2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54360A spectrum of relic stochastic gravitational radiation, strongly tilted towards high frequencies, and characterized by two basic parameters is shown to emerge in a class of string theory models. We estimate the required sensitivity for detection of the predicted gravitational radiation and show that a region of our parameter space is within reach for some of the plannedgravitational-wave detectors.4 pages, uuencoded psHigh Energy Physics - TheoryAstrophysicsGeneral Relativity and Quantum Cosmologytext