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Axion emission from SN1987A by nucleon-nucleon axion bremsstrahlung is considered. On the basis of the neutrino observations the axion luminosity must be 10^53 erg s^-1. This occurs if (1) axions couple very weakly: m₀0. 7510^-3 eV; or (2) axions couple strongly enough to be ``trapped'' and radiated from an ``axion sphere'' with T₀8 MeV: m₀2. 2 eV. In general, ``axion trapping'' occurs for m₀0. 016 eV. Our mass constraints are at best reliable to within a factor of 3.
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Michael S. Turner (Mon,) studied this question.
synapsesocial.com/papers/69d72359523bf2ea07f508c7 — DOI: https://doi.org/10.1103/physrevlett.60.1797
Michael S. Turner
Zhejiang Institute of Freshwater Fisheries
Physical Review Letters
University of Chicago
Fermi National Accelerator Laboratory
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