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Cosmology with Gravitational Wave/Fast Radio Burst Associations
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abstract
Recently, some theoretical models predicted that a small fraction of fast radio bursts (FRBs) could be associated with gravitational waves (GWs). In this work, we discuss the possibility of using GW/FRB association systems, if commonly detected in the future, as a complementary cosmic probe. We propose that upgraded standard sirens can be constructed from the joint measurements of luminosity distances $D_{L}$ derived from GWs and dispersion measures ${\rm DM_{IGM}}$ derived from FRBs (i.e., the combination $D_{L}\cdot{\rm DM_{IGM}}$). Moreover, unlike the traditional standard-siren approach (i.e., the $D_{L}$ method) and the $\rm DM_{IGM}$ method that rely on the optimization of the Hubble constant $H_0$, this $D_{L}\cdot{\rm DM_{IGM}}$ method has the advantage of being independent of $H_0$. Through Monte Carlo simulations, we prove that the $D_{L}\cdot{\rm DM_{IGM}}$ method is more effective to constrain cosmological parameters than $D_{L}$ or ${\rm DM_{IGM}}$ separately, and enables us to achieve accurate multimessenger cosmology from around 100 GW/FRB systems. Additionally, even if GW/FRB associations are not exist, the methodology developed here can still be applied to those GWs and FRBs that occur at the same redshifts.
Forward citations
Cited by 5 Pith papers
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Two new highly scattered fast radio bursts: evidence for scatter broadening by the circumsource medium
FRB240312D is the first highly scattered FRB whose scattering screen is localized to within about 8 pc of the source, with the two new bursts implying a rate consistent with shorter FRBs.
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Constraining the Baryon Fraction in Extragalactic Diffuse Ionized Gas with 124 Localized Fast Radio Bursts
Analyzing 92 localized FRBs with a Jacobian-corrected IGM dispersion PDF plus CMB, BAO, and supernova data gives f_IGM = 0.864 ± 0.041 (YMW16, ΛCDM); the abstract's '124 bursts, f_d > 90%' headline is not supported by...
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Cosmological-model independent limits on photon mass from FRB and SNe data
From 68 fast radio bursts and 1048 supernovae, the authors find a photon rest mass of roughly 18 to 29 times 10^-51 kilograms depending on the assumed intergalactic gas fraction, with zero mass still allowed at 2 to 3 sigma.
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The impact of FRB dispersion measure probability distribution functions on cosmographic estimates
Cosmographic constraints from 106 FRBs on H0, q0, j0 depend sensitively on whether a Gaussian or quasi-Gaussian PDF is assumed for DM_IGM and on whether the baryon mass fraction is fixed or free.
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Estimating the baryon fraction in the IGM from well-localized FRBs and DESI data
Using 107 localized FRBs with DESI BAO and supernova distances, the author estimates fIGM near 0.99 in the constant model but finds Bayesian evidence inconclusive between constant and evolving baryon fraction.
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