Spinning up massive classical bulges in spiral galaxies
Spiral galaxies are formed with a central bulge, around which their spiral arms are wrapped. But how do galaxy bulges form?
Spiral galaxies are formed with a central bulge, around which their spiral arms are wrapped. But how do galaxy bulges form?
Bulges are a familar feature of spiral galaxies, but bulges seem to come in many shapes and sizes. Studying bulges can provide clues for the role of galaxy mergers in the history of the universe.