Axionlike scalar fields and the Lane-Emden truncation of their periodic potential are analyzed as a model of dark matter halos. The apparent enhancement of infall velocities in merging clusters is intriguing: here it is tentatively explained via an intrinsic inelastic effect during relativistic soliton collisions. © 2014 American Physical Society.
|Original language||American English|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|State||Published - 12 Feb 2014|