New solution of diffusion-advection equation for cosmic-ray transport using ultradistributions

In this paper we exactly solve the diffusion–advection equation (DAE) for cosmic-ray transport. For such a purpose we use the Theory of Ultradistributions of J. Sebastiao e Silva, to give a general solution for the DAE. From the ensuing solution, we obtain several approximations as limiting cases of...

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Autores principales: Rocca, Mario Carlos, Plastino, Ángel Ricardo, Plastino, Ángel Luis, Ferri, Gustavo Luis, De Paoli, Ángel Luis
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2015
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100637
https://ri.conicet.gov.ar/11336/20907
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Sumario:In this paper we exactly solve the diffusion–advection equation (DAE) for cosmic-ray transport. For such a purpose we use the Theory of Ultradistributions of J. Sebastiao e Silva, to give a general solution for the DAE. From the ensuing solution, we obtain several approximations as limiting cases of various situations of physical and astrophysical interest. One of them involves Solar cosmic-rays’ diffusion.