Effect of Redshift Distributions of Fast Radio Bursts on Cosmological Constraints

Abstract

Nowadays, fast radio bursts (FRBs) have been a promising probe for astronomy and cosmology. However, it is not easy to identify the redshifts of FRBs to date. Thus, no sufficient actual FRBs with identified redshifts can be used to study cosmology currently. In the past years, one has to use the simulated FRBs with "known" redshifts instead. To simulate an FRB, one should randomly assign a redshift to it from a given redshift distribution. But the actual redshift distribution of FRBs is still unknown so far. Therefore, many redshift distributions have been assumed in the literature. In the present work, we study the effect of various redshift distributions on cosmological constraints, while they are treated equally. We find that different redshift distributions lead to different cosmological constraining abilities from the simulated FRBs. This result emphasizes the importance to find the actual redshift distribution of FRBs, and reminds us of the possible bias in the FRB simulations due to the redshift distributions.

17 pages, 10 figures, revtex4; v2: discussions added, Phys. Rev. D in press; v3: published version

References in corpus (30)

• Cosmic Star Formation History
• A bright millisecond radio burst of extragalactic origin
• A New Electron Density Model for Estimation of Pulsar and FRB Distances
• A fast radio burst associated with a Galactic magnetar
• A bright millisecond-duration radio burst from a Galactic magnetar
• The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102
• A census of baryons in the Universe from localized fast radio bursts
• Fast Radio Bursts
• A repeating fast radio burst source localised to a nearby spiral galaxy
• A single fast radio burst localized to a massive galaxy at cosmological distance
• A fast radio burst localised to a massive galaxy
• The Physical Mechanisms of Fast Radio Bursts
• The low density and magnetization of a massive galaxy halo exposed by a fast radio burst
• Host Galaxy Properties and Offset Distributions of Fast Radio Bursts: Implications for their Progenitors
• Probing Galactic Halos with Fast Radio Bursts
• Observations of Fast Radio Bursts at Frequencies down to 400 Megahertz
• The Physics of Fast Radio Bursts
• No pulsed radio emission during a bursting phase of a Galactic magnetar
• Fast Radio Bursts and cosmological tests
• The UTMOST: A hybrid digital signal processor transforms the MOST
• Extracting host galaxy dispersion measure and constraining cosmological parameters using fast radio burst data
• Cosmology-independent estimate of the fraction of baryon mass in the IGM from fast radio burst observations
• On the energy and redshift distributions of fast radio bursts
• Limits on precursor and afterglow radio emission from a fast radio burst in a star-forming galaxy
• Measuring the cosmic proper distance from fast radio bursts
• Constraining the Evolution of the Baryon Fraction in the IGM with FRB and H(z) data
• Reconstructing the Fraction of Baryons in the Intergalactic Medium with Fast Radio Bursts via Gaussian Processes
• Luminosity-duration relation of fast radio bursts
• Real-time triggering capabilities for Fast Radio Bursts at the MeerKAT telescope
• Dispersion measures of fast radio burst host galaxies derived from IllustrisTNG simulation

Cited by in corpus (12)

• Cosmology with fast radio bursts in the era of SKA
• Fast Radio Burst Distributions Consistent with the First CHIME/FRB Catalog
• Probing the interaction between dark energy and dark matter with future fast radio burst observations
• Probing cosmology and gastrophysics with fast radio bursts: Cross-correlations of dark matter haloes and cosmic dispersion measures
• Constraints on the abundance of primordial black holes with different mass distributions from lensing of fast radio bursts
• Unsupervised Machine Learning for Classifying CHIME Fast Radio Bursts and Investigating Empirical Relations
• Fast radio burst energy function in the presence of $\mathrm{D}{\mathrm{M}}_{\mathrm{host}}$ variation
• A Possible Subclassification of Fast Radio Bursts
• Combining strongly lensed and unlensed fast radio bursts: To be a more precise late-universe probe
• Fast Radio Bursts as Standard Candles for Cosmology
• Constraints on the Helium Abundance from Fast Radio Bursts
• Redshift Distributions of Fast Radio Bursts Inferred Using Clustering in Dispersion Measure Space