Testing Gravity Using Type Ia Supernovae Discovered by Next-Generation Wide-Field Imaging Surveys

Abstract

In the upcoming decade cadenced wide-field imaging surveys will increase the number of identified $z<0.3$ Type~Ia supernovae (SNe~Ia) from the hundreds to the hundreds of thousands. The increase in the number density and solid-angle coverage of SNe~Ia, in parallel with improvements in the standardization of their absolute magnitudes, now make them competitive probes of the growth of structure and hence of gravity. The peculiar velocity power spectrum is sensitive to the growth index $\gamma$, which captures the effect of gravity on the linear growth of structure through the relation $f={\Omega }_M^{\gamma }$. We present the first projections for the precision in $\gamma$ for a range of realistic SN peculiar-velocity survey scenarios. In the next decade the peculiar velocities of SNe~Ia in the local $z<0.3$ Universe will provide a measure of $\gamma$ to $\pm 0.01$ precision that can definitively distinguish between General Relativity and leading models of alternative gravity.

Decadal Survey White Paper submission

References in corpus (13)

• The Zwicky Transient Facility: System Overview, Performance, and First Results
• ATLAS: A High-Cadence All-Sky Survey System
• Correlated Fluctuations in Luminosity Distance and the (Surprising) Importance of Peculiar Motion in Supernova Surveys
• Growth of Cosmic Structure: Probing Dark Energy Beyond Expansion
• The effect of peculiar velocities on supernova cosmology
• The 6dF Galaxy Velocity Survey: Cosmological constraints from the velocity power spectrum
• Cosmological Constraints from Type Ia Supernovae Peculiar Velocity Measurements
• Cosmological Forecasts for Combined and Next Generation Peculiar Velocity Surveys
• Improving constraints on the growth rate of structure by modelling the density-velocity cross-correlation in the 6dF Galaxy Survey
• No evidence for bulk velocity from type Ia supernovae
• The Three Faces of Omega_m: Testing Gravity with Low and High Redshift SN Ia Surveys
• Galaxy Peculiar Velocities From Large-Scale Supernova Surveys as a Dark Energy Probe
• Testing Dark Matter Clustering with Redshift Space Distortions

Cited by in corpus (11)

• The Pantheon+ Analysis: Evaluating Peculiar Velocity Corrections in Cosmological Analyses with Nearby Type Ia Supernovae
• The Redshift Space Momentum Power Spectrum II: measuring the growth rate from the combined 2MTF and 6dFGSv surveys
• The Redshift-Space Momentum Power Spectrum I: Optimal Estimation From Peculiar Velocity Surveys
• Probing gravity and growth of structure with gravitational waves and galaxies' peculiar velocity
• Complementarity of Peculiar Velocity Surveys and Redshift Space Distortions for Testing Gravity
• Joint velocity and density reconstruction of the Universe with nonlinear differentiable forward modeling
• Wide angle effects for peculiar velocities
• Exploring the Redshift-Space Peculiar Velocity Field and its Power Spectrum
• On the kinetic Sunyaev-Zel'dovich effect as an observational probe for halo spin bias
• Cosmology Requirements on Supernova Photometric Redshift Systematics for Rubin LSST and Roman Space Telescope
• Constraining Scale Dependent Growth with Redshift Surveys