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Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

Published on: July 30, 2020

Low-frequency technology for a lunar interferometer.

Kristian Zarb Adami^1,2,3, I O Farhat²

¹Department of Astrophysics, University of Oxford, Oxford, Oxfordshire, UK.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences

|November 23, 2020

Summary

A lunar low-frequency radio interferometer could detect cosmic dawn signals. This design overcomes Earth

Keywords:

epoch of reionization low-frequency lunar radio interferometer

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Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

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Published on: July 30, 2020

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Area of Science:

Radio astronomy
Cosmology
Lunar science

Background:

Terrestrial radio telescopes face limitations due to Earth's ionosphere and radio frequency interference.
Detecting signals from the cosmic dawn and epoch of reionization (EoR) requires observing below 10 MHz.
Previous designs evolved from single antennas to the Square Kilometre Array (SKA).

Purpose of the Study:

To propose a design architecture for a low-frequency radio interferometer on the lunar surface.
To explore the potential of a lunar-based facility for detecting pre-ionization signals.
To highlight new possibilities for low-frequency radio astronomy enabled by a lunar location.

Main Methods:

Conceptual design architecture for a lunar radio interferometer.
Analysis of challenges and opportunities for lunar radio astronomy.
Review of existing low-frequency radio astronomy efforts (e.g., SKA).

Main Results:

A feasible design concept for a lunar low-frequency radio interferometer is presented.
The Moon offers a radio-quiet environment essential for detecting faint cosmological signals.
Significant engineering challenges associated with lunar deployment are acknowledged.

Conclusions:

A lunar radio interferometer is a promising avenue for exploring the cosmic dawn and EoR.
Overcoming engineering hurdles can unlock unprecedented low-frequency radio astronomy capabilities.
This facility could revolutionize our understanding of the early universe.