Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss.105..227m&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 105, no. 2, Oct. 1984, p. 227-235.
Astronomy and Astrophysics
Astrophysics
Background Radiation, Big Bang Cosmology, Particle Theory, Radioactive Decay, Relic Radiation, Fermions, Particle Production, Photons
Scientific paper
A model explaining the observed spectral characteristics of the cosmic microwave background in terms of the decay of particles in a steady-state universe is developed, extending and refining the model proposed by Marchant (1983). The model assumes that the universe expands but remains in a steady state because the unobtrusive slowly decaying Fermi-gas particles of which it is composed are spontaneously created, and that the photon spectrum produced by the decay of these particles into one photon and two other low-mass particles has a sawtooth form. The best fit to the observations requires particles having mass 2 meV/(c squared) and decay time about 100 times the Hubble time and hence contributing about 1 percent to the universe density parameter.
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