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Axion Stars and Fast Radio Bursts
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abstract
We show that fast radio bursts arise from collisions between axion stars and neutron stars. The bursts are emitted in the atmosphere of the neutron stars. The observed frequencies of the bursts are given by the axion mass $m_a$ such as $m_a/2\pi\simeq 1.4\,\mbox{GHz}\,\big(m_a/(6\times 10^{-6}\mbox{eV})\big)$. From the event rate $\sim 10^{-3}$ per year in a galaxy, we can determine the mass $\sim 10^{-11}M_{\odot}$ of the axion stars. Using these values we can explain short durations ( $\sim $ms ) and amount of radiation energies ( $\sim 10^{43}$GeV ) of the bursts.
Forward citations
Cited by 2 Pith papers
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From Rags to Jeans: Axion Miniclusters from Early matter domination
Temperature-dependent axion mass fluctuations in early matter domination source order-unity axion overdensities by equality, yielding two distinct regions in the nonlinear spectrum and estimated minicluster masses.
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Cooling binary neutron star remnants via nucleon-nucleon-axion bremsstrahlung
Nucleon-nucleon-axion bremsstrahlung cooling in binary neutron star merger remnants is too weak to leave a detectable imprint on gravitational waves or ejecta, so it cannot improve axion mass constraints.
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