Abstract
We constrain the redshift dependence of (rest frame) host galaxy dispersion measures of localized Fast Radio Bursts (FRBs) by assuming it to vary as a simple power law (∝ (1+z)α ). We simultaneously fit α as well as the host dispersion measure to the data of FRBs with known redshifts. We find that α between 0 to 1 is preferred depending upon our modelling choices. Current data can constrain |α| ≲ 2 at a 68 percent confidence interval. Such constraints have implications for our understanding of galaxy formation and can be used to inform galaxy and large scale simulations.
Original language | English |
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Article number | 036 |
Journal | Journal of Cosmology and Astroparticle Physics |
Volume | 2025 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jan 2025 |
Bibliographical note
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Keywords
- cosmological simulations
- galaxy evolution
- hydrodynamical simulations