A Cosmic string specific signature on the cosmic microwave background

dc.contributor.authorMoessner, R.en
dc.contributor.authorPerivolaropoulos, L.en
dc.contributor.authorBrandenberger, Robert H.en
dc.date.accessioned2015-11-24T18:33:46Z
dc.date.available2015-11-24T18:33:46Z
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/16803
dc.rightsDefault Licence-
dc.titleA Cosmic string specific signature on the cosmic microwave backgrounden
heal.abstractUsing an analytical model for the string network we show that the kurtosis of cosmic microwave background (CMB) temperature gradient maps is a good statistic to distinguish between the cosmic string model and inflationary models of structure formation. The difference between the stringy and inflationary value for the kurtosis is inversely proportional to the angular resolution and to the number of strings per Hubble volume of the strings' scaling solution. If strings are indeed responsible for CMB anisotropies then experiments with resolutions of a couple of arcminutes or smaller could determine it using this statistic.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.journalNameAstrophys.J.en
heal.journalTypepeer reviewed-
heal.publicationDate1993-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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