We constrain six possible extensions to the Λ cold dark matter (CDM) model using
measurements from the Dark Energy Survey's first three years of observations, alone and in …

We study the performance of three pairs of tilted, and a pair of untilted, Λ cold dark matter (Λ
CDM) cosmological models, with three of these four pairs allowing for nonflat spatial …

We construct observational Hubble H (z) and angular diameter distance DA (z) mock data
collected in redshift bins with baseline Planck Λ CDM input values, before fitting the Λ CDM …

Many cosmological models assume or imply that the total size of the universe is very large,
perhaps even infinite. Here we argue instead that the universe might be comparatively …

We analyse the clustering of matter on large scales in an extension of the concordance
model that allows for spatial curvature. We develop a consistent approach to curvature and …

We study the possibility of using the LiteBIRD satellite B-mode survey to constrain models of
inflation producing specific features in CMB angular power spectra. We explore a particular …

The Universe is neither homogeneous nor isotropic, but it is close enough that we can
reasonably approximate it as such on suitably large scales. The inflationary-Λ-Cold Dark …

We study the possibility of using the $ LiteBIRD $ satellite $ B $-mode survey to constrain
models of inflation producing specific features in CMB angular power spectra. We explore a …

We construct nonlinear inflaton potential-energy densities that describe not necessarily very
slowly rolling closed and open inflation models, and compute tilted primordial spatial …

We extend the work of Contaldi et al.[J. Cosmol. Astropart. Phys. 07 (2003) 002. JCAPBP
1475-7516 10.1088/1475-7516/2003/07/002] and derive analytical approximations for …