An exciting white dwarf microlensing event is predicted to happen on November 11th, 2019! Today’s paper explains how this prediction was made and what we could learn from the microlensing event about the mass-radius relation of white dwarfs.
Steep density drop-offs and orbits with high inclinations and eccentricities are just a few of the mysterious features in the outer reaches of our Solar System – can a single stellar fly-by help explain all of them?
Some of the most interesting structures on galactic scales are formed via tidal interactions. Today’s paper arrives at some unexpected conclusions about which types of galaxies are most likely to host such tidal features.
How do we measure the mass of our own galaxy? Today’s authors use simulations to compare (and improve) several methods.