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Updated: Sep 17, 2025

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
Published on: July 30, 2020
Noise in Maps of the Sun at Radio Wavelengths II: Solar Use Cases
Timothy Bastian1, Bin Chen2, Surajit Mondal2
1National Radio Astronomy Observatory, 520 Edgemont Rd, Charlottesville, VA 22903 USA.
Abstract:
Noise in images of strong celestial sources at radio wavelengths using Fourier synthesis arrays can be dominated by the source itself, so-called self-noise. We outlined the theory of self-noise for strong sources in a companion paper. Here we consider the case of noise in maps of radio emission from the Sun which, as we show, is always dominated by self noise. We consider several classes of science use cases for current and planned arrays designed to observe the Sun in order to understand limitations imposed by self-noise. We focus on instruments operating at decimeter and centimeter wavelengths but the results are applicable to other wavelength regimes.
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