Rotational curves of galaxies and neutrino halos

Details Rotational curves of galaxies and neutrino halos Rotational curves of galaxies and neutrino halos

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...177...84p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 177, no. 1-2, May 1987, p. 84-90. SNSF-supported research.

Astronomy and Astrophysics

Astrophysics

3

Dark Matter, Galactic Rotation, Neutrinos, Baryons, Halos, Spiral Galaxies

Scientific paper

Assuming that massive neutrinos dominate the dark matter in galactic halos, the authors calculate the mass radius relations and rotational curves for an isothermal neutrino distribution as well as for a distribution with a spatial cutoff (King model). For mv ⪆ 40 eV, galaxies between 10 and 100 kpc radius can be reproduced with satisfactory (flat) rotational curves in the isothermal model. The authors also include baryons in the galactic core. The King model fails to give acceptable rotational curves for all baryon distributions considered.

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