A Study of Warm Dark Matter, the Missing Satellites Problem, and the UV Luminosity Cut-Off by Bruce Hoeneisen. on Wednesday 23 November

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.

arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2211.12574v1