Present limits to cosmic bubbles from the COBE-DMR three-point correlation function
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....
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
21 May 2001
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| In: |
Monthly notices of the Royal Astronomical Society
Year: 2001, Volume: 323, Issue: 3, Pages: 677-680 |
| ISSN: | 1365-2966 |
| DOI: | 10.1046/j.1365-8711.2001.04219.x |
| Online Access: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1046/j.1365-8711.2001.04219.x Verlag, kostenfrei, Volltext: https://academic.oup.com/mnras/article/323/3/677/1154650 
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| Author Notes: | P.S. Corasaniti, L. Amendola and F. Occhionero |
| Summary: | 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. |
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| Item Description: | Gesehen am 17.11.2017 |
| Physical Description: | Online Resource |
| ISSN: | 1365-2966 |
| DOI: | 10.1046/j.1365-8711.2001.04219.x |