Host Galaxy Dispersion Measure of Fast Radio Burst
1 Valley Christian School, Dublin, 94568, United States of America.
2 Qian nan Normal University for Nationalities, Duyen, 558000, P. R. China.
3 Qian nan Key Laboratory of Radio Astronomy, Duyen, 558000, P. R. China
Citation: Xinxin Wang, Ye-Zhao Yu, “Host Galaxy Dispersion Measure of Fast Radio Burst”, American Research Journal
of Physics, Vol 9, no. 1, 2023, pp. 1-7
Abstract
Abstract
Fast radio bursts are a class of transient radio sources that are thought to originate from extragalactic sources since
their dispersion measure greatly exceeds the highest dispersion measure that the Milky Way interstellar medium can
provide. Host Galaxies of twenty-two fast radio bursts have already been identified [1]. In this paper, the dispersion
measurement of these fast radio bursts produced by the Milky Way interstellar medium, and the intergalactic medium
is obtained through known physical models to yield the host galaxy dispersion measure. It is observed that the host
galaxy dispersion measure increases with its redshift value. We also obtained that the host galaxy dispersion measure
has different distribution between repeaters and non-repeaters. It is noted that the reason for the divergence of the host
galaxy dispersion measures should be accounted for by the difference in their local environment.
