An 8.0% Determination of the Baryon Fraction in the Intergalactic Medium from Localized Fast Radio Bursts

• Published in: The Astrophysical journal Vol. 944; no. 1; pp. 50 - 57
• Main Authors: Wang, Bao, Wei, Jun-Jie
• Format: Journal Article
• Language: English
• Published: Philadelphia The American Astronomical Society 01.02.2023; IOP Publishing
• Subjects: Astrophysics; Background radiation; Baryons; Big Bang theory; Cosmic microwave background; Cosmological parameters; Cosmology; Galaxies; Intergalactic media; Intergalactic medium; Observational cosmology; Parameters; Radiation; Radio bursts; Radio transient sources; Red shift; Supernovae

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