English
Related papers

Related papers: Probing Galactic Halos with Fast Radio Bursts

200 papers

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

We calculate the dispersion measures (DMs) contributed by host galaxies of fast radio bursts (FRBs). Based on a few host galaxy observations, a large sample of galaxy with similar properties to observed ones has been selected from the…

High Energy Astrophysical Phenomena · Physics 2020-07-29 G. Q. Zhang , Hai Yu , J. H. He , F. Y. Wang

If a small fraction of Fast Radio Bursts (FRBs) are associated with Gamma-Ray Bursts (GRBs), as recently suggested by Zhang, the combination of redshift measurements of GRBs and dispersion measure (DM) measurements of FRBs opens a new…

High Energy Astrophysical Phenomena · Physics 2014-03-05 Wei Deng , Bing Zhang

We present the discovery and subarcsecond localization of a new Fast Radio Burst with the Karl G. Jansky Very Large Array and realfast search system. The FRB was discovered on 2019 June 14 with a dispersion measure of 959 pc/cm3. This is…

Five fast radio bursts (FRBs), including three apparently non-repeating ones FRB 180924, FRB 181112, and FRB 190523, and two repeaters, FRB 121102 and FRB 180916.J0158+65, have already been localized so far. We apply a method developed…

High Energy Astrophysical Phenomena · Physics 2020-05-27 Zhengxiang Li , He Gao , Jun-Jie Wei , Yuan-Pei Yang , Bing Zhang , Zong-Hong Zhu

Fast Radio Bursts (FRBs) are millisecond transient radio events with a high energy. By identifying the origin of the \textbf{burst}, it is possible to measure the redshift of the host galaxy, which can be used to constrain cosmological and…

Cosmology and Nongalactic Astrophysics · Physics 2024-02-27 Thais Lemos , Rodrigo S. Gonçalves , Joel C. Carvalho , Jailson S. Alcaniz

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

The dispersion measure (DM)--redshift relation of fast radio bursts (FRBs) has been proposed as a potential new tool for probing intergalactic medium (IGM) and for studying cosmology. However, the poor knowledge of the baryon fraction in…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-23 Bao Wang , Jun-Jie Wei

Fast Radio Bursts (FRBs) are enigmatic radio pulses whose origins are poorly understood. The dispersion measure of host galaxy (${\rm DM_{host}}$) provides critical insights into the local environment of FRB sources. In this study, we…

Astrophysics of Galaxies · Physics 2025-12-09 Yu Sang , Hai-Nan Lin

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

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

There are by now ten published detections of fast radio bursts (FRBs), single bright GHz-band millisecond pulses of unknown origin. Proposed explanations cover a broad range from exotic processes at cosmological distances to atmospheric and…

We analyze plasma dispersion and scattering of fast radio bursts (FRBs) to identify the dominant locations of free electrons along their lines of sight and thus constrain the distances of the burst sources themselves. We establish the…

High Energy Astrophysical Phenomena · Physics 2016-05-20 J. M. Cordes , R. S. Wharton , L. G. Spitler , S. Chatterjee , I. Wasserman

Fast radio bursts (FRBs) are radio signals that last milliseconds. They originate from cosmological distances and have relatively high dispersion measures (DMs), making them being excellent distance indicators. However, the origins of the…

High Energy Astrophysical Phenomena · Physics 2025-03-11 Wenqi Ma , Zhifu Gao , Biaopeng Li , Chenhui Niu , Jumei Yao , Fayin Wang

Dispersion measures (DM) of fast radio bursts (FRBs) probe the density of electrons in the intergalactic medium (IGM) along their lines-of-sight, including the average density versus distance to the source and its variations in direction.…

The recently discovered fast radio bursts (FRBs), presumably of extra-galactic origin, have the potential to become a powerful probe of the intergalactic medium (IGM). We point out a few such potential applications. We provide expressions…

High Energy Astrophysical Phenomena · Physics 2015-12-29 Z. Zheng , E. O. Ofek , S. R. Kulkarni , J. D. Neill , M. Juric

Approximately half of the Universe's dark matter resides in collapsed halos; significantly less than half of the baryonic matter (protons and neutrons) remains confined to halos. A small fraction of baryons are in stars and the interstellar…

Radio wave scattering can cause severe reductions in detection sensitivity for surveys of Galactic and extragalactic fast ($\sim$ms duration) transients. While Galactic sources like pulsars undergo scattering in the Milky Way interstellar…

Astrophysics of Galaxies · Physics 2022-08-03 S. K. Ocker , J. M. Cordes , S. Chatterjee , M. R. Gorsuch

Measuring the Hubble constant (H$_0$) is one of the most important missions in astronomy. Nevertheless, recent studies exhibit differences between the employed methods. Fast radio bursts (FRBs) are coherent radio transients with large…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-03 Tsung-Ching Yang , Tetsuya Hashimoto , Tzu-Yin Hsu , Tomotsugu Goto , Chih-Teng Ling , Simon C. -C. Ho , Amos Y. -A. Chen , Ece Kilerci

The circumgalactic medium (CGM) is poorly constrained at the sub-parsec scales relevant to turbulent energy dissipation and regulation of multi-phase structure. Fast radio bursts (FRBs) are sensitive to small-scale plasma density…

Astrophysics of Galaxies · Physics 2025-07-25 S. K. Ocker , M. Chen , S. P. Oh , P. Sharma