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Active galaxies are thought to be powered by?
Active Galaxies are thought to be powered by rotation
What are active galaxies powered by?
A central, supermassive black hole.
What do active galaxies differ from normal galaxies?
Galaxies that emit much more radiation (different types of radiation) than a typical galaxy. This actually happens in the galaxy's center, so it's more accurate to talk about an active galactic nucleus. The active galactic nucleus is believed to be caused by a black hole. From Wikipedia: " The radiation from AGN is believed to be a result of accretion of mass by a supermassive black hole at the centre of its host galaxy."
What is the term for active supermassive black holes at the center of galaxies?
I believe that would be exactly the term - "active supermassive black hole". The term "active galaxy" or "active radiogalaxy" is also used for a galaxy that produces large amount of certain radiations; however, such radiation is really caused by the supermassive black hole.
What are distant galaxies with black holes in their centers called?
There have been some suggestions that the objects called quasars might be extremely active galaxies with unusually supermassive black holes at their centers at such great distance from us that it is not possible for telescopes to resolve their galactic structure, making them just look like very bright stars (quasi-stellar objects). However this has not been verified.If these suggestions are correct, these extremely active galaxies must be so distant that the light we are seeing from them must have been emitted only a short time after the big bang began, in the initial cycle of star formation, which would make them the earliest galaxies formed and likely very young galaxies. However if they are this young these extremely active galaxies might have galactic structures so different from the galaxies we are familiar with that even if our telescopes could resolve them, we might not recognize them as galaxies.
What object is believed to reside at the center of Active Galactic Nuclei?
The center of many galaxies is suspected to house a "supermassive black hole". The black hole may even weigh more than all the stars in that galaxy combined. Spiral galaxies are more likely to contain a supermassive black hole.
Do galaxies have black holes in the center?
Yes, many galaxies have supermassive black holes at their centers.
Is nebula or stellar explosion remnants involved in the constellation Virgo?
Virgo is home to a wealth of galaxies, many of which have large central black holes.
Do all galaxies have black holes?
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.
Did a black hole spit out a star, and if so, what are the implications of such an event on our understanding of the universe?
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.
Do all galaxies have a black hole at their center?
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.
Do all galaxies have black holes in the center?
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.
