Stellar Accelerations and Dark Matter

Stellar Accelerations and Dark Matter

For astronomers, looking at the sky can be like watching an unfamiliar sport on TV. We can’t make sense of what we see, but is it because we don’t know the rules, or we can’t see all the players? (Or, worst case, we can’t see the players and we...
PyUltraLight

PyUltraLight

In the simplest models (and thus best-studied) models, gravity is the only interaction that plays a role in the overall astrophysical predictions of the dark matter. However, many models that have interesting connections to particle physics have more complicated...
Two-scale Oscillons

Two-scale Oscillons

Oscillons are spatially stationary, quasi-periodic solutions of nonlinear field theories. (Informal version: oscillons are what would happen if a stone was thrown into a pond and, rather than creating ripples, the water bounced up and down at the point of impact –...