On the Dispersion Measure of High-Redshift Synchrotron Sources

TL;DR

This paper proposes a method to measure the dispersion measure of high-redshift synchrotron sources by analyzing their signals, enabling direct estimation of ionized baryon density along the line of sight.

Contribution

The paper introduces a novel technique to determine the dispersion measure of distant synchrotron sources through signal analysis, facilitating direct baryon density measurements.

Findings

Method for deriving dispersion measure from signal analysis.

Potential to measure ionized baryon density directly.

Applicable to high-redshift synchrotron sources.

Abstract

A method is proposed for deriving the dispersion measure (related to the line-of-sight integrated free electron density) to high-redshift, powerful synchrotron radio sources by analysis of the temporal/spectral properties of the recorded signals. This would allow direct measurements of the distributed density of ionized baryons along the line-of-sights to the sources.