학술논문

A single fast radio burst localized to a massive galaxy at cosmological distance
Document Type
Working Paper
Source
Subject
Astrophysics - High Energy Astrophysical Phenomena
Astrophysics - Cosmology and Nongalactic Astrophysics
Language
Abstract
Fast Radio Bursts (FRBs) are brief radio emissions from distant astronomical sources. Some are known to repeat, but most are single bursts. Non-repeating FRB observations have had insufficient positional accuracy to localize them to an individual host galaxy. We report the interferometric localization of the single pulse FRB 180924 to a position 4 kpc from the center of a luminous galaxy at redshift 0.3214. The burst has not been observed to repeat. The properties of the burst and its host are markedly different from the only other accurately localized FRB source. The integrated electron column density along the line of sight closely matches models of the intergalactic medium, indicating that some FRBs are clean probes of the baryonic component of the cosmic web.
Comment: Published online in Science 27 June 2019