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Keywords:

  • galaxies: individual: NGC 253;
  • galaxies: kinematics and dynamics;
  • galaxies: magnetic fields;
  • galaxies: spiral;
  • galaxies: structure

ABSTRACT

The magnetic fields that are present in the galaxy NGC 253 are exceptionally strong. This means that they can influence the rotation of matter and hence the mass-to-light ratio. In this context, we address the issue of the presence of a non-baryonic dark matter halo in this galaxy.