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Journal Article

Spectrum of relic gravitational waves in string cosmology

MPS-Authors
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Buonanno,  A.
Dipartimento di Fisica dell’Universita and INFN;
Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

gr-qc_9605072.pdf
(Preprint), 171KB

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Citation

Buonanno, A., Maggiore, M., & Ungarelli, C. (1997). Spectrum of relic gravitational waves in string cosmology. Physical Review D, 33: IFUP-TH 25/96, pp. 3330-3336. doi:10.1103/PhysRevD.55.3330.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-BDFB-D
Abstract
We compute the spectrum of relic gravitons in a model of string cosmology. In the low- and in the high-frequency limits we reproduce known results. The full spectrum, however, also displays a series of oscillations which could give a characteristic signature at the planned LIGO/VIRGO detectors. For special values of the parameters of the model the signal reaches its maximum already at frequencies accessible to LIGO and VIRGO and it is close to the sensitivity of first generation experiments.