Meson synchrotron emission from central engines of gamma-ray bursts with strong magnetic fields

Gamma-ray bursts (GRBs) are presumed to be powered by the still unknown cen tral engines with timescales in the range from 1 ms to approximately a few seconds, We propose that the GRB central engines would be a viable site for strong meson synchrotron emission if they were compact astrophysical objec ts, such as neutron stars or rotating black holes with extremely strong mag netic fields (H similar to 10(12)-10(17) G), and if protons or heavy nuclei were accelerated to ultrarelativistic energies on the order of similar to 10(12)-10(22) eV. We show that the charged scaler mesons like pi(+/-) and h eavy vector mesons like rho, which have several decay modes onto pi(+/-), c ould be emitted, with a high intensity that is a thousand times larger than photons, through strong couplings to ultrarelativistic nucleons. These mes on synchrotron emission processes eventually produce a burst of very high e nergy cosmic neutrinos with 10(12) eV less than or equal to E-v. These neut rinos are to be detected during the early-time duration of short GRBs.