|
Título:
|
Magnetic fields from cosmological bulk flows
|
|
Autores:
|
Ruiz Cembranos, José Alberto ;
López Maroto, Antonio ;
Villarrubia Rojo, Héctor
|
|
Tipo de documento:
|
texto impreso
|
|
Editorial:
|
Oxford Univ Press, 2020-09
|
|
Dimensiones:
|
application/pdf
|
|
Nota general:
|
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
|
|
Idiomas:
|
|
|
Palabras clave:
|
Estado = Publicado
,
Materia = Ciencias: Física
,
Tipo = Artículo
|
|
Resumen:
|
We explore the possibility that matter bulk flows could generate the required vorticity in the electron-proton-photon plasma to source cosmic magnetic fields through the Harrison mechanism. We analyze the coupled set of perturbed Maxwell and Boltzmann equations for a plasma in which the matter and radiation components exhibit relative bulk motions at the background level. These background bulk motions induce a relative velocity between the matter and cosmic microwave background rest frames at the present time, i.e. a bulk flow, with an amplitude beta. We find that, to first order in cosmological perturbations, bulk flows with velocities compatible with current Planck limits (beta
|
|
En línea:
|
https://eprints.ucm.es/id/eprint/62914/1/CembranosJAR83preprint.pdf
|
