The cards below are refreshed weekly from my NASA ADS library, with a representative figure extracted from each paper and a short plain-language summary of its abstract. For the complete publication record see my ADS library or my ORCID profile.
Testing Warm Dark Matter with Kinematics of the Smallest Galaxies
Every dark matter halo forms with a dense spike at its center, and if dark matter is "warm" enough to erase small-scale structure those spikes are heavy enough to speed up the stars in the smallest galaxies — yet the stars in Tucana V and Triangulum II move far too slowly to match. Taken together, the three faintest Milky Way satellites rule out dark matter particles lighter than 5.8 keV at 95% confidence, a limit that better velocity measurements or the discovery of more such galaxies could sharpen considerably.
Warm, Not Fuzzy: Generalized Ultralight Dark Matter Limits from Milky Way Satellites
Ultralight dark matter produced with structure on small scales behaves less like the "fuzzy" dark matter usually assumed and more like warm dark matter, with an additional wave-interference effect that adds small-scale structure back in. Matching this against the observed population of Milky Way satellite galaxies sets a new lower limit on the particle mass that depends on the scale at which the field's structure peaks.