Fast Radio Bursts from Axion Stars

Understand

Axions are one of the most promising candidates of dark matter.

• The axions have been shown to form miniclusters with masses $\sim 10^{-12}M_{\odot}$ and to become dominant component of dark matter.
• Some of the axion miniclusters condense to form axion stars.
• We have recently shown a possible origin of fast radio bursts ( FRBs ) by assuming that the axion stars are main component of halos: FRBs arise from the collisions between the axion stars and neutron stars.