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Related papers: Probing primordial non-Gaussianity with Fast Radio…

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Fast Radio Bursts (FRBs) carry fossil information about non-Gaussianity generated during inflation. This primordial signal is most accessible on the largest scales, where the scale-dependent bias correction $\propto…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-07 Simthembile Dlamini

We propose to use degree-scale angular clustering of fast radio bursts (FRBs) to identify their origin and the host galaxy population. We study the information content in autocorrelation of the angular positions and dispersion measures (DM)…

Cosmology and Nongalactic Astrophysics · Physics 2017-05-03 Masato Shirasaki , Kazumi Kashiyama , Naoki Yoshida

Extragalactic Fast Radio Bursts (FRBs) have large dispersion measures (DMs) and are unique probes of intergalactic electron density fluctuations. By using the recently released First CHIME/FRB Catalog, we reexamined the structure function…

Cosmology and Nongalactic Astrophysics · Physics 2021-12-08 Siyao Xu , David H. Weinberg , Bing Zhang

Understanding the origin of fast radio bursts (FRB's) is a central unsolved problem in astrophysics that is severely hampered by their poorly determined distance scale. Determining the redshift distribution of FRB's appears to require…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-22 Masoud Rafiei-Ravandi , Kendrick M. Smith , Kiyoshi W. Masui

Fast Radio Bursts (FRBs) probe baryons permeating the cosmic web through their dispersion measures (DMs), which encode the integrated electron density along cosmological sightlines. Using 3,455 unique FRB sources from CHIME/FRB with $\sim…

Fast radio bursts (FRBs) are short-duration radio transients of unknown origin. Thus far, they have been blindly detected at millisecond timescales with dispersion measures (DMs) between 110--2600\,pc\,cm$^{-3}$. However, the observed pulse…

High Energy Astrophysical Phenomena · Physics 2019-07-10 Liam Connor

Fast Radio Bursts (FRBs) are isolated, $\ms$ radio pulses with dispersion measure (DM) of order $10^3\DMunit$. Galactic candidates for the DM of high latitude bursts detected at $\GHz$ frequencies are easily dismissed. DM from bursts…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Jing Luan , Peter Goldreich

The dispersion of fast radio bursts (FRBs) measures the column density of free electrons, tracing the diffuse ionized gas that contains more than $90\%$ of all baryons. On linear scales the FRB dispersion field is an approximately unbiased…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-29 Shion Andrew , Haochen Wang , Kiyoshi Masui , Josh Borrow , Calvin Leung , Ryan Raikman , Matthieu Schaller , Joop Schaye , James M. Sullivan

Fast radio bursts (FRBs) are luminous, millisecond-duration transients that offer great potential for probing the universe, yet their physical origins remain unclear. The dispersion measure (DM) and scattering time ($\tau$) distributions…

High Energy Astrophysical Phenomena · Physics 2025-06-24 Jian-Feng Mo , Weishan Zhu , Long-Long Feng

Fast Radio Bursts (FRBs) are a promising tool for studying the low-density universe as their dispersion measures (DM) are extremely sensitive probes of electron column density. Active Galactic Nuclei (AGN) inject energy into the…

Astrophysics of Galaxies · Physics 2022-03-14 Adam J. Batten , Alan R. Duffy , Chris Flynn , Vivek Gupta , Emma Ryan-Weber , Nastasha Wijers

Fast radio burst (FRB) discoveries are occurring rapidly, with thousands expected from upcoming surveys. The dispersion measures (DM) observed for FRB include important information on cosmological distances and the ionization state of the…

Cosmology and Nongalactic Astrophysics · Physics 2021-05-20 Mukul Bhattacharya , Pawan Kumar , Eric V. Linder

The dispersion of fast radio bursts (FRBs) is a measure of the large-scale electron distribution. It enables measurements of cosmological parameters, especially of the expansion rate and the cosmic baryon fraction. The number of events is…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-19 Robert Reischke , Steffen Hagstotz

Fast Radios Bursts (FRBs) show large dispersion measures (DMs), suggesting an extragalactic location. We analyze the DMs of the 11 known FRBs in detail and identify steps as integer multiples of half the lowest DM found, 187.5cm$^{-3}$ pc,…

High Energy Astrophysical Phenomena · Physics 2015-03-31 Michael Hippke , Wilfried F. Domainko , John G. Learned

Extragalactic fast radio bursts (FRBs) have emerged as powerful probes of turbulence within the intergalactic medium (IGM), a phenomenon that plays a crucial role in various cosmological and astrophysical processes. In this study, we employ…

High Energy Astrophysical Phenomena · Physics 2026-05-06 Rui-Nan Li , Zhao Joseph Zhang , Kentaro Nagamine , Yuri Oku , Qin Wu , F. Y. Wang

Fast radio bursts (FRBs) have excessive dispersion measures (DMs) and an all-sky distribution, which point toward an extragalactic or even a cosmological origin. We develop a method to extract the mean host galaxy DM ($\left\langle{\rm…

High Energy Astrophysical Phenomena · Physics 2017-04-26 Yuan-Pei Yang , Rui Luo , Zhuo Li , Bing Zhang

Dispersion measure (DM) of Fast Radio Bursts (FRBs) are commonly used as a indicator of distance assuming that DM in excess of the expected amount within the Milky Way in the direction of each FRB arise mostly from the inter-galactic…

High Energy Astrophysical Phenomena · Physics 2020-05-27 Yuu Niino

Fast radio bursts (FRBs) offer a powerful probe of the ionized Universe through their dispersion measures (DM). While a significant fraction of the DM arises from the intergalactic medium (IGM), the contributions from the host galaxy and…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-13 Gunalan Muthusami , Gopal Kashyap

Fast radio bursts (FRBs) are a recently discovered class of GHz-band, ms-duration, Jy-level-flux astrophysical transients, which origin is still a mystery. Exploring their gamma-ray counterpart is crucial for constraining their origin and…

High Energy Astrophysical Phenomena · Physics 2023-07-05 G. Principe , L. Di Venere , M. Negro , N. Di Lalla , N. Omodei , R. Di Tria , M. N. Mazziotta , F. Longo

We investigate how the statistical properties of dispersion measure (DM) and apparent flux density/fluence of (non-repeating) fast radio bursts (FRBs) are determined by unknown cosmic rate density history [$\rhoFRB (z)$] and luminosity…

High Energy Astrophysical Phenomena · Physics 2018-08-10 Yuu Niino

Fast Radio Bursts (FRBs) are a class of short-duration transients at radio wavelengths with inferred astrophysical origin. The prototypical FRB is a broadband signal that occurs over the extent of the receiver frequency range, is narrow in…

Instrumentation and Methods for Astrophysics · Physics 2018-09-12 Griffin Foster , Aris Karastergiou , Marisa Geyer , Mayuresh Surnis , Golnoosh Golpayegani , Kejia Lee , Duncan Lorimer , Danny C. Price , Kaustubh Rajwade
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