No. The mass, and therefore the gravitation, of black holes, are only a tiny fraction of matter in the galaxies. The greatest part of the matter in a galaxy is dark matter - matter of unknown composition at the time of this writing.
A super massive black hole.
Yes, many galaxies have supermassive black holes at their centers.
Not all galaxies have black holes. While many galaxies, including our own Milky Way, have supermassive black holes at their centers, there are also galaxies that do not have black holes. The presence of a black hole in a galaxy depends on various factors such as the size and age of the galaxy.
Not all galaxies have a black hole at their center. Some galaxies, like our own Milky Way, do have a supermassive black hole at their center, while others do not.
Not all galaxies have black holes in their centers, but many large galaxies, including our own Milky Way, are believed to have supermassive black holes at their centers.
Yes they do.
It is currently believed that most, if not all, galaxies contain supermassive black holes at their centers. These black holes can vary in size, with some being relatively small and inactive. However, the presence of supermassive black holes in galaxies is a common feature in the universe.
Not all galaxies, but it is believed that the majority of galaxies have central black holes.
Yes, a black hole can eject a star in a process called a tidal disruption event. This event can provide valuable insights into the behavior of black holes and the dynamics of galaxies. It can help scientists better understand how black holes interact with their surroundings and how they influence the evolution of galaxies.
No, not every galaxy contains a black hole. While many galaxies do have a supermassive black hole at their center, there are also galaxies that do not have a black hole.
Not every galaxy has a black hole at its center. While many galaxies do have supermassive black holes at their centers, there are also galaxies that do not have black holes.
Supermassive black holes found at the centers of galaxies are related to the stellar velocity dispersion in the bulge of the galaxy. To a lesser degree, there is also a correlation with the mass of the galaxy.