Phantom scalar field cosmologies constrained by early cosmic measurements

Abstract

In this work, we explore new constraints on phantom scalar field cosmologies with a scalar field employing early times catalogues related to CMB measurements, along with the local standard observables, like Supernovae Type Ia (SNIa), $H(z)$ measurements (Cosmic Clocks), and Baryon Acoustic Oscillations (BAO) baselines. In particular, we studied a tracker phantom field with hyperbolic polar coordinates that have been proposed in the literature. The main goal is to obtain precise cosmological constraints for $H_0$ and ${\sigma }_8$, in comparison to other constructions that present tension in early cosmological parameters. Our results show that phantom scalar field cosmologies have a reduced statistical tension on $H_0$ that it is less than 3$\sigma$ using model-independent CMB catalogues as SPT-3G+WMAP9 and ACTPol DR-4+WMAP9 baselines. This suggests these models using a different phantom potential might address the Hubble constant problem and reduce the systematics involved.

10 pages, 3 figures

References in corpus (22)

• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
• The Pantheon+ Analysis: Cosmological Constraints
• Conditions for the cosmological viability of f(R) dark energy models
• The Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters
• Planck evidence for a closed Universe and a possible crisis for cosmology
• Cosmology Intertwined II: The Hubble Constant Tension
• Teleparallel Gravity: From Theory to Cosmology
• Cosmology Intertwined III: $f{\sigma }_8$ and $S_8$
• Measurements of the E-Mode Polarization and Temperature-E-Mode Correlation of the CMB from SPT-3G 2018 Data
• Coupled oscillators as models of quintom dark energy
• Is Local $H_0$ At Odds With Dark Energy EFT?
• Cosmology Intertwined IV: The Age of the Universe and its Curvature
• The state of the dark energy equation of state circa 2023
• Generalized tracker quintessence models for dark energy
• Dynamical dark energy models in the light of Gravitational-Wave Transient Catalogues
• Constraining the dark-energy equation of state with cosmological data
• Quintessential Cosmological Tensions
• Constraints on Cosmological Parameters with a Sample of Type Ia Supernovae from JWST
• The Oscillatory Universe, phantom crossing and the Hubble tension
• Dynamical dark energy can amplify the expansion rate of the Universe
• Scaling solutions as Early Dark Energy resolutions to the Hubble tension

Cited by in corpus (1)

• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics