Resumen
Instead of fluid type dark matter (DM), axion-like scalar fields with a periodic self-interaction or some truncations of it are analyzed as a model of galaxy halos. It is probed if such cold Bose-Einstein type condensates could provide a viable soliton type interpretation of the DM 'bullets' observed by means of gravitational lensing in merging galaxy clusters. We study solitary waves for two self-interacting potentials in the relativistic Klein-Gordon equation, mainly in lower dimensions, and visualize the approximately shape-invariant collisions of two 'lump' type solitons.
Idioma original | Inglés |
---|---|
Páginas (desde-hasta) | 245-260 |
Número de páginas | 16 |
Publicación | Annals of Physics |
Volumen | 336 |
DOI | |
Estado | Publicada - sep. 2013 |
Publicado de forma externa | Sí |