Missing dark matter in a nearby dwarf galaxy
A satellite of Andromeda is missing an important ingredient — so where did it go?
A satellite of Andromeda is missing an important ingredient — so where did it go?
Come join us on a wild ride as we explore the ancient myths that bring the stars to life!
The Milky Way’s nearest neighbor, the Andromeda galaxy, is a promising target for deep multi-wavelength observations. Come listen to Prof. Julianne Dalcanton talk about her work catching up with the neighbor at #AAS233!
Cosmic cannibalism, or the merging of small galaxies with larger ones, happens all over the universe. We now know that the Milky Way lost a sister galaxy to Andromeda, and we’re now a step closer to understanding what might ultimately happen when Andromeda comes for us.
Can dark matter annihilation explain multi-wavelength observations of Andromeda’s galactic center?
The authors have identified several satellite galaxies confined to a plane in their orbits around our nearest neighbor, the Andromeda Galaxy. Such a planar structure is perhaps at odds with our current understanding of galaxy formation.