Present limits to cosmic bubbles from the COBE-DMR three-point correlation function

• Verfasst von: Corasaniti, Pier Stefano [VerfasserIn]
• Verfasst von: Amendola, Luca [VerfasserIn]
• Verfasst von: Occhionero, Franco [VerfasserIn]
• Titel: Present limits to cosmic bubbles from the COBE-DMR three-point correlation function
• Verf.angabe: P.S. Corasaniti, L. Amendola and F. Occhionero
• Umfang: 4 S.
• Fussnoten: Gesehen am 17.11.2017
• Titel Quelle: Enthalten in: Royal Astronomical Society: Monthly notices of the Royal Astronomical Society
• Jahr Quelle: 2001
• Band/Heft Quelle: 323(2001), 3, S. 677-680
• ISSN Quelle: 1365-2966
• DOI: doi:10.1046/j.1365-8711.2001.04219.x
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1565456114

Abstract

The existence of large-scale voids in several galaxy surveys suggests the occurrence of an inflationary first-order phase transition. This process generates primordial bubbles that, before evolving into the present voids, leave at decoupling a non-Gaussian imprint on the cosmic microwave background.In this paper we evaluate an analytical expression of the collapsed three-point correlation function from the bubble temperature fluctuations. Comparing the results with COBE-DMR measures, we obtain upper limits on the allowed non-Gaussianity and hence on the bubble parameters.