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arXiv:astro-ph/0011484 (astro-ph)
[Submitted on 27 Nov 2000 (v1), last revised 20 Apr 2001 (this version, v3)]

Title:A Local Void and the Accelerating Universe

Authors:Kenji Tomita (Yukawa Institute for Theoretical Physics, Kyoto University)
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Abstract: Corresponding to the recent observational claims that we are in a local void (an underdense region) on scales of 200 - 300 Mpc, the magnitude-redshift relation in a cosmological model with a local void is investigated. It is already evident that the accelerating behavior of high-z supernovae can be explained in this model, because the local void plays a role similar to the positive cosmological constant. In this paper the dependence of the behavior on the gaps of cosmological parameters in the inner (low-density) region and the outer (high-density) region, the radius of the local void, and the clumpiness parameter is studied and its implication is discussed.
Comments: 6 pages with 4 figures. Mon. Not. RAS (accepted)
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0011484
  (or arXiv:astro-ph/0011484v3 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0011484
Journal reference: Mon.Not.Roy.Astron.Soc.326:287,2001
Related DOI: https://doi.org/10.1046/j.1365-8711.2001.04597.x

Submission history

From: Kenji Tomita [view email]
[v1] Mon, 27 Nov 2000 09:48:39 UTC (148 KB)
[v2] Mon, 9 Apr 2001 09:48:55 UTC (128 KB)
[v3] Fri, 20 Apr 2001 10:48:39 UTC (128 KB)
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