Is the observable Universe consistent with the cosmological principle?
The cosmological principle (CP)—the notion that the Universe is spatially isotropic and
homogeneous on large scales—underlies a century of progress in cosmology. It is …
homogeneous on large scales—underlies a century of progress in cosmology. It is …
Hubble parameter and Baryon Acoustic Oscillation measurement constraints on the Hubble constant, the deviation from the spatially flat ΛCDM model, the …
We compile a complete collection of reliable Hubble parameter H (z) data to redshift z≤
2.36 and use them with the Gaussian Process method to determine continuous H (z) …
2.36 and use them with the Gaussian Process method to determine continuous H (z) …
Hubble parameter measurement constraints on the redshift of the deceleration–acceleration transition, dynamical dark energy, and space curvature
O Farooq, FR Madiyar, S Crandall… - The Astrophysical …, 2017 - iopscience.iop.org
We compile an updated list of 38 measurements of the Hubble parameter H (z) between
redshifts 0.07≤ z≤ 2.36 and use them to place constraints on model parameters of constant …
redshifts 0.07≤ z≤ 2.36 and use them to place constraints on model parameters of constant …
Non-parametric spatial curvature inference using late-Universe cosmological probes
Inferring high-fidelity constraints on the spatial curvature parameter, ΩK, under as few
assumptions as possible, is of fundamental importance in cosmology. We propose a method …
assumptions as possible, is of fundamental importance in cosmology. We propose a method …
Cosmic chronometers to calibrate the ladders and measure the curvature of the Universe. A model-independent study
A Favale, A Gómez-Valent… - Monthly Notices of the …, 2023 - academic.oup.com
We use the state-of-the-art data on cosmic chronometers (CCH) and the Pantheon+
compilation of supernovae of Type Ia (SNIa) to test the constancy of the SNIa absolute …
compilation of supernovae of Type Ia (SNIa) to test the constancy of the SNIa absolute …
The galaxy power spectrum take on spatial curvature and cosmic concordance
S Vagnozzi, E Di Valentino, S Gariazzo… - Physics of the Dark …, 2021 - Elsevier
The concordance of the Λ CDM cosmological model in light of current observations has
been the subject of an intense debate in recent months. The 2018 Planck Cosmic …
been the subject of an intense debate in recent months. The 2018 Planck Cosmic …
Determining the range of validity of quasar X-ray and UV flux measurements for constraining cosmological model parameters
We use six different cosmological models to study the recently released compilation of X-ray
and UV flux measurements of 2038 quasars (QSOs) which span the redshift range 0.009≤ …
and UV flux measurements of 2038 quasars (QSOs) which span the redshift range 0.009≤ …
The Cardassian expansion revisited: constraints from updated Hubble parameter measurements and type Ia supernova data
Motivated by an updated compilation of observational Hubble data (OHD) that consist of 51
points in the redshift range of 0.07< z< 2.36, we study an interesting model known as …
points in the redshift range of 0.07< z< 2.36, we study an interesting model known as …
Baryon acoustic oscillation, Hubble parameter, and angular size measurement constraints on the Hubble constant, dark energy dynamics, and spatial curvature
In this paper, we use all available baryon acoustic oscillation, Hubble parameter, and
quasar angular size data to constrain six dark energy cosmological models, both spatially …
quasar angular size data to constrain six dark energy cosmological models, both spatially …
Using quasar X-ray and UV flux measurements to constrain cosmological model parameters
Risaliti and Lusso have compiled X-ray and UV flux measurements of 1598 quasars (QSOs)
in the redshift range 0.036≤ z≤ 5.1003, part of which, z∼ 2.4− 5.1, is largely …
in the redshift range 0.036≤ z≤ 5.1003, part of which, z∼ 2.4− 5.1, is largely …