Cosmological Parameter Estimate from Persistent Radio Sources of Fast Radio Bursts
We introduce a novel method to constrain the Hubble constant ( H _0 ) by combining fast radio bursts (FRBs) and their persistent radio sources (PRSs) through the observationally validated Yang relation, L _ν ∝ ∣RM∣, which links PRS luminosity to the rotation measure of the associated FRB. Using a m...
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal Letters |
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| Online Access: | https://doi.org/10.3847/2041-8213/adcc30 |
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| author | Zi-Liang Zhang Bing Zhang |
| author_facet | Zi-Liang Zhang Bing Zhang |
| author_sort | Zi-Liang Zhang |
| collection | DOAJ |
| description | We introduce a novel method to constrain the Hubble constant ( H _0 ) by combining fast radio bursts (FRBs) and their persistent radio sources (PRSs) through the observationally validated Yang relation, L _ν ∝ ∣RM∣, which links PRS luminosity to the rotation measure of the associated FRB. Using a mock sample of PRSs, we demonstrate that the Yang relation can help to unravel the degeneracies among H _0 , baryon density parameter Ω _b , and baryon fraction in the intergalactic medium f _IGM in the traditional approach of using dispersion measure only to perform cosmological analyses. Our method employs a two-stage Markov Chain Monte Carlo analysis to constrain H _0 . Using the available data of six observed PRS systems, we obtain a preliminary constraint of H _0 = 75 ± 30 km s ^−1 Mpc ^−1 . We briefly discuss possible refinements of the method by reducing residual degeneracies and systematic uncertainties using future data and physical modeling. Our results indicate that the Yang relation can potentially become a new probe for performing FRB cosmology. |
| format | Article |
| id | doaj-art-23c84cbc30b645fe8dca14fa044f1e15 |
| institution | OA Journals |
| issn | 2041-8205 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal Letters |
| spelling | doaj-art-23c84cbc30b645fe8dca14fa044f1e152025-08-20T02:12:45ZengIOP PublishingThe Astrophysical Journal Letters2041-82052025-01-019842L4010.3847/2041-8213/adcc30Cosmological Parameter Estimate from Persistent Radio Sources of Fast Radio BurstsZi-Liang Zhang0https://orcid.org/0000-0002-9110-4336Bing Zhang1https://orcid.org/0000-0002-9725-2524Nevada Center for Astrophysics, University of Nevada , Las Vegas, NV 89154, USA ; ziliang.zhang@unlv.edu, bing.zhang@unlv.edu; Department of Physics and Astronomy, University of Nevada , Las Vegas, NV 89154, USANevada Center for Astrophysics, University of Nevada , Las Vegas, NV 89154, USA ; ziliang.zhang@unlv.edu, bing.zhang@unlv.edu; Department of Physics and Astronomy, University of Nevada , Las Vegas, NV 89154, USAWe introduce a novel method to constrain the Hubble constant ( H _0 ) by combining fast radio bursts (FRBs) and their persistent radio sources (PRSs) through the observationally validated Yang relation, L _ν ∝ ∣RM∣, which links PRS luminosity to the rotation measure of the associated FRB. Using a mock sample of PRSs, we demonstrate that the Yang relation can help to unravel the degeneracies among H _0 , baryon density parameter Ω _b , and baryon fraction in the intergalactic medium f _IGM in the traditional approach of using dispersion measure only to perform cosmological analyses. Our method employs a two-stage Markov Chain Monte Carlo analysis to constrain H _0 . Using the available data of six observed PRS systems, we obtain a preliminary constraint of H _0 = 75 ± 30 km s ^−1 Mpc ^−1 . We briefly discuss possible refinements of the method by reducing residual degeneracies and systematic uncertainties using future data and physical modeling. Our results indicate that the Yang relation can potentially become a new probe for performing FRB cosmology.https://doi.org/10.3847/2041-8213/adcc30Radio burstsRadio sourcesRadio continuum emissionHubble constantCosmological parameters |
| spellingShingle | Zi-Liang Zhang Bing Zhang Cosmological Parameter Estimate from Persistent Radio Sources of Fast Radio Bursts The Astrophysical Journal Letters Radio bursts Radio sources Radio continuum emission Hubble constant Cosmological parameters |
| title | Cosmological Parameter Estimate from Persistent Radio Sources of Fast Radio Bursts |
| title_full | Cosmological Parameter Estimate from Persistent Radio Sources of Fast Radio Bursts |
| title_fullStr | Cosmological Parameter Estimate from Persistent Radio Sources of Fast Radio Bursts |
| title_full_unstemmed | Cosmological Parameter Estimate from Persistent Radio Sources of Fast Radio Bursts |
| title_short | Cosmological Parameter Estimate from Persistent Radio Sources of Fast Radio Bursts |
| title_sort | cosmological parameter estimate from persistent radio sources of fast radio bursts |
| topic | Radio bursts Radio sources Radio continuum emission Hubble constant Cosmological parameters |
| url | https://doi.org/10.3847/2041-8213/adcc30 |
| work_keys_str_mv | AT ziliangzhang cosmologicalparameterestimatefrompersistentradiosourcesoffastradiobursts AT bingzhang cosmologicalparameterestimatefrompersistentradiosourcesoffastradiobursts |