How to Build a Low-Density Super-Earth
Many Super-Earths appear to be less dense than the Earth. How do such planets form? Could a rocky Super-Earth accrete a hydrogen-helium atmosphere in-situ?
A New Animal in the Transient Zoo
A theoretical study of what we can expect to see when a hot Jupiter crashes into its host star.
My Jet is Bigger than Yours: Prograde vs. Retrograde Black Holes
How do you measure a black hole’s rotation? Jets might be the answer!
How to Slow Down a Star
Young massive stars have a variety of different rotation rates, but what sets these initial speeds? In this paper, the authors investigate whether magnetic fields could be the answer.
The Many Modes of Black Hole Accretion
New simulations explore the mechanisms by which black holes grow.
Intrinsic Differences in AGN Accretion Rates
An investigation of a large sample of type I and II AGN yields a unification scheme based on accretion rate.