Problems and Challenges for Cosmology involving Massive Neutrinos

Details Problems and Challenges for Cosmology involving Massive Neutrinos Problems and Challenges for Cosmology involving Massive Neutrinos

1996-06-11

arxiv.org/abs/astro-ph/9606072v1

Astronomy and Astrophysics

Astrophysics

14 pages, LaTeX, procsla.sty macro required, included, also 8 postscript figures included which will be embedded in text. Open

Scientific paper

I review the challenges and problems facing the standard cosmological model, involving an $\Omega=1$ Universe dominated by non-baryonic dark matter, which arise due to: age estimates of the universe, estimates of the baryon fraction of the universe, and structure formation. Certain of these problems are exacerbated, and certain of these are eased, by the inclusion of some component to the energy density of matter from massive neutrinos. I conclude with a comparison of the two favored current cosmological models, involving either a mixture of cold dark matter and hot dark matter, or the inclusion of a cosmological constant.

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