Electromagnetic Waves in Cosmological Space-Time II. Luminosity Distance
arXiv:2502.11634 · doi:10.3390/universe11020050
Abstract
In this article, we continue our investigation on how the electromagnetic waves propagate in the Friedman-Lemaitre-Robertson-Walker spacetime. Unlike the standard approach, which relies on null geodesics and geometric optics approximation, we derive explicit solutions for electromagnetic waves in expanding spacetime and examine their implications for cosmological observations. In particular, our analysis reveals potential modifications to the standard luminosity distance formula. Its effect on other cosmological parameters, e.g., the amount of cold dust matter in the Universe, is considered and estimated from Type Ia supernovae data. We see that this alternative model is able to fit the supernova data, but it gives a qualitatively different Universe without a cosmological constant but with stiff or ultra-stiff matter.
13 pages, final published version, this paper is a continuation of https://doi.org/10.3390/universe9060292
References in corpus (38)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
- Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
- Multi-messenger Observations of a Binary Neutron Star Merger
- Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
- The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
- Essentials of k-essence
- The Hubble Space Telescope Cluster Supernova Survey: V. Improving the Dark Energy Constraints Above z>1 and Building an Early-Type-Hosted Supernova Sample
- Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data
- BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
- The WiggleZ Dark Energy Survey: Joint measurements of the expansion and growth history at z < 1
- Brane-World Gravity
- PolyChord: nested sampling for cosmology
- A Hubble Diagram for Quasars
- Testing modified gravity at cosmological distances with LISA standard sirens
- Cosmology with a stiff matter era
- The gravitational-wave luminosity distance in modified gravity theories
- Emergent Universe with Exotic Matter
- Testing the general theory of relativity using gravitational wave propagation from dark standard sirens
- JWST early Universe observations and ΛCDM cosmology
- Light propagation in a homogeneous and anisotropic universe
- Distances in inhomogeneous quintessence cosmology
- Approximate angular diameter distance in a locally inhomogeneous universe with nonzero cosmological constant
- Birefringent light propagation on anisotropic cosmological backgrounds
- Angular Diameter Distances in Clumpy Friedmann Universes
- Electrodynamics and spacetime geometry I: Foundations
- Detecting Dark Energy Fluctuations with Gravitational Waves
- The observed number counts in luminosity distance space
- The ASAS-SN Bright Supernova Catalog -- V. 2018-2020
- A First Look at Cepheids in a SN Ia Host with JWST
- Neutrino Observations of LHAASO Sources: Present Constraints and Future Prospects
- The mirage of luminal modified gravitational-wave propagation
- Comparing the luminosity distance for gravitational waves and electromagnetic signals in a simple model of quadratic gravity
- Shadows of black holes at cosmological distances in the co-varying physical couplings framework
- The effect of universe inhomogeneities on cosmological distance measurements
- Electrodynamics and spacetime geometry: Astrophysical applications
- Propagation of gravitational waves in an expanding background in the presence of a point mass