Besides 'rogue stars', what is another term used to describe the population of stars adrift without a definitive host galaxy?
Answer
Unbound star
The population of stars that have been ejected from their original galactic structures and now travel through intergalactic space without belonging to any specific system are known by several names. 'Rogue stars' and 'interstellar stars' are two prominent terms. A third synonym explicitly used to categorize this group is the term 'unbound star,' which emphasizes the lack of gravitational allegiance to any existing massive structure. These stars contribute to the matter content, though very sparsely, of the intergalactic medium, having escaped the dense environment of their birthplaces.
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