Zobrazeno 1 - 10
of 51
pro vyhledávání: '"M. Buchvarova"'
Autor:
M Buchvarova, D Draganov
Publikováno v:
Journal of Physics: Conference Series. 2255:012004
Galactic cosmic ray transport in the heliosphere is described by the well-known Parker transport equation. In 1969, Fisk and Axford [1] presented approximate analytical solutions to the cosmic ray transport equation. One of their solutions was later
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e37f134f3b6c27d5267b6f1665e0eefd
https://doi.org/10.1088/1742-6596/2255/1/012004
https://doi.org/10.1088/1742-6596/2255/1/012004
Autor:
Dimitar Draganov, M. Buchvarova
Publikováno v:
Solar Physics. 284:599-614
We discuss a model which parameterizes the cosmic-ray (CR) spectrum at different physical conditions, which include the most important effects controlling the CR intensity, like convection–diffusion and energy losses. By a suitable choice of parame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c11b739d88f6b709ac0d3399f5714e6e
https://doi.org/10.1007/s11207-012-0157-8
https://doi.org/10.1007/s11207-012-0157-8
Publikováno v:
Planetary and Space Science. 59:355-363
An analytical model which generalizes the equations describing the intensity of galactic cosmic rays (CR), including both processes, making it applicable in the inner heliosphere (where energy losses dominate) and outer heliosphere (influenced primar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4d28764aa5e1e06fc8cb85be11b5775
https://doi.org/10.1016/j.pss.2011.01.001
https://doi.org/10.1016/j.pss.2011.01.001
Autor:
M. Buchvarova, Peter Velinov
Publikováno v:
Advances in Space Research. 45:1026-1034
The galactic cosmic rays (GCR) are the main ionization source at altitude of ∼3–35 km in the atmosphere. For high latitude anomalous cosmic ray (ACR) component has also a significant influence on the atmospheric ionization. We propose an empirica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::810b342a75f912cc88e6b2c037000020
https://doi.org/10.1016/j.asr.2009.12.014
https://doi.org/10.1016/j.asr.2009.12.014
Autor:
Peter Velinov, M. Buchvarova
Publikováno v:
Advances in Space Research. 36:2127-2133
The galactic (GCRs) and anomalous (ACRs) cosmic rays form the lower parts of the planetary ionospheres. For this purpose analytical and numerical spectra for cosmic particles are necessary. The spectra of GCRs and ACRs observed in the Solar system ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2aba8f6a18456b054c94c9fe16b79d97
https://doi.org/10.1016/j.asr.2005.04.002
https://doi.org/10.1016/j.asr.2005.04.002
Publikováno v:
Advances in Space Research. 33:227-231
The goal of this paper is to derive expressions for the modified Chapman function Che for the north and south polar regions of an oblate planet. Formulas for Che in an oblate planet atmosphere for high, middle and lower latitudes (including the equat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fecb70681d669e60e5a50e10c1824e7d
https://doi.org/10.1016/j.asr.2003.04.016
https://doi.org/10.1016/j.asr.2003.04.016
Publikováno v:
Advances in Space Research. 33:232-239
As a continuation of our studies of cosmic ray (CR) ionization in the atmospheres of the planets in the Solar system [Adv. Space Res. 27 (11) 1901, 2001a] we present a new method for the calculation of the electron production rate q ( h ) profiles du
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d60de98b437680bd72a6bdd9ac605fde
https://doi.org/10.1016/j.asr.2003.04.017
https://doi.org/10.1016/j.asr.2003.04.017
Publikováno v:
Advances in Space Research. 27:1901-1908
Cosmic rays (CR) create the lower parts of planetary ionospheres. The observed CR spectrum can be distributed into the following five intervals: I ( E = 3.10 6 — 10 11 GeV/n), II ( E = 3.10 2 — 3.10 6 GeV/n), III ( E = 30 MeV/n — 3.10 2 GeV/n),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c9ecee9c9ce39856e4740cfa69f11eb
https://doi.org/10.1016/s0273-1177(01)00323-4
https://doi.org/10.1016/s0273-1177(01)00323-4
Autor:
P. Velinov, M. Buchvarova
Publikováno v:
Proceedings of the International Astronomical Union. 4:471-473
Our model generalizes the differential D(E) and integral D(>E) spectra of cosmic rays (CR) during the 11-year solar cycle. The empirical model takes into account galactic (GCR) and anomalous cosmic rays (ACR) heliospheric modulation by four coefficie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40c74e2926dceaf634e8e3e676f774c0
https://doi.org/10.1017/s1743921309029718
https://doi.org/10.1017/s1743921309029718
Publikováno v:
International Journal of Modern Physics A. 20:6681-6683
The galactic (GCRs) and anomalous (ACRs) cosmic rays form the lower parts of the planetary ionospheres. For this purpose analytical and numerical spectra for cosmic particles are necessary. Our knowledge of GCR modulation in the solar system was grea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cfb2a0970fa4be4035a0f6848f24a6d
https://doi.org/10.1142/s0217751x05029794
https://doi.org/10.1142/s0217751x05029794