Let me clarify one thing... Basically, ALL galaxies, or almost all of them, have a giant black hole at their center. (If any galaxy does NOT have such a supermasive black hole, then it is likely that it had one in the past, and that it was ejected out of the galaxy.)
quasar
A giant elliptical galaxy at the center of a dense cluster
yes, there is actually a giant black hole in the center of our galaxy, but don't worry because we are safely orbiting around it. A black hole is basically really really really dense material, which forms a blob where the gravitational pull is so stong nothing can escape it, not even light. It can also bend the laws of physics
To understand the 'how' of the presence of a supermassive black hole believed to be in the center of the Milky Way, one would need to know of the mechanism of its origin, which is tied to the origin of the galaxy itself. If sufficient matter is present in a given location, gravitational forces cause the matter to 'clump' and if sufficiently strong, it will continue to accrete and gain in mass; above a certain mass, given favorable conditions, a black hole will form. This is believed to have happened during the formation of our galaxy. In the case of the black hole at the galactic center, calculations indicate it has managed to acquire over four million solar masses.
The center of the (Milky Way) galaxy is a black hole. Think about a heterogeneous mixture of materials of different densities placed under the influence of gravity. Heavier materials tends to stay inner. Expect the same here. The heavier black hole is ought to stay at the center of the galaxy. Answer Scientist think that its a super black hole (I forgot what its really called), think of it as a egg, the yolk is the center and the white is the actual galaxy part. If you didn't know, the Andromeda galaxy has two 'yolks': there appear to be two main concentrations of mass near the center; some astronomers think this may be a sign that the Andromeda galaxy is the result of the collision of two smaller galaxies. A massive black hole is believed to be in the center of the Milky Way, and is now believed to be at the center of most, if not all, galaxies.Current cosmology holds that a supermassive black holetypically resides at the center of a galaxy.
It's not "galaxy stars", but galaxies, that have the black holes at their center.All, or most, galaxies have a giant black hole at their center.
In the center of every galaxy there is a giant black hole.
Yes, incuding a giant one at the center.
quasar
Yes, there is believed to be a super giant black hole at the center of every galaxy.
A giant elliptical galaxy at the center of a dense cluster
A giant elliptical galaxy at the center of a dense cluster
B.) A giant elliptical galaxy
At the centre of our Galaxy, the Milky Way
The rotation of the Milky Way is the result of the gravitational pull of a giant (supermassive) black hole at its center. Use the links below for more information.
There are lots of giants in our galaxy. Betelgeuse is very big (about 20 of our Suns). The massive object / system (expected to be a supermassive black hole) at the center of the Milky Way has the mass about 2.6 million of our Suns.
Most galaxies have a gigantic black hole in their center. The black hole in the center of our galaxy is estimated to have 4 million times the mass of our Sun. Some larger galaxies have black holes with billions of times the mass of our Sun. It is not yet understood how such a large black hole could form.