There's more out there than the eye can see.
Lone stars wander alone in the sparse chasms that yawn between the galaxies.
Where did these stars come from? They were kicked out of the host universe. They formed alone in the dark.
The Hubble Space Telescope looked at 10 galaxy clusters to find answers. The feeble, diffuse light of lonely stars was showing up in the early Universe, and they have been there for a long time.
In the early stages of the cluster's formation, these stars were homeless.
It's not possible to kick stars out of their homes and into space recently.
Up to hundreds of thousands of galaxy are brought together by gravity. The final coalescence occurs when the merging galaxies pull out long streams of material before the final collision.
The tenuous gas between galaxies in a cluster can introduce drag that strips material from a galaxy as it circles the cluster center.
Stars can get thrown out into space at different rates due to different situations inside the universe. This is not likely to account for the light from the other side of the cluster.
There are three possible origins for rogue stars: mergers, stripping, or the stars were already there.
They know that drag in the medium can't be blamed. Over time, more and more stars would be pulled out of the universe, increasing the amount of light coming in.
All the way back to 10 billion years ago, the light of the universe has remained constant. There was no evidence of an increase in the glow.
The stars are homeless, we don't know what happened. The results were produced in large quantities in the early universe according to current theories. The early years of the universe might have been small and they bled stars easily because of a weaker gravitational grasp.
The light from the cluster can help map the dark matter that is invisible to the naked eye. The light would not accurately map the dark matter distribution if the stars were not ejected recently.
Stray stars that were in the early days of the cluster would be more evenly distributed.
It will help us understand the assembly history of an entire galaxy cluster if we figure out the origin of the stars.
The nature and role of dark matter in the Universe are still mysteries and could be solved with the help of mapping the light between galaxies.
The research was published in a journal.
All Rights Reserved © 2024
