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- W2020188144 abstract "view Abstract Citations (13) References (47) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Observational Constraints on Primordial Bubbles Amendola, Luca ; Occhionero, Franco Abstract We test the hypothesis that the large-scale cluster and galaxy distribution be generated by the dynamics of primordial bubbles, which would naturally mimic a fractal distribution. We particularly focus on the recent predictions for the bubble spectrum resulting from a first- order phase transition in extended inflation. First, we concentrate on the observations of the correlation function, and we find they can indeed be reproduced in these models. Furthermore, the void filling fraction turns out to be larger than 75%, as required. Second, we consider the observations of the cosmic microwave background (upper limits to the small and large angular scale anisotropy and to the spectral distortion of the blackbody curve), and we find that in order to avoid conflict with them very steep bubble spectra are required. The simplest models of extended inflation cannot give successful candidates. It is remarked that the topology of our model may turn out to be even spongy and not necessarily bubbly (in the terminology of Gott and coworkers), since during their evolution bubbles overlap and interlock with each other. Publication: The Astrophysical Journal Pub Date: August 1993 DOI: 10.1086/172974 Bibcode: 1993ApJ...413...39A Keywords: Galactic Clusters; Galactic Evolution; Galactic Structure; Plasma Bubbles; Density Distribution; Fractals; Relic Radiation; Astrophysics; COSMOLOGY: LARGE-SCALE STRUCTURE OF UNIVERSE; COSMOLOGY: THEORY; GALAXIES: CLUSTERING full text sources ADS |" @default.
- W2020188144 created "2016-06-24" @default.
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- W2020188144 date "1993-08-01" @default.
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- W2020188144 title "Observational constraints on primordial bubbles" @default.
- W2020188144 doi "https://doi.org/10.1086/172974" @default.
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