Cosmic Growth and Expansion Conjoined

Abstract

Cosmological measurements of both the expansion history and growth history have matured, and the two together provide an important test of general relativity. We consider their joint evolutionary track, showing that this has advantages in distinguishing cosmologies relative to considering them individually or at isolated redshifts. In particular, the joint comparison relaxes the shape degeneracy that makes $f{\sigma }_8(z)$ curves difficult to separate from the overall growth amplitude. The conjoined method further helps visualization of which combinations of redshift ranges provide the clearest discrimination. We examine standard dark energy cosmologies, modified gravity, and "stuttering" growth, each showing distinct signatures.

arXiv comment6 pages, 6 figures

References in corpus (13)

• The WiggleZ Dark Energy Survey: Joint measurements of the expansion and growth history at z < 1
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Testing gravity with redshift-space distortions using the power spectrum multipoles
• The WiggleZ Dark Energy Survey: Final data release and cosmological results
• DESI and other dark energy experiments in the era of neutrino mass measurements
• The Clustering of Galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS): measuring growth rate and geometry with anisotropic clustering
• Exponential Gravity
• The 6dF Galaxy Velocity Survey: Cosmological constraints from the velocity power spectrum
• The WiggleZ Dark Energy Survey: measuring the cosmic growth rate with the two-point galaxy correlation function
• Consistent Modified Gravity Analysis of Anisotropic Galaxy Clustering Using BOSS DR11
• Dark Before Light: Testing the Cosmic Expansion History through the Cosmic Microwave Background
• Cosmological Constraints from the Anisotropic Clustering Analysis using BOSS DR9
• Uniqueness of Current Cosmic Acceleration
• Cosmological Tests using Redshift Space Clustering in BOSS DR11

Cited by in corpus (28)

• Cosmology Intertwined III: $f{\sigma }_8$ and $S_8$
• $H_0$ tension as a hint for a transition in gravitational theory
• No Slip Gravity
• Conjoined constraints on modified gravity from the expansion history and cosmic growth
• Testing the effect of $H_0$ on $f{\sigma }_8$ tension using a Gaussian Process method
• The impact of galaxy formation on satellite kinematics and redshift-space distortions
• Probing the imprints of generalized interacting dark energy on the growth of perturbations
• Cosmological constraints from a joint analysis of cosmic growth and expansion
• Model-independent cosmological constraints from growth and expansion
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• $H_0$ Ex Machina: Vacuum Metamorphosis and Beyond $H_0$
• SDSS-IV MaNGA: The Spectroscopic Discovery of Strongly Lensed Galaxies
• Observational constraints on Starobinsky $f(R)$ cosmology from cosmic expansion and structure growth data
• C${}^3$-Cluster Clustering Cosmology I. New constraints on the cosmic growth rate at z~0.3 from redshift-space clustering anisotropies
• Scalar field dark matter and dark energy: a hybrid model for the dark sector
• Machine Learning and cosmographic reconstructions of quintessence and the Swampland conjectures
• Limited Modified Gravity
• Neutrino mass tension or suppressed growth rate of matter perturbations?
• No Run Gravity
• Revealing the non-adiabatic nature of dark energy perturbations from galaxy clustering data
• Geometric and growth rate tests of General Relativity with recovered linear cosmological perturbations
• Cosmological joint analysis with cosmic growth and expansion rate
• Unveiling the Universe with Emerging Cosmological Probes
• Comparing Dark Energy models with Hubble versus Growth Rate data
• New measures to test modified gravity cosmologies
• Novel Cosmological Joint Constraints in Multidimensional Observables Space with Redshift-free Inferences
• Matter growth in extended $\Lambda$CDM cosmology
• FLRW Kinematic-Induced Measurement of the Hubble Constant from Cosmic Chronometer and Redshift Drift Observations