Late-time cosmological constraints on three holographic dark energy models with DESI DR2 BAO and Type Ia supernovae
Abstract
We constrain three holographic-inspired dark energy models, namely holographic dark energy (HDE), agegraphic dark energy (ADE), and Ricci dark energy (RDE), using late-time observations from cosmic chronometers, Type Ia supernovae (SNe Ia), DESI DR2 baryon acoustic oscillations (BAO), and {redshift-space distortion (RSD) growth measurements}. Five data combinations are considered: H(z)+Pantheon+, H(z)+DESI DR2+Pantheon+, H(z)+DESI DR2+DES-Dovekie, H(z)+DESI DR2+DESY5, and {H(z)+DESI DR2+DES-Dovekie+RSD}. We perform Bayesian Markov chain Monte Carlo parameter estimation and compare the models with AIC and BIC. In the BAO-included combinations, HDE gives H0≃67.3--68.0 km s−1 Mpc−1, Ωm0≃0.270--$0.272$, and c≃1, indicating an expansion history close to the de Sitter boundary rather than a robust phantom regime. ADE yields a stable agegraphic parameter n≃2.78--$2.81$, while RDE gives γ≃0.53--$0.55$ and persistently favors a low matter density, Ωm0≃0.215--$0.219$. {Treating rd as a free parameter reveals a strong negative correlation between H0 and rd, and the RSD-included combination provides a growth-level consistency check through fσ8(z) without constituting a full perturbative stability analysis.} None of the three models significantly alleviates the Hubble tension. Overall, HDE shows the most balanced phenomenological behavior among the three models, although current late-time data do not decisively prefer it over ΛCDM.
Versions
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BibTeX
@misc{huang2026latetime,
title = {{Late-time cosmological constraints on three holographic dark energy models with DESI DR2 BAO and Type Ia supernovae}},
author = {Jiayuan Huang and Tonghua Liu and Chenggang Shao},
howpublished = {arXiv},
year = {2026},
month = jul,
doi = {10.48550/arxiv.2607.09732},
eprint = {2607.09732},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.09732},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - Late-time cosmological constraints on three holographic dark energy models with DESI DR2 BAO and Type Ia supernovae
AU - Jiayuan Huang
AU - Tonghua Liu
AU - Chenggang Shao
PY - 2026
DA - 2026/07/02
PB - arXiv
DO - 10.48550/arxiv.2607.09732
UR - https://arxiv.org/abs/2607.09732
AB - We constrain three holographic-inspired dark energy models, namely holographic dark energy (HDE), agegraphic dark energy (ADE), and Ricci dark energy (RDE), using late-time observations from cosmic chronometers, Type Ia supernovae (SNe Ia), DESI DR2 baryon acoustic oscillations (BAO), and {redshift-space distortion (RSD) growth measurements}. Five data combinations are considered: H(z)+Pantheon+, H(z)+DESI DR2+Pantheon+, H(z)+DESI DR2+DES-Dovekie, H(z)+DESI DR2+DESY5, and {H(z)+DESI DR2+DES-Dovekie+RSD}. We perform Bayesian Markov chain Monte Carlo parameter estimation and compare the models with AIC and BIC. In the BAO-included combinations, HDE gives H_0≃67.3--68.0 km s^−1 Mpc^−1, Ω_m0≃0.270--$0.272$, and c≃1, indicating an expansion history close to the de Sitter boundary rather than a robust phantom regime. ADE yields a stable agegraphic parameter n≃2.78--$2.81$, while RDE gives γ≃0.53--$0.55$ and persistently favors a low matter density, Ω_m0≃0.215--$0.219$. {Treating r_d as a free parameter reveals a strong negative correlation between H_0 and r_d, and the RSD-included combination provides a growth-level consistency check through fσ_8(z) without constituting a full perturbative stability analysis.} None of the three models significantly alleviates the Hubble tension. Overall, HDE shows the most balanced phenomenological behavior among the three models, although current late-time data do not decisively prefer it over ΛCDM.
ER -