Transport of cosmic rays in magnetosphere and heliosphere: GeoMag and HelMod webmodels
Contributo in Atti di convegno
Data di Pubblicazione:
2014
Citazione:
Transport of cosmic rays in magnetosphere and heliosphere: GeoMag and HelMod webmodels / Bobik, P; Boschini, M; DELLA TORRE, S; Gervasi, M; Grandi, D; Kudela, K; LA VACCA, G; Mallamaci, M; Pensotti, S; Putis, M; Rancoita, P; Rozza, D; Tacconi, M. - 8:(2014), pp. 189-195. (Intervento presentato al convegno Astroparticle, Particle, Space Physics and Detectors for Physics Applications tenutosi a Villa Olmo, Como - Italia nel 2013) [10.1142/9789814603164_0029].
Abstract:
Our codes to evaluate the solar modulation of Galactic Cosmic Rays (HelMod) and to trace the the charged particles inside the Earth magnetosphere (GeoMag) have been implemented as webmodels in the two websites, helmod.org and geomagsphere.org. HelMod model uses a 2D Monte Carlo approach to solves the Parker transport equation, obtaining a modulated flux of Cosmic Rays for a period starting from 1990. We implemented a web interface to get a catalog of: 1) proton energy spectra at a fixed time, and 2) time modulated flux at a fixed energy. A beta-version of HelMod for more complex simulations of protons, antiprotons, electrons and positrons, at any distance from the Sun is also available to the users. The GeoMag back-tracing code reconstructs the charged particle trajectories in the Earth Magnetosphere back in time. We use the last models of internal (IGRF-11) and external (Tsyganenko 1996 -T96- and 2005 -T05-) field components valid up to 2015. The user can get the vertical rigidity cutoff estimation obtained with the backtracing technique and the asymptotic coordinates and directions for several rigidities at a fixed position and date, starting from Jan. 1st, 1968 (for T96) and Jan. 1st, 1995 (for T05) respectively till 31st Dec 2012. The website geomagsphere.org reports, in addition, a list of the most intense solar flares registered by several observatories in space, starting from January 2011, together with the evaluation of the dynamic pressure of solar energetic particles, related to the major solar events occurred in the same period.
Tipologia CRIS:
4.1 Contributo in Atti di convegno
Keywords:
Heliosphere; Magnetosphere; web sites
Elenco autori:
Bobik, P; Boschini, M; DELLA TORRE, S; Gervasi, M; Grandi, D; Kudela, K; LA VACCA, G; Mallamaci, M; Pensotti, S; Putis, M; Rancoita, P; Rozza, D; Tacconi, M
Link alla scheda completa:
Titolo del libro:
Proceedings of the 14th ICATPP Conference "Astroparticle, Particle, Space Physics and Detectors for Physics Applications"