What determines if an irregular galaxy is an evolutionary remnant?
Answer
It may be the result of a past collision or interaction that has not yet settled into a stable shape.
The shape of a galaxy is dynamic and not always permanent. Many irregular galaxies are considered evolutionary remnants of violent events, such as gravitational interactions or collisions between larger systems. When these events occur, the galaxy may be torn, stretched, or deformed from a previously orderly state. These systems remain in a state of disorganization because they have not yet had sufficient time to settle into a new, stable shape, such as a disk or an ellipse, thereby representing a transitional or disrupted phase in their life cycle.
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What is an Irregular Galaxy? - YouTube
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