Probing Cosmology with 92 Localized Fast Radio Bursts and DESI BAO
Recent baryon acoustic oscillation (BAO) measurements from the Dark Energy Spectroscopic Instrument (DESI) collaboration, combined with the cosmic microwave background (CMB) and type Ia supernovae observations, suggest a preference for dynamical dark energy (DDE) with w _0 > −1 and w _a < 0....
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IOP Publishing
2025-01-01
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| Online Access: | https://doi.org/10.3847/1538-4357/adade8 |
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| author | Yi-Ying Wang Shi-Jie Gao Yi-Zhong Fan |
| author_facet | Yi-Ying Wang Shi-Jie Gao Yi-Zhong Fan |
| author_sort | Yi-Ying Wang |
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| description | Recent baryon acoustic oscillation (BAO) measurements from the Dark Energy Spectroscopic Instrument (DESI) collaboration, combined with the cosmic microwave background (CMB) and type Ia supernovae observations, suggest a preference for dynamical dark energy (DDE) with w _0 > −1 and w _a < 0. Given the cosmological origin of fast radio bursts (FRBs), the combination of their dispersion measures (DMs) and host galaxy redshifts makes localized FRBs a valuable tool for probing cosmology. Using an updated sample of 92 localized FRBs, along with DESI BAO, PlantheonPlus, and CMB data, we constrain the dark energy (DE) equation of state (EoS) under the Chevallier–Polarski–Linder parameterization. We find that even without incorporating CMB data, DDE remains preferred with ${w}_{0}=-0.85{5}_{-0.084}^{+0.084}$ and ${w}_{a}=-1.17{4}_{-0.491}^{+0.462}$ at a confidence level of ∼2.5 σ . A joint analysis constrains these to be ${w}_{0}=-0.78{4}_{-0.064}^{+0.064}$ and ${w}_{a}=-0.87{2}_{-0.278}^{+0.269}$ , showing a discrepancy with ΛCDM at a ∼3.1 σ level. Furthermore, using localized FRBs alone, we estimate the Hubble constant H _0 to be $69.0{4}_{-2.07}^{+2.30}$ and $75.6{1}_{-2.07}^{+2.23}\,{\rm{km}}\,{{\rm{s}}}^{-1}\,{{\rm{Mpc}}}^{-1}$ , assuming the Galactic electron density models to be NE2001 and YMW16, respectively. Thus, accurate accounting of the Galactic DM is crucial for resolving the Hubble tension with FRBs. Future BAO measurements, next-generation CMB experiments, and more localized FRBs will further constrain the DE EoS and the cosmological parameters. |
| format | Article |
| id | doaj-art-692db9b198a94dff9a8d3b228d178992 |
| institution | OA Journals |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal |
| spelling | doaj-art-692db9b198a94dff9a8d3b228d1789922025-08-20T02:14:38ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-019811910.3847/1538-4357/adade8Probing Cosmology with 92 Localized Fast Radio Bursts and DESI BAOYi-Ying Wang0https://orcid.org/0000-0003-1215-6443Shi-Jie Gao1https://orcid.org/0000-0002-0822-0337Yi-Zhong Fan2https://orcid.org/0000-0002-8966-6911Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences , Nanjing 210033, People’s Republic of China ; yzfan@pmo.ac.cnSchool of Astronomy and Space Science, Nanjing University , Nanjing, 210023, People’s Republic of China; Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University , Ministry of Education, Nanjing, 210023, People’s Republic of ChinaKey Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences , Nanjing 210033, People’s Republic of China ; yzfan@pmo.ac.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei, Anhui 230026, People’s Republic of ChinaRecent baryon acoustic oscillation (BAO) measurements from the Dark Energy Spectroscopic Instrument (DESI) collaboration, combined with the cosmic microwave background (CMB) and type Ia supernovae observations, suggest a preference for dynamical dark energy (DDE) with w _0 > −1 and w _a < 0. Given the cosmological origin of fast radio bursts (FRBs), the combination of their dispersion measures (DMs) and host galaxy redshifts makes localized FRBs a valuable tool for probing cosmology. Using an updated sample of 92 localized FRBs, along with DESI BAO, PlantheonPlus, and CMB data, we constrain the dark energy (DE) equation of state (EoS) under the Chevallier–Polarski–Linder parameterization. We find that even without incorporating CMB data, DDE remains preferred with ${w}_{0}=-0.85{5}_{-0.084}^{+0.084}$ and ${w}_{a}=-1.17{4}_{-0.491}^{+0.462}$ at a confidence level of ∼2.5 σ . A joint analysis constrains these to be ${w}_{0}=-0.78{4}_{-0.064}^{+0.064}$ and ${w}_{a}=-0.87{2}_{-0.278}^{+0.269}$ , showing a discrepancy with ΛCDM at a ∼3.1 σ level. Furthermore, using localized FRBs alone, we estimate the Hubble constant H _0 to be $69.0{4}_{-2.07}^{+2.30}$ and $75.6{1}_{-2.07}^{+2.23}\,{\rm{km}}\,{{\rm{s}}}^{-1}\,{{\rm{Mpc}}}^{-1}$ , assuming the Galactic electron density models to be NE2001 and YMW16, respectively. Thus, accurate accounting of the Galactic DM is crucial for resolving the Hubble tension with FRBs. Future BAO measurements, next-generation CMB experiments, and more localized FRBs will further constrain the DE EoS and the cosmological parameters.https://doi.org/10.3847/1538-4357/adade8High energy astrophysicsCosmological modelsDark energy |
| spellingShingle | Yi-Ying Wang Shi-Jie Gao Yi-Zhong Fan Probing Cosmology with 92 Localized Fast Radio Bursts and DESI BAO The Astrophysical Journal High energy astrophysics Cosmological models Dark energy |
| title | Probing Cosmology with 92 Localized Fast Radio Bursts and DESI BAO |
| title_full | Probing Cosmology with 92 Localized Fast Radio Bursts and DESI BAO |
| title_fullStr | Probing Cosmology with 92 Localized Fast Radio Bursts and DESI BAO |
| title_full_unstemmed | Probing Cosmology with 92 Localized Fast Radio Bursts and DESI BAO |
| title_short | Probing Cosmology with 92 Localized Fast Radio Bursts and DESI BAO |
| title_sort | probing cosmology with 92 localized fast radio bursts and desi bao |
| topic | High energy astrophysics Cosmological models Dark energy |
| url | https://doi.org/10.3847/1538-4357/adade8 |
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