Computer Science
Scientific paper
Feb 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977stin...7732061c&link_type=abstract
Unknown
Computer Science
Electron Density Profiles, Estimating, Solar Flux, Thermosphere, Far Ultraviolet Radiation, Ions, Nitrogen Oxides, Oxygen, Solar Activity, Solar X-Rays
Scientific paper
Appropriate models of solar flux in X-rays and Extreme Ultra Violet (XEUV) bands are presented in the light of the present status of ion chemistry in the region 90 to 130 km and reliable measurements of reaction rates, electron density, and ion composition. It was found that the EUV-flux of Schmidtke (1976) and the X-ray flux of Manson (1976) give the best agreement between observed and theoretical electron density profiles for low solar activity condition. The observed increase of electron density with solar activity yields increases of EUV-flux by factors of 3 and 6 and of X-ray flux by factors of 2 and 4 for moderate and high solar activity conditions respectively. However, the values of ion composition computed with these fluxes show marked differences from that experimentally observed, the implications of which are discussed.
Chakrabarty D. K.
Chakrabarty P.
Saha Arun K.
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