Why do eliptical galaxies appear to be so bright at core...

Question

and also spiral?

Answer 1

The short answer is that there are lots of stars at the core.  Also, the core of a galaxy is a place of active star birth.  Some of the stars born are really big, and explode as supernovae.  So it's also a place of active star death.  All this activity makes the gas and dust glow too.  And if the black hole is in the process of being fed lots of gas and dust and stars, very bright jets are emitted out the poles.

Answer 2

It is theorized that these galaxies are spiraling around a massive black hole.  The densest part of the galaxy is outside the hole, while the less dense area is spiraling around the outsides.  We are on the edge of the galaxy.

Answer 3

  A galaxy is in a state of collapse and all the stars are merging towards the galactic center,the matter at the center is neutron density matter

Answer 4

Like a planet or the sun the gas cloud that forms a galaxy has most of its density in the center so when it starts condensing into stars most of the super giants cluster in the center. It is also commonly accepted that giant black holes reside in the center of most galaxies. the black hole is dark but most have an accretion disk that gives off more light than the brightest star.

Answer 5

The galaxy is orbiting a black hole, that is what is so shiny, and they spiral just because the stuff on the outside came in later into the orbit