The H 0 Tension in Non-flat QCDM Cosmology
Abstract
The recent local measurement of the Hubble constant leads to a more than 3σ tension with Planck + ΛCDM. In this article we study the H 0 tension in non-flat QCDM cosmology, where Q stands for a minimally coupled and slowly or moderately rolling quintessence field ϕ with a smooth potential V(φ ), and CDM refers to cold dark matter. By generalizing the QCDM one-parameter and three-parameter parameterizations in Huang et al. to a non-flat universe and using the latest cosmological data, we find that the H 0 tension remains above the 3.2σ level for this class of model.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- November 2018
- DOI:
- 10.3847/1538-4357/aae523
- arXiv:
- arXiv:1803.07320
- Bibcode:
- 2018ApJ...868...20M
- Keywords:
-
- cosmic background radiation;
- cosmological parameters;
- dark energy;
- large-scale structure of universe;
- Astrophysics - Cosmology and Nongalactic Astrophysics;
- General Relativity and Quantum Cosmology;
- High Energy Physics - Phenomenology;
- 83F05;
- J.2
- E-Print:
- 8 pages, 6 figures
