Galaxy Formation Simulations with Scalar Field Dark Matter

Details Galaxy Formation Simulations with Scalar Field Dark Matter Galaxy Formation Simulations with Scalar Field Dark Matter

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003rmxaa..39..113m&link_type=abstract

Revista Mexicana de Astronomía y Astrofísica Vol. 39, pp. 113-118 (2003) (http://www.astroscu.unam.mx/~rmaa/)

Mathematics

Logic

1

Dark Matter, Galaxies: Evolution, Galaxies: Formation, Galaxies: Halos

Scientific paper

We present simulations of galaxy formation using a scalar field cosmological model in which the dark matter is modeled by scalar field Φ . In the Scalar Field Dark Matter (SFDM) model the dark matter consists of an ultra-light particle, with mass mΦ ˜ 10-23 eV. Since in the SFDM model all the successes of the standard cold dark matter model are recovered, this suggests that the scalar field could be a good candidate for the dark matter in galaxy halos. In this work, we perform simulations for the formation of the luminous part of galaxies using the SFDM model, supposing that a dark matter fluctuation forms and evolves, attracting the luminous matter around it. Under these conditions, we find that the luminous matter evolves and forms objects with spiral arms, and later evolves into an object with circular symmetry, looking very similar to the observed spiral galaxies.

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