The Power of the Dark Side
What if I told you it was true? All of it.
Cosmic Rays Make for Windy Galaxies
The energy injected into galaxies from dying stars through supernovae plays an important role in how they evolve in a process known as feedback. However, cosmic rays generated by supernovae may be equally important in constructing a complete picture of galaxy evolution. The authors of today’s astrobite investigate this by producing hydrodynamics simulations including supernovae, cosmic rays, and magnetic fields.
Observing the Simulated Universe
The authors of today’s paper created simulated galaxies, for which true properties are known. They then used synthetic observations to compare the true answers to the values observers would expect to recover.
Ancestors of the Milky Way
What were the first galaxies in the Universe like? Current observations can only access a handful of these ancients. However, a new simulation has synthesized millions to better understand the galaxies of 13 billion years ago.
Enhanced star formation in interacting galaxies: how far does it reach?
Star formation is enhanced when two galaxies interact or merge. But what is the orbital extent of enhanced star formation in interacting galaxies? At which projected separation of the two galaxies does it disappear?
Tidal tails of dwarf galaxies on different orbits around the Milky Way
A phenomenological series of simulations of dwarf galaxies placed on different orbits around a Milky Way-like galaxy, in order to learn about the properties (and observability) of tidal tails in dwarf galaxies around our Milky Way.