At the heart of any massive galaxy is a black hole whose strong gravitational field affects only part of the galaxy's center. While these black holes are hundreds of millions of times smaller than their home galaxy, without them we could not describe the universe. Understanding the universe depends on the activity and evolution of galaxies with black holes, without which the properties of galaxies would not be descriptive.
Theoretical predictions state that when black holes become larger and accumulate enough energy, they can expel gases into galaxies at great distances. At present, observing and describing this mechanism is one of the fundamental challenges in astrophysics.
The Canary Islands Astrophysics Institute has taken this a step further. Researchers at the institute tried to observe the effects of these ejected gases on the main galaxy as well as the surrounding galaxies. To do so, they used a digital search tool that could examine the properties of galaxies in thousands of star clusters.
Hubble image of a star cluster
In this study of a particular galaxy, they found that one of the neighboring galaxies produced more or less stars than its position with the main galaxy. By simulation, scientists were able to justify such a problem and show that galaxies have a large effect on the production of their stars relative to their position with each other.
These results suggest that the central black holes of galaxies may play an important role in the evolution of surrounding galaxies. Such results explain one of the most primitive features of our universe. We have to keep in mind that due to the great complexity of calculating the impact of a black hole on a galaxy cluster, this theory needs to be further explored. However, these calculations could open the way for scientists to study this behavior of black holes more closely - that is, to throw gas around.
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