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Solitonic axion condensates modeling dark matter halos
- Source :
- Annals of Physics. 336:245-260
- Publication Year :
- 2013
- Publisher :
- Elsevier BV, 2013.
-
Abstract
- 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.
Details
- ISSN :
- 00034916
- Volume :
- 336
- Database :
- OpenAIRE
- Journal :
- Annals of Physics
- Accession number :
- edsair.doi...........82df2020b3a8954d3937020aa0bb59ab
- Full Text :
- https://doi.org/10.1016/j.aop.2013.05.007