Bursts of gravitational radiation from superconducting cosmic strings and the neutrino mass spectrum

Berezinsky, Hnatyk and Vilenkin showed that superconducting cosmic strings could be central engines for cosmological gamma-ray bursts and for producin g the neutrino component of ultra-high energy cosmic rays. A consequence of this mechanism would be that a detectable cusp-triggered gravitational wav e burst should be released simultaneously with the gamma -ray surge, If con temporary measurements of both gamma and nu radiation could be made for any particular source, then the cosmological time-delay between them might be useful for putting unprecedentedly tight bounds on the neutrino mass spectr um. Such measurements could consistently verify or rule out the model, sinc e strictly correlated behaviour is expected for the duration of the event a nd for the time variability of the spectra. (C) 2001 Published by Elsevier Science B.V.