Observing Cosmological Processes in Real Time with Repeating Fast Radio Bursts

Adi Zitrin; David Eichler

doi:https://doi.org/10.3847/1538-4357/aad6a2

Observing Cosmological Processes in Real Time with Repeating Fast Radio Bursts

Adi Zitrin, David Eichler

Department of Physics

Ben-Gurion University of the Negev

Research output: Contribution to journal › Article › peer-review

Abstract

It is noted that the duration of a fast radio burst (FRB), about 10^-3 s, is a smaller fraction of the time delay between multiple images of a source gravitationally lensed by a galaxy or galaxy cluster than the human lifetime is to the age of the universe. Thus repeating, strongly lensed FRBs may offer an unprecedented opportunity for observing cosmological evolution in "real time." The possibility is discussed of observing cosmic expansion, transverse proper motion, mass accretion, and perhaps growth of density perturbations, as a function of redshift.

Original language	American English
Article number	101
Journal	Astrophysical Journal
Volume	866
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/aad6a2
State	Published - 20 Oct 2018

Keywords

cosmology: observations
dark energy
dark matter
distance scale
gravitational lensing: strong

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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https://doi.org/10.3847/1538-4357/aad6a2

Cite this

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AB - It is noted that the duration of a fast radio burst (FRB), about 10-3 s, is a smaller fraction of the time delay between multiple images of a source gravitationally lensed by a galaxy or galaxy cluster than the human lifetime is to the age of the universe. Thus repeating, strongly lensed FRBs may offer an unprecedented opportunity for observing cosmological evolution in "real time." The possibility is discussed of observing cosmic expansion, transverse proper motion, mass accretion, and perhaps growth of density perturbations, as a function of redshift.

KW - cosmology: observations

KW - dark energy

KW - dark matter

KW - distance scale

KW - gravitational lensing: strong

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JO - Astrophysical Journal

JF - Astrophysical Journal

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M1 - 101

ER -

Observing Cosmological Processes in Real Time with Repeating Fast Radio Bursts

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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