Alternative approach to the galactic dark matter problem - art. no. 125016

Citation
U. Nucamendi et al., Alternative approach to the galactic dark matter problem - art. no. 125016, PHYS REV D, 6312(12), 2001, pp. 5016
Citations number
61
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6312
Issue
12
Year of publication
2001
Database
ISI
SICI code
0556-2821(20010615)6312:12<5016:AATTGD>2.0.ZU;2-U
Abstract
We discuss scenarios in which the galactic dark matter in spiral galaxies i s described by a long range coherent field which settles in a stationary co nfiguration that might account for the features of the galactic rotation cu rves. The simplest possibility is to consider scalar fields, so we discuss, in particular, two mechanisms that would account for the settlement of the scalar field in a nontrivial configuration in the absence of a direct coup ling of the field with ordinary matter: topological defects and spontaneous scalarization.