Spectral properties of backscattered solar Ly-α radiation in the heliosphere: A search for heliospheric boundary effects |
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| Authors: | Olga A Katushkina Vladislav V Izmodenov |
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| Institution: | 1. Department of Aeromechanics and Gas Dynamics, Faculty of Mathematics and Mechanics, Lomonosov Moscow State University, Moscow 119899, Russia;2. Space Research Institute (IKI), Moscow 117997, Russia;3. Institute for Problems in Mechanics Russian Academy of Sciences, Moscow 119526, Russia |
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| Abstract: | We explore the imprints of the solar wind interaction with the local interstellar medium on spectral properties of backscattered solar Ly-α radiation. We employ a newly developed effective model for the interstellar H atom velocity distribution function in the heliosphere ( Katushkina and Izmodenov, 2011). The model takes into account both global effects of H atom perturbations at the heliospheric boundaries and local (i.e. within 10–20 AU from the Sun) effects of the solar ionization, charge exchange, solar gravitation and radiation pressure. |
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| Keywords: | Heliosphere Interstellar hydrogen Hot model Solar Ly-alpha radiation |
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