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arXiv:astro-ph/0501342 (astro-ph)
[Submitted on 17 Jan 2005 (v1), last revised 21 Feb 2005 (this version, v2)]

Title:Loitering universe models in light of the CMB

Authors:O. Elgaroy (1,2), D. F. Mota (1,3), T. Multamaki (2) ((1) ITA, University of Oslo, (2) NORDITA, (3) Department of Physics, University of Oxford)
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Abstract: Spatially flat loitering universe models have recently been shown to arise in the context of brane world scenarios. Such models allow more time for structure formation to take place at high redshifts, easing, e.g., the tension between the observed and predicted evolution of the quasar population with redshift. While having the desirable effect of boosting the growth of structures, we show that in such models the position of the first peak in the power spectrum of the cosmic microwave background anisotropies severely constrains the amount of loitering at high redshifts.
Comments: 4 pages, 3 figures. Included discussion of the linear growth factor. Matches version accepted for publication in PRD
Subjects: Astrophysics (astro-ph); High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:astro-ph/0501342
  (or arXiv:astro-ph/0501342v2 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0501342
Journal reference: Phys.Rev. D71 (2005) 067301
Related DOI: https://doi.org/10.1103/PhysRevD.71.067301

Submission history

From: Oystein Elgaroy [view email]
[v1] Mon, 17 Jan 2005 15:05:38 UTC (60 KB)
[v2] Mon, 21 Feb 2005 09:04:00 UTC (23 KB)
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