Fast radio bursts (FRBs) are formed by highly magnetized neutron stars called magnetars, and their occurrence may be biased towards massive star-forming galaxies due to environmental factors.
The analysis of 30 FRB host galaxies demonstrates a substantial deficit of low-mass hosts, indicating that FRBs serve as biased tracers, favoring more massive star-forming environments.
High-metallicity environments likely contribute to the formation of magnetar progenitors. These conditions create massive stars that are less compact and increase the likelihood of stellar mergers.
Core-collapse supernovae from merger remnants, particularly in metal-rich galaxies, seem to preferentially produce magnetars, revealing a significant correlation between FRB occurrences and stellar evolution.
Collection
[
|
...
]