A New Method to Measure Hubble Parameter H(z) Using Fast Radio Bursts

Wu, Q.; Yu, Hai; Wang, F. Y.

doi:10.3847/1538-4357/ab88d2

Cited by 48 publications

(32 citation statements)

References 71 publications

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“…Furthermore, Li et al [196] show that the cosmic curvature of the universe, k, can also be model independently constrained to a precision of ∼0.076 using a set of lensed FRBs. Finally, it is also shown that a mock FRB sample of 500 FRBs with dispersion measures and redshift information can accurately measure Hubble parameter (with σH(z) = 0.06) using Monte Carlo simulation [199].…”

Section: Hubble Parametermentioning

confidence: 99%

Probing the Universe with Fast Radio Bursts

Bhandari

Flynn

2021

Universe

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Fast Radio Bursts (FRBs) represent a novel tool for probing the properties of the universe at cosmological distances. The dispersion measures of FRBs, combined with the redshifts of their host galaxies, has very recently yielded a direct measurement of the baryon content of the universe, and has the potential to directly constrain the location of the “missing baryons”. The first results are consistent with the expectations of ΛCDM for the cosmic density of baryons, and have provided the first constraints on the properties of the very diffuse intergalactic medium (IGM) and circumgalactic medium (CGM) around galaxies. FRBs are the only known extragalactic sources that are compact enough to exhibit diffractive scintillation in addition to showing exponential tails which are typical of scattering in turbulent media. This will allow us to probe the turbulent properties of the circumburst medium, the host galaxy ISM/halo, and intervening halos along the path, as well as the IGM. Measurement of the Hubble constant and the dark energy parameter w can be made with FRBs, but require very large samples of localised FRBs (>103) to be effective on their own—they are best combined with other independent surveys to improve the constraints. Ionisation events, such as for He ii, leave a signature in the dispersion measure—redshift relation, and if FRBs exist prior to these times, they can be used to probe the reionisation era, although more than 103 localised FRBs are required.

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Section: Hubble Parametermentioning

confidence: 99%

Probing the Universe with Fast Radio Bursts

Bhandari

Flynn

2021

Universe

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“…The deviation between the simulated value of H(z) and the theoretical one is about 6% at z = 2.4 (adapted from ref. [257]). microlensed.…”

Section: Hubble Parameter H(z)mentioning

confidence: 99%

“…Figure 10 (Color online) H(z) and 1σ errors derived from 500 mock FRBs are shown as blue dots. The red line represents the theoretical H(z) function.The deviation between the simulated value of H(z) and the theoretical one is about 6% at z = 2.4 (adapted from ref [257]…”

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confidence: 99%

The physics of fast radio bursts

Xiao

Wang

Dai

2021

Sci. China Phys. Mech. Astron.

147

107

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In 2007, a very bright radio pulse was identified in the archival data of the Parkes Telescope in Australia, marking the beginning of a new research branch in astrophysics. In 2013, this kind of millisecond bursts with extremely high brightness temperature takes a unified name, fast radio burst (FRB). Over the first few years, FRBs seemed very mysterious because the sample of known events was limited. With the improvement of instruments over the last five years, hundreds of new FRBs have been discovered. The field is now undergoing a revolution and understanding of FRB has rapidly increased as new observational data increasingly accumulate. In this review, we will summarize the basic physics of FRBs and discuss the current research progress in this area. We have tried to cover a wide range of FRB topics, including the observational property, propagation effect, population study, radiation mechanism, source model, and application in cosmology. A framework based on the latest observational facts is now under construction. In the near future, this exciting field is expected to make significant breakthroughs. fast radio burst, neutron star, cosmology

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“…Xu & Zhang proposed that FRBs can be used to probe the intergalactic turbulence [25]. Wu et al pointed out that FRBs can be used to measure the Hubble parameter H(z) independent of cosmological model [26]. Pagano & Fronenberg showed that the highly dispersed FRBs can be used to constraining the epoch of cosmic reionization [27].…”

Section: Introductionmentioning

confidence: 99%

Probing the anisotropic distribution of baryon matter in the Universe using fast radio bursts

Lin,

Sang

2021

Preprint

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We propose that fast radio bursts (FRBs) can be used as the probes to constrain the possible anisotropic distribution of baryon matter in the Universe. Monte Carlo simulations show that, 400 (800) FRBs are enough to detect the anisotropy at 95% (99%) confidence level, if the dipole amplitude is at the order of magnitude 0.01. However, much more FRBs are required to tightly constrain the dipole direction. Even 1000 FRBs are far from enough to constrain the dipole direction within angular uncertainty ∆θ < 40 • at 95% confidence level. The uncertainty on the dispersion measure of host galaxy does not significantly affect the results. If the dipole amplitude is in the level of 0.001, however, 1000 FRBs are not enough to correctly detect the anisotropic signal.

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A New Method to Measure Hubble Parameter H(z) Using Fast Radio Bursts

Cited by 48 publications

References 71 publications

Probing the Universe with Fast Radio Bursts

Probing the Universe with Fast Radio Bursts

The physics of fast radio bursts

Probing the anisotropic distribution of baryon matter in the Universe using fast radio bursts

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