Star Stream Velocity Distributions in Cold Dark Matter and Warm Dark Matter Galactic Halos
(2024)
Journal Article
Carlberg, R. G., Jenkins, A., Frenk, C. S., & Cooper, A. P. (2024). Star Stream Velocity Distributions in Cold Dark Matter and Warm Dark Matter Galactic Halos. The Astrophysical Journal, 975(1), Article 135. https://doi.org/10.3847/1538-4357/ad7b35
The dark matter subhalos orbiting in a galactic halo perturb the orbits of stars in thin stellar streams. Over time, the random velocities in the streams develop non-Gaussian wings. The rate of velocity increase is approximately a random walk at a ra... Read More about Star Stream Velocity Distributions in Cold Dark Matter and Warm Dark Matter Galactic Halos.