J/A+A/712/A236 Cosmographic constraints from FRBs (Sales+, 2026)
Cosmographic constraints from late-time probes including fast radio bursts.
Sales L.L., de Farias K.E.L., Queiroz A.R., Santos J.R.L., Batista R.A.,
Oliveira A.R.M., Santana L.F., Wuensche C.A., Villela T., Vieira J.
<Astron. Astrophys. 712, A236 (2026)>
=2026A&A...712A.236S 2026A&A...712A.236S (SIMBAD/NED BibCode)
ADC_Keywords: Radio sources ; Redshifts
Keywords: cosmological parameters
Abstract:
Late-time astrophysical probes offer a powerful way to investigate the
expansion history of the Universe. Among these probes, fast radio
bursts (FRBs) are millisecond-duration astrophysical transients whose
extragalactic origin makes them a promising addition to studies of
large-scale structure. Their dispersion measures encode information
about the intervening cosmic plasma, which can be linked to
cosmological distances.
We used late-time probes, such as well-localized FRBs, baryon acoustic
oscillations (BAO), supernovae (SNe), and cosmic chronometers (CC) to
constrain cosmological parameters through a model-independent
cosmographic approach.
We integrated FRB data with BAOs from Dark Energy Spectroscopic
Instrument (DESI) DR2, SNe, and CCs to derive constraints on the
Hubble constant (H0), the deceleration parameter (q0), and the jerk
parameter (j0), using Markov Chain Monte Carlo (MCMC) analysis for
parameter estimation.
The cosmographic approach with FRBs alone provides
H0=66.35+4.13-5.04km/s/Mpc, q0=-0.33-0.15+0.21, and
j0=0.83-0.670.57, corresponding to a precision of ∼6% for the
Hubble constant and showing consistency with the {LAMBDA}CDM
expectation. The DESI+CMB dataset yields
H0=65.59+1.25-1.24km/s/Mpc, q0=-0.29-0.08+0.07, and
j0=0.58-0.04+0.03, providing a ∼2% precision on H0 and may suggest
a possible tension in the late-time kinematic sector relative to the
{LAMBDA}CDM expectation when BAO measurements are calibrated with a
Planck-inferred sound horizon. Combining the FRB, SNe, DESI+CMB, and
CC datasets further tightens the constraints to
H0=68.03+0.53-0.52km/s/Mpc, q0=-0.41±0.02, and j0=0.55±0.02,
with the jerk parameter remaining lower than j0=1 at the 1σ
confidence level.
These findings hint at a possible late-time kinematic tension, as
indicated by the inferred value of the jerk parameter, which is
primarily driven by the DESI+CMB dataset under standard early-Universe
assumptions for the sound horizon. At the current level of
observational precision, FRBs play a complementary role in the
cosmographic analysis, with their impact expected to increase as
larger and more precise samples of well-localized events become
available.
Description:
This catalog provides a compilation of Fast Radio Bursts with measured
redshifts and dispersion measures used to derive cosmographic
constraints from late-time cosmological probes.
The FRB sample was compiled from published Fast Radio Burst catalogs
and individual detections reported by CHIME/FRB, ASKAP, DSA, Parkes,
and other facilities. Only host-identified FRBs available in the
literature at the time of publication are included.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 34 116 Fast Radio Burst dataset
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See also:
J/A+A/675/A99 : FRBs search with Fermi-LAT (Principe+, 2023)
J/A+A/698/A18 : Selected CHIME FRB sample (Zhang+, 2025)
J/ApJS/257/59 : First CHIME/FRB Fast Radio Burst Catalog
(CHIME/FRB Col.+, 2021)
J/MNRAS/500/655 : Galactic DM contribution to the extragalactic FRBs
(Das+, 2021)
J/MNRAS/511/1961 : New CHIME/FRB I catalogue updates released
(Hashimoto+, 2022)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- FRB Fast Radio Burst identifier
12- 18 F7.5 --- z Redshift
20- 27 F8.3 pc/cm3 DMobs Observed dispersion measure
29- 34 F6.2 pc/cm3 DMMW Milky Way dispersion measure contribution
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Acknowledgements:
Klecio E.L. de Farias, klecio.lima(at)uaf.ufcg.edu.br
(End) Patricia Vannier [CDS] 28-Jan-2026