Magneto-telluric low-frequency sounding of the lunar subsurface structure (≤1-10 MHz) - methodological and experimental possibilities for determining the threshold (noise) characteristics for long-wave radio astronomy on the lunar surface
- Paper number
IAC-23,A7,3,4,x76053
- Author
Dr. Yuri Ozorovich, Space Research Institute (IKI), RAS, Russian Federation
- Year
2023
- Abstract
On the basis of developments and international cooperation of IKI RAS partners, it is proposed to conduct a new design space experiment - integrated magneto-telluric sounding of the subsurface structure of the Moon in the future space missions to the Moon.Within the framework of this experiment, it is also planned to measure the background (noise) characteristics in the range <1-10 MHz. on the Moon surface, to determine the methodological and experimental possibilities of creating a lunar radiotelescope in the frequency range 1 MHz - 6 MHz, as well as the creation and testing of elements and a prototype of such a lunar radio telescope.The main scientific tasks of the lunar radio telescope:1. Monitoring the geomagnetic activity of the magnetosphereLands (AKP).2. Monitoring the atmospheric dynamics of Venus and Mars.3.Monitoring the solar wind (solartype III radio bursts).4.Monitoring the activity of the magnetospheres of the giant planets(maser emission).Study of transient sources of radio emission.Obtaining data on the processes during the "reionization" of hydrogen.7. Search for exoplanets with terrestrial properties (SETI).The Earth's ionosphere does not transmit electromagnetic radiation in the frequencyrange below 10 MHz.Therefore, electromagnetic radiation of cosmic origin below this frequency is notavailable to a ground observer. A receiver on the lunar surface is devoid of suchrestrictions, since the signals reach the antenna unhindered, which makes it possibleto carry out long-term measurements in stationary conditions, as well as measurements on the far side of the Moon under conditions of e / m shielding by the Earth and the Moon of the direct solar wind, to measure the cosmic microwave background radiation, as well as other transient sources of radio emission, in thefrequency range <<1 MHz - 10 MHz.Within the framework of this project, it is planned to develop a prototype of a universal geophysical complex on the lunar surface to carry out a comprehensive program for studying the subsurface structure of the Moon to a depth of several kilometers, as well as large-scale measurements of noise (threshold) characteristicson the lunar surface caused by the solar wind and secondary subsurface sources of noise characteristics, which determine the threshold characteristics of the lunar radiotelescope receivers.The topic of fast radio bursts is currently being actively developed [1].There is no doubt that the basic mechanisms of their generation will be well understood by the time of the construction of the radio telescope on the moon.
- Abstract document
- Manuscript document
(absent)