Author(s)

Bruce Hoeneisen

Universidad San Francisco de Quito, Quito, Ecuador.

Observed spiral galaxy rotation curves allow a measurement of the warm dark matter particle velocity dispersion and mass. The measured thermal relic mass m_h ≈ 100 eV is in disagreement with limits, typically in the range 1 to 4 keV. We review the measurements, update the no freeze-in and no freeze-out scenario of warm dark matter, and try to identify the cause of the discrepancies between measurements and limits.

Warm Dark Matter, Spiral Galaxy Rotation Curves, Stellar Mass Distributions, Lyman-α Forest

Hoeneisen, B. (2022) Comments on Warm Dark Matter Measurements and Limits. International Journal of Astronomy and Astrophysics, 12, 94-109. doi: 10.4236/ijaa.2022.121006.