A Possible Origin of Gamma Ray Bursts and Axionic Boson Stars

Abstract

We indicate a possible mechanism of generating gamma ray bursts. They are generated by a collision between an axionic boson star and a neutron star. The axionic boson star can dissipates its whole energy $10^{50}$ erg in the magnetized conducting medium of the neutron star. This dissipation arises only around envelope of the neutron star so that a fire ball with small baryon contamination is expected. We have evaluated roughly a rate of the collision per year and per galaxy which is consistent with observations, under plausible assumptions. We also point out that cosmic rays with extremely high energy, $10^{21}$eV, can be produced in the similar collisions with the neutron stars with strong magnetic fields $\sim 10^{14}$G.

10 pages, Revtex

References in corpus (1)

• Radiations from Oscillating Axionic Boson Stars in an External Magnetic Field

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• Can the dark matter halo be a collisionless ensemble of axion stars?
• Ultra High Energy Cosmic Rays from Axion Stars
• X Rays from Old Neutron Stars Heated by Axion Stars