PhysRevD.74.127305.pdf (114.47 kB)
Intermediate inflation in light of the three-year WMAP observations
journal contribution
posted on 2023-06-07, 19:44 authored by John D Barrow, Andrew R Liddle, Cedric PahudThe three-year observations from the Wilkinson Microwave Anisotropy Probe have been hailed as giving the first clear indication of a spectral index ns<1. We point out that the data are equally well explained by retaining the assumption ns=1 and allowing the tensor-to-scalar ratio r to be nonzero. The combination ns=1 and r>0 is given (within the slow-roll approximation) by a version of the intermediate inflation model with expansion rate H(t)?t-1/3. We assess the status of this model in light of the WMAP3 data.
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Physical Review DISSN
1550-7998Publisher
American Physical SocietyExternal DOI
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12Volume
74Page range
127305Department affiliated with
- Physics and Astronomy Publications
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2012-02-06First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2016-11-10Usage metrics
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