The Impact of the Hubble Tension on the Evidence for Dynamical Dark Energy
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916682432249856 |
|---|---|
| author | Pang, Ye-Huang Zhang, Xue Huang, Qing-Guo |
| author_facet | Pang, Ye-Huang Zhang, Xue Huang, Qing-Guo |
| contents | Recent findings from the Dark Energy Spectroscopic Instrument (DESI) Data Release 2 (DR2) favor a dynamical dark energy characterized by a phantom crossing feature. This result also implies a lower value of the Hubble constant, thereby intensifying the so-called Hubble tension. To alleviate the Hubble tension, we consider the early dark energy and explore its impact on the evidence for dynamical dark energy including the Hubble constant calibrated by the SH0ES collaboration. We find that incorporating SH0ES prior with CMB, DESI DR2 BAO and Pantheon Plus/Union3/DESY5 data reduces the preference to dynamical dark energy to $1.5σ/1.4σ/2.4σ$ level, respectively. Our results suggest a potential tension between the Hubble constant $H_0$ of the SH0ES measurement and the phantom-to-quintessence transition in dark energy favored by DESI DR2 BAO data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_21600 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The Impact of the Hubble Tension on the Evidence for Dynamical Dark Energy Pang, Ye-Huang Zhang, Xue Huang, Qing-Guo Cosmology and Nongalactic Astrophysics Recent findings from the Dark Energy Spectroscopic Instrument (DESI) Data Release 2 (DR2) favor a dynamical dark energy characterized by a phantom crossing feature. This result also implies a lower value of the Hubble constant, thereby intensifying the so-called Hubble tension. To alleviate the Hubble tension, we consider the early dark energy and explore its impact on the evidence for dynamical dark energy including the Hubble constant calibrated by the SH0ES collaboration. We find that incorporating SH0ES prior with CMB, DESI DR2 BAO and Pantheon Plus/Union3/DESY5 data reduces the preference to dynamical dark energy to $1.5σ/1.4σ/2.4σ$ level, respectively. Our results suggest a potential tension between the Hubble constant $H_0$ of the SH0ES measurement and the phantom-to-quintessence transition in dark energy favored by DESI DR2 BAO data. |
| title | The Impact of the Hubble Tension on the Evidence for Dynamical Dark Energy |
| topic | Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2503.21600 |