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The first detection of the solar U+III association with an antenna prototype for the future lunar observatory

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TLDR
In this paper, the authors report about observations of the solar U+III bursts on 5 June of 2020 by means of a new active antenna designed to receive radiation in 4-70 MHz, which can serve as a prototype of the ultra-longwavelength radiotelescope for observations on the farside of the Moon.
Abstract
We report about observations of the solar U+III bursts on 5 June of 2020 by means of a new active antenna designed to receive radiation in 4-70 MHz. This instrument can serve as a prototype of the ultra-long-wavelength radiotelescope for observations on the farside of the Moon. Our analysis of experimental data is based on simultaneous records obtained with the antenna arrays GURT and NDA in high frequency and time resolution, e-Callisto network as well as by using the space-based observatories STEREO and WIND. The results from this observational study confirm the model of Reid and Kontar (2017).

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Methods of radio frequency interference mitigation on the stage of preliminary processing of received signals

TL;DR: In this paper , the authors present methods for computer processing of radio astronomical signals observed with space objects at low frequencies, as well as discuss advantages and disadvantages of the proposed methods for cleaning records from radio interference in the frequency-time domain.
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The critical frequency of the ionospheric f2-layer as obtained from ionosonde data and observations of solar radio bursts

TL;DR: In this article , the authors studied the time variations shown by the critical frequencies of the ionospheric F2 layer through comparative analysis of ionosonde data and observations of type III solar radio bursts.
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Validation of F2-layer critical frequency variations in the ionosphere with radio observations of solar bursts

TL;DR: In this paper , the authors measured the effect of high frequency ionospheric cutoff on radio astronomical observations from the Earth, but on the other hand, it allows one to estimate the F2-layer critical frequency of the ionosphere.
References
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Journal ArticleDOI

Sunspots: An overview

TL;DR: Sunspots are the most readily visible manifestations of solar magnetic field concentrations and their interaction with the Sun's plasma as mentioned in this paper, and their internal structure has been extensively studied for almost 400 years and their magnetic nature has been known since 1908.
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A review of solar type III radio bursts

TL;DR: In this article, the observational properties of type III radio bursts are reviewed with an emphasis on recent results and how each property can help identify attributes of electron beams and the ambient background plasma.
Journal ArticleDOI

A World-Wide Net of Solar Radio Spectrometers: e-CALLISTO

TL;DR: Radio spectrometers of the CALLISTO type to observe solar flares have been distributed to nine locations around the globe and have already proven to be a valuable new tool for monitoring solar activity and for space weather research.
Journal ArticleDOI

Science with a lunar low-frequency array: From the dark ages of the Universe to nearby exoplanets

TL;DR: In this article, the authors discuss the scientific potential and requirements of these new scientific drivers and discuss the constraints for various lunar surface arrays, and calculate the achievable resolution, sensitivity, and confusion limit of a dipole array using general scaling laws, and apply them to various scientific questions.
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