Massive neutrinos and dark halos around galaxies.

Details Massive neutrinos and dark halos around galaxies. Massive neutrinos and dark halos around galaxies.

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...323....1s&link_type=abstract

Astronomy and Astrophysics, v.323, p.1-4

Astronomy and Astrophysics

Astrophysics

16

Dark Matter, Galaxies: Halos, Elementary Particles

Scientific paper

In this paper we investigate the hypothesis that hot massive neutrinos can be the main dark matter component of galactic halos. The consistency of the cosmological ν's phase space density with the properties of the dark matter halos of dwarf galaxies sets an upper limit to the neutrino mass mnu_ (Tremaine & Gunn, 1973PhRvL..42..407T; TG). Here we apply the TG argument to a very large sample (1100 objects) of high quality rotation curves of normal spirals, and calculate reliable upper limits to the neutrino mass. Unlike previous works, our estimate is distance independent and holds for different Hubble Types and for the whole luminosity range. We find that, in order to be clustered on galaxy halo scales, ν's should be so massive as to violate the cosmological constraint {OMEGA}nu_1. Thus, we conclude that hot neutrinos do not play a relevant role on galactic scales.

Affiliated with

Also associated with

No associations

Rating

Massive neutrinos and dark halos around galaxies. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Massive neutrinos and dark halos around galaxies., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Massive neutrinos and dark halos around galaxies. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1183668