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Fast Radio Bursts (FRBs) have emerged as a powerful tool for cosmological studies, particularly through the dispersion measure-redshift ($\mathrm{DM}-z$) relation. This work proposes a novel calibration method for FRBs using the…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-07 Ran Gao , He Gao , Zhengxiang Li , Yuan-Pei Yang

Two of the most pressing challenges in cosmology are the persistent discrepancy in measurements of the Hubble constant, referred to as the Hubble tension, and the deficit of baryons in the local Universe, known as the missing baryon…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-01 Peng-Ju Wu , Bo-Yang Zhang , Ji-Guo Zhang , Guo-Hong Du , Shang-Jie Jin , Xin Zhang

Fast Radio Bursts (FRBs) are a unique probe of the cosmos, owing to dispersion caused by free electrons in the intergalactic medium (IGM). Two of the main quantities of interest are degenerate: the density of matter…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-21 Joscha N. Jahns-Schindler , Laura G. Spitler

In this study, we use late-time probes, such as well-localized fast radio bursts (FRBs), baryon acoustic oscillations (BAO), supernovae (SNe), and cosmic chronometers (CC) to constrain cosmological parameters through a model-independent…

The Hubble constant ${H}_0$ is a crucial parameter in cosmology. However, different cosmic observations have resulted in varying posterior results for ${H}_0$, leading to what is known as the ${H}_0$ tension. In order to address this issue,…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-18 Jiaze Gao , Zhihuan Zhou , Minghui Du , Rui Zou , Jianping Hu , Lixin Xu

The dispersion measure-redshift relation of fast radio bursts (FRBs) provides a valuable cosmological probe for constraining the Hubble constant, offering an independent measurement that could help resolve the ongoing Hubble tension. In…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-28 Chenyuan Xu , Yi Feng , Jiaying Xu

The cosmic baryon density fraction ($\Omega_{\rm b}$) is intrinsically correlated with the Hubble constant ($H_0$) through the critical density of the Universe. In the context of the decade-long $H_0$ tension, the significant discrepancy…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-13 Ji-Guo Zhang , Ji-Yu Song , Wan-Peng Sun , Ze-Wei Zhao , Jing-Fei Zhang , Xin Zhang

Fast radio bursts (FRBs) are among the most mysterious astronomical transients. Due to their short durations and cosmological distances, their dispersion measure (DM) - redshift ($z$) relation is useful for constraining cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-07 Jiaming Zhuge , Marios Kalomenopoulos , Bing Zhang

The Hubble constant ($H_0$) is one of the most important parameters in the standard $\rm \Lambda CDM$ model. The measurements given by the main two methods show a gap larger than $4\sigma$, which is known as Hubble tension. Fast radio…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-18 D. H. Gao , Q. Wu , J. P. Hu , S. X. Yi , X. Zhou , F. Y. Wang , Z. G. Dai

The $\Lambda$CDM model successfully explains the majority of cosmological observations. However, the $\Lambda$CDM model is challenged by Hubble tension, a remarkable difference of Hubble constant $H_0$ between measurements from local probe…

Cosmology and Nongalactic Astrophysics · Physics 2022-04-18 Q. Wu , G. Q. Zhang , F. Y. Wang

We present constraints on the Hubble constant ($H_0$) derived from the observed dispersion measure (DM) distribution of unlocalized fast radio bursts (FRBs). While localized FRBs with redshift measurements have been used to investigate the…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-07 Yang Liu , Jun-Jie Wei , Puxun Wu , Xue-Feng Wu

In this study, we use a sample of 130 well-localized fast radio bursts (FRBs) to constrain the physical baryon density $\Omega_{\rm b}h^2$, and the astrophysical contribution from host galaxies. The cosmological dependence entering the…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-05 Lázaro L. Sales , Klecio E. L. de Farias , Amilcar R. Queiroz , Rafael A. Batista , Bruno W. Ribeiro , Raiff H. Santos

One of the most challenging problems in cosmology is the Hubble tension, a discrepancy in the predicted expansion rate of the Universe. We leverage the sensitivity of the Dispersion Measure (DM) from Fast Radio Bursts (FRBs) with the Hubble…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-13 Eduard Fernando Piratova-Moreno , Luz Ángela García , Carlos A. Benavides-Gallego , Carolina Cabrera

We present a forecast of the cosmological parameter estimation using fast radio bursts (FRBs) from the upcoming Square Kilometre Array (SKA), focusing on the issues of dark energy, the Hubble constant, and baryon density. We simulate $10^5$…

Cosmology and Nongalactic Astrophysics · Physics 2023-11-21 Ji-Guo Zhang , Ze-Wei Zhao , Yichao Li , Jing-Fei Zhang , Di Li , Xin Zhang

Measuring the Hubble constant (H$_0$) is one of the most important missions in astronomy. Nevertheless, recent studies exhibit differences between the employed methods. Fast radio bursts (FRBs) are coherent radio transients with large…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-03 Tsung-Ching Yang , Tetsuya Hashimoto , Tzu-Yin Hsu , Tomotsugu Goto , Chih-Teng Ling , Simon C. -C. Ho , Amos Y. -A. Chen , Ece Kilerci

We constrain the Hubble constant H$_0$ using Fast Radio Burst (FRB) observations from the Australian Square Kilometre Array Pathfinder (ASKAP) and Murriyang (Parkes) radio telescopes. We use the redshift-dispersion measure (`Macquart')…

A major issue in contemporary cosmology is the persistent discrepancy, known as the Hubble tension, between the Hubble constant ($H_0$) estimates from local measurements and those inferred from early-Universe observations under the standard…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-29 Surajit Kalita , Akhil Uniyal , Tomasz Bulik , Yosuke Mizuno

Fast Radio Bursts (FRBs) have emerged as powerful cosmological probes in recent years offering valuable insights into cosmic expansion. These predominantly extragalactic transients encode information on the expansion of the Universe through…

Cosmology and Nongalactic Astrophysics · Physics 2025-01-09 Jéferson A. S. Fortunato , David J. Bacon , Wiliam S. Hipólito-Ricaldi , David Wands

Fast radio bursts (FRBs) are very short and bright transients visible over extragalactic distances. The radio pulse undergoes dispersion caused by free electrons along the line of sight, most of which are associated with the large-scale…

Cosmology and Nongalactic Astrophysics · Physics 2022-01-19 Steffen Hagstotz , Robert Reischke , Robert Lilow

Fast Radio Bursts (FRBs) are millisecond-duration pulses occurring at cosmological distances that have emerged as prominent cosmological probes due to their dispersion measure (DM) evolution with redshift. In this work, we use cosmography,…

Cosmology and Nongalactic Astrophysics · Physics 2024-02-28 Jéferson A. S. Fortunato , Wiliam S. Hipólito-Ricaldi , Marcelo V. dos Santos
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