Astrophysics (index)about


(denser group of stars within a larger group)

A bulge is a group of stars bunched together within a larger group. Galaxies often have such a bulge spanning its center, most easily seen if it is a disk galaxy. Current thought is that such a central bulge is likely to host a supermassive black hole.

The Milky Way's central bulge, the galactic bulge, is a region surrounding the galactic center, with a very high density of stars (cited as ten million stars within a parsec of the center). It is embedded in a bar.

(stars,galaxies,object type)

Referenced by:
disk galaxy
Freeman's law
galactic bulge
galaxy classification
lenticular galaxy (S0)
Sombrero Galaxy (M104)
MicroFUN (μFUN)
Milky Way
signatures of formation
spiral arm
stellar dynamics
stellar population
Sagittarius Window Eclipsing Extrasolar Planet Search (SWEEPS)