Version 1
: Received: 28 March 2024 / Approved: 29 March 2024 / Online: 29 March 2024 (08:35:23 CET)
How to cite:
Nájera, J.A.; Escamilla-Rivera, C. Phantom Scalar Field Cosmologies Constrained by Early Cosmic Measurements. Preprints2024, 2024031816. https://doi.org/10.20944/preprints202403.1816.v1
Nájera, J.A.; Escamilla-Rivera, C. Phantom Scalar Field Cosmologies Constrained by Early Cosmic Measurements. Preprints 2024, 2024031816. https://doi.org/10.20944/preprints202403.1816.v1
Nájera, J.A.; Escamilla-Rivera, C. Phantom Scalar Field Cosmologies Constrained by Early Cosmic Measurements. Preprints2024, 2024031816. https://doi.org/10.20944/preprints202403.1816.v1
APA Style
Nájera, J.A., & Escamilla-Rivera, C. (2024). Phantom Scalar Field Cosmologies Constrained by Early Cosmic Measurements. Preprints. https://doi.org/10.20944/preprints202403.1816.v1
Chicago/Turabian Style
Nájera, J.A. and Celia Escamilla-Rivera. 2024 "Phantom Scalar Field Cosmologies Constrained by Early Cosmic Measurements" Preprints. https://doi.org/10.20944/preprints202403.1816.v1
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 H0 and σ8, 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 H0 that it is less than 3σ 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.
Keywords
dark energy; precision cosmology; cosmological parameters; Hubble tension
Subject
Physical Sciences, Astronomy and Astrophysics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
