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Minimally Modified Gravity Fitting Planck Data Better Than ΛCDM

Pookkillath, M. C.

Here we present cosmology of a class of Minimally Modified Gravity theory dubbed as $f(H)$ theory. After introducing a concrete model for the free function, we find that this cosmological model fits Planck data better than $Λ $CDM.

How We Can Account for Type Ia Supernova Environment in Cosmological Analysis

Pruzhinskaya, M. V.; Pauna, N.; Novinskaya, A. K. +1 more

Among the other types of supernovae, Type Ia Supernovae (SNe Ia) have less luminosity dispersion at maximum light and show higher optical luminosities. These properties allow to use them as cosmological distance indicators that led to the discovery of the accelerating expansion of the Universe. However, even after the luminosity correction for str…