The constraints on power spectrum of relic gravitational waves from current observations of large-scale structure of the Universe

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dc.creatorNovosyadlyj, B.
dc.creatorApunevych, S.
dc.date2004-12-02
dc.date.accessioned2026-07-07T02:16:07Z
dc.date.available2026-07-07T02:16:07Z
dc.descriptionWe carry out the determination of the amplitude of relic gravitational waves power spectrum. Indirect best-fit technique was applied to compare observational data and theory predictions. As observations we have used data on large-scale structure (LSS) of the Universe and anisotropy of cosmic microwave background (CMB) temperature. The conventional inflationary model with 11 parameters has been investigated, all of them evaluated jointly. This approach gave us a possibility to find parameters of power spectrum of gravitational waves along with statistical errors. The main result consists in following: WMAP data on power spectrum of CMB temperature fluctuations along with LSS data prefer model with small amplitude of tensor mode power spectrum, close to zero. The upper limit for its amplitude at quadupole harmonics T/S=0.6 at 95% C.L.
dc.descriptionSubmitted to the proceedings of international conference "Astronomy in Ukraine - Past, Present, Future", July 15-17, Kiev, Ukraine
dc.identifierhttps://arxiv.org/abs/astro-ph/0412060
dc.identifierhttp://arxiv.org/abs/astro-ph/0412060
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8667
dc.subjectAstrophysics
dc.titleThe constraints on power spectrum of relic gravitational waves from current observations of large-scale structure of the Universe
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