.0073$, ruling out exact scale invariance at over 5 $\sigma$. Planck establishes an upper bound on the tensor-to-scalar ratio of r < 0.11 (95% CL). The Planck data thus shrink the space of allowed standard inflationary models, preferring potentials with ...

### Access Document

Publisher copy:
10.1051/0004-6361/201321569

### Authors

Publisher:
EDP Sciences Publisher's website
Journal:
Astron. Astrophys.
Volume:
571
Pages:
A22
Publication date:
2013-03-20
DOI:
EISSN:
1432-0746
ISSN:
0004-6361
Source identifiers:
395185
Language:
English
Keywords:
Pubs id:
pubs:395185
UUID:
uuid:b940d335-9481-40d2-8e84-13f00907c388
Local pid:
pubs:395185
Deposit date:
2014-11-13