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Vacuum discharge as a possible source of gamma-ray bursts

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arxiv astro-ph/9912303 v2 pith:VWGM7VZ5 submitted 1999-12-15 astro-ph

Vacuum discharge as a possible source of gamma-ray bursts

classification astro-ph
keywords energyburstscreationsneutronpairstardensitygamma
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We propose that spontaneous particle--anti-particle pair creations from the discharged vacuum caused by the strong interactions in dense matter are major sources of $\gamma$-ray bursts. Two neutron star collisions or black hole-neutron star mergers at cosmological distance could produce a compact object with its density exceeding the critical density for pair creations. The emitted anti-particles annihilate with corresponding particles at the ambient medium. This releases a large amount of energy. We discuss the spontaneous $p\bar{p}$ pair creations within two neutron star collision and estimate the exploded energy from $p\bar{p}$ annihilation processes. The total energy could be around $10^{51} - 10^{53}$ erg depending on the impact parameter of colliding neutron stars. This value fits well into the range of the initial energy of the most energetic $\gamma$-ray bursts.

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