Probing Diffuse Gas with Fast Radio Bursts

Abstract

The dispersion measure -- redshift relation of Fast Radio Bursts, $\mathrm{DM}(z)$, has been proposed as a potential new probe of the cosmos, complementary to existing techniques. In practice, however, the effectiveness of this approach depends on a number of factors, including (but not limited to) the intrinsic scatter in the data caused by intervening matter inhomogeneities. Here, we simulate a number of catalogues of mock FRB observations, and use MCMC techniques to forecast constraints, and assess which parameters will likely be best constrained. In all cases we find that any potential improvement in cosmological constraints are limited by the current uncertainty on the the diffuse gas fraction, $f_{\mathrm{d}}(z)$. Instead, we find that the precision of current cosmological constraints allows one to constrain $f_{\mathrm{d}}(z)$, and possibly its redshift evolution. Combining CMB + BAO + SNe + $H_0$ constraints with just 100 FRBs (with redshifts), we find a typical constraint on the mean diffuse gas fraction of a few percent. A detection of this nature would alleviate the "missing baryon problem", and therefore highlights the value of localisation and spectroscopic followup of future FRB detections.

arXiv comment11 pages; 3 figues

References in corpus (58)

• emcee: The MCMC Hammer
• Planck 2015 results. XIII. Cosmological parameters
• Cosmic Star Formation History
• A bright millisecond radio burst of extragalactic origin
• The Murchison Widefield Array: the Square Kilometre Array Precursor at low radio frequencies
• A New Electron Density Model for Estimation of Pulsar and FRB Distances
• A Repeating Fast Radio Burst
• The Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST) Project
• The direct localization of a fast radio burst and its host
• The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102
• The Cosmic Energy Inventory
• The Baryon Census in a Multiphase Intergalactic Medium: 30% of the Baryons May Still Be Missing
• FRBCAT: The Fast Radio Burst Catalogue
• A Living Theory Catalogue for Fast Radio Bursts
• A single fast radio burst localized to a massive galaxy at cosmological distance
• Science with ASKAP - the Australian Square Kilometre Array Pathfinder
• A fast radio burst localised to a massive galaxy
• Locating the "missing" baryons with extragalactic dispersion measure estimates
• A Second Source of Repeating Fast Radio Bursts
• Cosmological implications of Fast Radio Burst / Gamma-Ray Burst Associations
• Lensing of Fast Radio Bursts as a Probe of Compact Dark Matter
• Probing Galactic Halos with Fast Radio Bursts
• Canadian Hydrogen Intensity Mapping Experiment (CHIME) Pathfinder
• HIRAX: A Probe of Dark Energy and Radio Transients
• Fast radio bursts as a cosmic probe?
• FRB 121102 is coincident with a star forming region in its host galaxy
• Probing the missing baryons with the Sunyaev-Zel'dovich effect from filaments
• The Tianlai project: a 21cm cosmology experiment
• A Search for Warm/Hot Gas Filaments Between Pairs of SDSS Luminous Red Galaxies
• Fast Radio Burst/Gamma-Ray Burst Cosmography
• The Aemulus Project II: Emulating the Halo Mass Function
• Testing Einstein's Equivalence Principle with Fast Radio Bursts
• Strongly lensed repeating Fast Radio Bursts as precision probes of the universe
• Future Cosmological Constraints from Fast Radio Bursts
• Fast Radio Bursts and cosmological tests
• Extragalactic dispersion measures of fast radio bursts
• Constraints on the Photon Mass with Fast Radio Bursts
• Constraints on the missing baryons from the kinetic Sunyaev-Zeldovich effect in Planck data
• Cross-correlating Planck tSZ with RCSLenS weak lensing: Implications for cosmology and AGN feedback
• Cosmology-independent estimate of the fraction of baryon mass in the IGM from fast radio burst observations
• A search for the host galaxy of FRB171020
• Limits on Einstein's Equivalence Principle from the first localized Fast Radio Burst FRB 150418
• Dispersion Distance and the Matter Distribution of the Universe in Dispersion Space
• Planck intermediate results. XXXVII. Evidence of unbound gas from the kinetic Sunyaev-Zeldovich effect
• Measuring the circum- and inter-galactic baryon contents with fast radio bursts
• DSA-10: A Prototype Array for Localizing Fast Radio Bursts
• Probing the diffuse baryon distribution with the lensing-tSZ cross-correlation
• Measuring the cosmic proper distance from fast radio bursts
• The Dispersion of Fast Radio Bursts from a Structured Intergalactic Medium at Redshifts z < 1.5
• A Fast Radio Burst Occurs Every Second throughout the Observable Universe
• Finding the Missing Baryons with Fast Radio Bursts and Sunyaev-Zeldovich Maps
• Dissecting the thermal Sunyaev-Zeldovich-gravitational lensing cross-correlation with hydrodynamical simulations
• Constraining the Evolution of the Baryon Fraction in the IGM with FRB and H(z) data
• The Astrophysical Consequences of Intervening Galaxy Gas on Fast Radio Bursts
• Associating Fast Radio Bursts with Extragalactic Radio Sources: General Methodology and a Search for a Counterpart to FRB 170107
• Detecting fast radio bursts at decametric wavelengths
• Searching for HI imprints in cosmic web filaments with 21-cm intensity mapping
• Planck intermediate results. LIII. Detection of velocity dispersion from the kinetic Sunyaev-Zeldovich effect

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• A census of baryons in the Universe from localized fast radio bursts
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• The Physics of Fast Radio Bursts
• A new measurement of the Hubble constant using Fast Radio Bursts
• Constraining the Cosmic Baryon Distribution with Fast Radio Burst Foreground Mapping
• Finding the missing baryons in the intergalactic medium with localized fast radio bursts
• A New Method to Measure Hubble Parameter $H(z)$ using Fast Radio Bursts
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• Statistical modelling of the cosmological dispersion measure
• Detecting Helium Reionization with Fast Radio Bursts
• What it Takes to Measure Reionization with Fast Radio Bursts
• An 8.0\% Determination of the Baryon Fraction in the Intergalactic Medium from Localized Fast Radio Bursts
• A forecast of using fast radio burst observations to constrain holographic dark energy
• Constraining the Epoch of Reionization With Highly Dispersed Fast Radio Bursts
• The Dispersion Measure Contributions of the Cosmic Web
• Fast radio bursts at the dawn of the 2020s
• The BINGO Project IX: Search for Fast Radio Bursts -- A Forecast for the BINGO Interferometry System
• How limiting is optical follow-up for fast radio burst applications? Forecasts for radio and optical surveys
• Improvement of cosmological constraints with the cross correlation between line-of-sight optical galaxy and FRB dispersion measure
• The BINGO/ABDUS Project: Forecast for cosmological parameters from a mock Fast Radio Bursts survey
• Cosmic backgrounds from the radio to the far-infrared: recent results and perspectives from cosmological and astrophysical surveys
• Bounding the photon mass with cosmological propagation of fast radio bursts