Contribution of solar hydrogen Lyα line emission in total ionization rate in ionospheric D-region during the maximum of solar X-flare
The solar Lyα line emission can be considered as the dominant source of ionization processes in the ionospheric D-region at altitudes above 70 km during unperturbed conditions. However, large sudden impacts of radiation in some other energy domains can also significantly influence the ioniz...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Astronomical Observatory, Department of Astronomy, Belgrade
2015-01-01
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| Series: | Serbian Astronomical Journal |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-698X/2015/1450-698X1500003N.pdf |
| Summary: | The solar Lyα line emission can be considered as the dominant source of
ionization processes in the ionospheric D-region at altitudes above 70 km
during unperturbed conditions. However, large sudden impacts of radiation in
some other energy domains can also significantly influence the ionization
rate and, in this paper, we present a study on the contribution of Lyα
radiation to the ionization rate when the ionosphere is disturbed by solar
X-flares. We give relevant analytical expressions and make calculations and
numerical simulations for the low ionosphere using data collected by the VLF
receiver located in Serbia for the VLF radio signal emitted by the DHO
transmitter in Germany. [Projekat Ministarstva nauke Republike Srbije, br.
III-44002, br. 176002 i br. 176004] |
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| ISSN: | 1450-698X 1820-9289 |