Massive neutrino decay and the photoionization of the intergalactic medium

Details Massive neutrino decay and the photoionization of the intergalactic medium Massive neutrino decay and the photoionization of the intergalactic medium

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.198p...1s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 198, Feb. 1982, p. 1P-5P.

Mathematics

Logic

36

Intergalactic Media, Neutrinos, Particle Mass, Photoionization, Photons, Red Shift, Cosmology, Helium Atoms, Hydrogen Atoms, Milky Way Galaxy, Particle Emission, Quasars

Scientific paper

It is suggested that the intergalactic medium (IGM) may be ionized by photons emitted from a cosmological distribution of massive neutrinos. The absence of absorption troughs in quasar spectra due to atomic hydrogen and helium, and the possible presence of a trough due to singly ionized helium, would then imply that the neutrino mass lies between 50 and 110 eV. Its radiative lifetime would have to be 10 to the 27th sec if the critical ionization redshift is 3.5 and the present density of the IGM is 5 x 10 to the -9th per cu cm. The apparent quasar cutoff at a redshift of 3.5 may be due to the IGM being neutral at higher redshifts. The inferred lifetime could be compatible with particle physics expectations if the GIM mechanism is not operating

Affiliated with

Also associated with

No associations

Rating

Massive neutrino decay and the photoionization of the intergalactic medium 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 neutrino decay and the photoionization of the intergalactic medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Massive neutrino decay and the photoionization of the intergalactic medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1648019