Is there Correlation between Fine Structure and Dark Energy Cosmic Dipoles
Is there Correlation between Fine Structure and Dark Energy Cosmic Dipoles
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DOI：
10.1103/physrevd.86.083517
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发表时间：
2012-06
影响因子：
5
通讯作者：
A. Mariano;L. Perivolaropoulos
中科院分区：
文献类型：
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作者：
A. Mariano;L. Perivolaropoulos
我们提出了一个详细的分析（包括红移层析成像）的宇宙偶极子在凯克+VLT类星体吸收体和联盟2 SnIa样本。结果表明，通过Keck+VLT类星体吸收体样品在4.1能级上获得的精细结构常数宇宙偶极子与通过Union 2样品在2能级上获得的相应暗能量偶极子是一致的.两个偶极方向之间的角间距为11.3 ± 11.8。我们使用Monte Carlo模拟找到的概率，获得所观察到的偶极幅度与所观察到的对齐，在各向同性的宇宙学模型的背景下，暗能量和精细结构常数之间没有相关性。我们发现这个概率小于1/10 6。我们提出了一个简单的物理模型（扩展的拓扑精髓），自然预测暗能量密度和精细结构常数值的球形不均匀分布。该模型是基于一个最近形成的巨大的全球性的哈勃尺度的核心，也耦合非最小的电磁。对于偏离中心的观察者来说，对于精细结构常数和暗能量来说，对齐的偶极各向异性会自然出现
We present a detailed analysis (including redshift tomography) of the cosmic dipoles in the Keck+VLT quasar absorber and in the Union2 SnIa samples. We show that the fine structure constant cosmic dipole obtained through the Keck+VLT quasar absorber sample at 4.1� level, is anomalously aligned with the corresponding dark energy dipole obtained through the Union2 sample at 2� level. The angular separation between the two dipole directions is 11.3 ◦ ± 11.8 ◦ . We use Monte Carlo simulations to find the probability of obtaining the observed dipole magnitudes with the observed alignment, in the context of an isotropic cosmological model with no correlation between dark energy and fine structure constant. We find that this probability is less than one part in 10 6 . We propose a simple physical model (extended topological quintessence) which naturally predicts spherical inhomogeneous distribution for both dark energy density and fine structure constant values. The model is based on the existence of a recently formed giant global monopole with Hubble scale core which also couples non-minimally to electromagnetism. Aligned dipole anisotropies would naturally emerge for an off-center observer for both the fine structure constant and for dark energy