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Multipoles of the relativistic galaxy bispectrum
(IOP Publishing Ltd, 2020)
Above the equality scale the galaxy bispectrum will be a key probe for measuring
primordial non-Gaussianity which can help differentiate between different inflationary models
and other theories of the early universe. On ...
The Hubble constant tension with next-generation galaxy surveys
(IOP Publishing Ltd, 2020)
The rate at which the universe is expanding today is a fundamental parameter in
cosmology which governs our understanding of structure formation and dark energy. However, current measurements of the Hubble constant, H0, ...
Probing beyond-Horndeski gravity on ultra-large scales
(2020)
The beyond-Horndeski gravity has recently been reformulated in the dark energy
paradigm — which has been dubbed, Unified Dark Energy (UDE). The evolution equations
for the given UDE appear to correspond to a non-conservative ...
Null tests of the concordance model in the era of Euclid and the SKA
(Elsevier, 2021)
We perform null tests of the concordance model, using H (z) measurements that mimic next-generation surveys such as Euclid and the SKA. To this end, we deploy a non-parametric method, so that we make minimal assumptions ...
Probing beyond-Horndeski gravity on ultra-large scales
(IOP Publishing Ltd, 2020)
The beyond-Horndeski gravity has recently been reformulated in the dark energy
paradigm — which has been dubbed, Unified Dark Energy (UDE). The evolution equations
for the given UDE appear to correspond to a non-conservative ...
Wide-angle effects in multi-tracer power spectra with Doppler corrections
(IOP Publishing, 2023)
. We examine the computation of wide-angle corrections to the galaxy power spectrum including redshift-space distortions and relativistic Doppler corrections, and also including multiple tracers with differing clustering, ...