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arXiv · 2211.12574

A Study of Warm Dark Matter, the Missing Satellites Problem, and the UV Luminosity Cut-Off

Bruce Hoeneisen
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Abstract

In the warm dark matter scenario, the Press-Schechter formalism is valid only for galaxy masses greater than the "velocity dispersion cut-off". In this work we extend the predictions to masses below the velocity dispersion cut-off, and thereby address the "Missing Satellites Problem", and the rest-frame ultra-violet luminosity cut-off required to not exceed the measured reionization optical depth. We find agreement between predictions and observations of these two phenomena. As a by-product, we obtain the empirical Tully-Fisher relation from first principles.

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Bruce Hoeneisen. 2022-11-22. A Study of Warm Dark Matter, the Missing Satellites Problem, and the UV Luminosity Cut-Off. https://arxiv.org/abs/2211.12574

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