Radio Emission of Rydberg Atoms in the Upper Atmosphere Modified by High-Power HF Radio Waves
| Autor: | A. V. Troitskii, A. V. Vostokov, V. L. Frolov, I. V. Rakut |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Nuclear and High Energy Physics Solar flare Astrophysics::High Energy Astrophysical Phenomena Astronomy and Astrophysics Statistical and Nonlinear Physics Astrophysics::Cosmology and Extragalactic Astrophysics High frequency 01 natural sciences 010305 fluids & plasmas Electronic Optical and Magnetic Materials Atmosphere symbols.namesake Excited state Physics::Space Physics 0103 physical sciences Rydberg atom Principal quantum number Rydberg formula symbols Electrical and Electronic Engineering Ionosphere Atomic physics 010306 general physics |
| Zdroj: | Radiophysics and Quantum Electronics. 62:677-684 |
| ISSN: | 1573-9120 0033-8443 |
| Popis: | We report on the results of studying the radio emission of the Rydberg states of atoms and molecules in the Earth’s upper atmosphere at ionospheric altitudes when the ionosphere is modified by high-power HF radio waves radiated by the Sura heating facility. Radio emission from the upper atmosphere, caused by the emission of highly excited Rydberg atoms and molecules with the principal quantum number n = 163–169 and n = 225 (decimeter wavelength range) and two spectral features that coincide with the frequencies of transitions between Rydberg states m = 169 → n = 168 with the transition frequency νn = 1375.35 MHz and m = 166 → n = 165 with νn = 1451.5 MHz were detected. Characteristic altitudes of the Rydberg radiation generation region were 150–250 km. The radio emission intensity corresponds to 10–45 K, which is comparable with the intensity of the radio emission generated during solar flares. |
| Databáze: | OpenAIRE |
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