Large-Scale Baryon Isocurvature Inhomogeneities
1995; IOP Publishing; Volume: 451; Linguagem: Inglês
10.1086/176199
ISSN1538-4357
AutoresCraig J. Copi, Keith A. Olive, David N. Schramm,
Tópico(s)Particle physics theoretical and experimental studies
Resumoview Abstract Citations (15) References (24) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Large-Scale Baryon Isocurvature Inhomogeneities Copi, Craig J. ; Olive, Keith A. ; Schramm, David N. Abstract Big bang nucleosynthesis constraints on baryon isocurvature perturbations are determined. A simple model ignoring the effects of the scale of the perturbations is first reviewed. This model is then extended to address the claim that large amplitude perturbations will collapse, preventing their baryons from contributing to the observed baryon density. It is found that baryon isocurvature perturbations are constrained to provide only a slight increase in the density of baryons in the universe over the standard homogeneous model. In particular, it is found that models which rely on power laws and the random phase approximation for the power spectrum are incompatible with big bang nucleosynthesis unless an ad hoc, small-scale cutoff is included. Publication: The Astrophysical Journal Pub Date: September 1995 DOI: 10.1086/176199 arXiv: arXiv:astro-ph/9410007 Bibcode: 1995ApJ...451...51C Keywords: COSMOLOGY: THEORY; ELEMENTARY PARTICLES; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; ABUNDANCES; Astrophysics E-Print: 11pages + 8figures, LaTeX (2.09), postscript figures available via anonymous ftp from oddjob.uchicago.edu:/ftp/ibbn/fig?.ps where ?=1-8 or via email from copi@oddjob.uchicago.edu, Fermilab-Pub-94/???-A and UMN-TH-1307/94 full text sources arXiv | ADS |
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