Axion Stars

Understand

The particle that makes up the dark matter of the universe could be an axion or axion-like particle.

• A collection of axions can condense into a bound Bose-Einstein condensate called an axion star.
• It is possible that a significant fraction of the axion dark matter is in the form of axion stars.
• This would make some efforts to identify the axion as the dark matter particle more challenging, but it would also open up new possibilities.