Memoirs of a Galaxy
Today’s bite explores how we can look at the stellar haloes of galaxies to reconstruct their past merger and accretion events.
Today’s bite explores how we can look at the stellar haloes of galaxies to reconstruct their past merger and accretion events.
How does a galaxy’s past impact its present day surroundings? Today’s authors use genetically modified simulations to investigate the effect of merger histories on stellar haloes.
Today’s paper looks at the gravitational influence of the Large Magellanic Cloud on the Milky Way – one may think our Galaxy is in equilibrium, but it is actually being sloshed around!
Sorting the Sombrero galaxy into a galaxy classification is difficult to do, but new evidence suggests that like Harry Potter, the Sombrero galaxy may fit into more than one category.
How do you get a glimpse of dark matter? Stare really hard at the outskirts of galaxies and hope the matter isn’t totally dark.
New observations at infrared background find a mysterious background glow on the sky, which is inconsistent with the previously proposed models for its origin. The authors suggest that the infrared glow could be coming from rogue stars that have been expelled from host galaxies out into the dark matter halos that surround galaxies.