Development of the solar flare plasma density investigation method based on the 2.2 MeV gamma-line time profile analysis
| Autor: | S. N. Kuznetsov, E. V. Troitskaia, B. M. Kuzhevskij |
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| Rok vydání: | 1998 |
| Předmět: |
Atmospheric Science
Hydrogen Astrophysics::High Energy Astrophysical Phenomena Nuclear Theory Aerospace Engineering chemistry.chemical_element Spectral line law.invention Altitude law Astrophysics::Solar and Stellar Astrophysics Neutron Nuclear Experiment Line (formation) Physics Solar flare Astronomy and Astrophysics Computational physics Geophysics chemistry Space and Planetary Science Physics::Space Physics General Earth and Planetary Sciences Development (differential geometry) Atomic physics Flare |
| Zdroj: | Advances in Space Research. 22:1141-1147 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/s0273-1177(98)00002-7 |
| Popis: | We propose the method of studying the flare plasma density in different layers of the solar atmosphere, in particular, in the deep layers, which are inaccessible for optical observations. The method is based on the analysis of the time profile of 2.223 MeV gamma-rays, produced by neutron captures by hydrogen. We present the model calculations of the 2.223 MeV gamma-ray production time profiles and depth distribution densities at initial neutron energies 0.1–100 MeV. Both monoenergetic neutrons and power low spectra neutrons are considered at 5 solar plasma density altitude models. The dependence of the resultant curves on the initial neutron energy spectrum and on the altitude profile of the solar atmospheric and subphotospheric density is analysed. Applicability of the method to experimental data is discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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