Matches in SemOpenAlex for { <https://semopenalex.org/work/W2890760862> ?p ?o ?g. }
- W2890760862 abstract "We present cosmological constraints from Planck 2015 data for a universe that is kinetically dominated at very early times. We perform a Markov chain Monte Carlo analysis to estimate parameters and use nested sampling to determine the evidence for a model comparison of the single-field quadratic and Starobinsky inflationary models with the standard $Lambda$CDM cosmology. In particular we investigate how different amounts of inflation before and after horizon exit affect the primordial power spectrum and subsequently the power spectrum of the cosmic microwave background. We find that the model using kinetically dominated initial conditions for inflation performs similarly well in terms of Bayesian evidence as a model directly starting out in the slow-roll phase, despite having an additional parameter. The data show a slight preference for a cutoff at large scales in the primordial and temperature power spectra." @default.
- W2890760862 created "2018-09-27" @default.
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- W2890760862 date "2019-07-01" @default.
- W2890760862 modified "2023-09-23" @default.
- W2890760862 title "Constraining the kinetically dominated universe" @default.
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- W2890760862 doi "https://doi.org/10.1103/physrevd.100.023501" @default.
- W2890760862 hasPublicationYear "2019" @default.
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