The Fourier space statistics of seed - Like cosmological perturbations
| dc.contributor.author | Perivolaropoulos, Leandros | en |
| dc.date.accessioned | 2015-11-24T18:33:59Z | |
| dc.date.available | 2015-11-24T18:33:59Z | |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/16856 | |
| dc.rights | Default Licence | - |
| dc.title | The Fourier space statistics of seed - Like cosmological perturbations | en |
| heal.abstract | We propose a new test for distinguishing observationally cosmological models based on seed-like primordial perturbations (like cosmic strings or textures), from models based on Gaussian fluctuations. We investigate analytically the {\it Fourier space} statistical properties of temperature or density fluctuation patterns generated by seed-like objects and compare these properties with those of Gaussian fluctuations generated during inflation. We show that the proposed statistical test can easily identify temperature fluctuations produced by a superposition of a small number of seeds per horizon scale for {\it any} observational angular resolution and {\it any} seed geometry. However, due to the Central Limit Theorem, the distinction becomes more difficult as the number of seeds in the fluctuation pattern increases. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.journalName | Mon.Not.Roy.Astron.Soc. | en |
| heal.journalType | peer reviewed | - |
| heal.publicationDate | 1994 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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