2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/11843The Invited Review on Joint Discussion "High Energy Transients" on XXIIIrd General Assembly of IAU, Kioto, 1997 is presented. The simulated rates of neutron star + neutron star, neutron star + black hole and black hole + black hole mergings are considered in relation with the problem of GRBursts origin and gravitational waves detection.14 pages, LaTeX, 4 figuresAstrophysicstext