Perceiving the equation of state of Dark Energy while living in a Cold Spot

被引：28

作者：

Valkenburg, Wessel ^{[1
,2
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Theoret Teilchenphys & Kosmologie, D-52056 Aachen, Germany

[2] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2012年 / 01期

关键词：

supernova type Ia - standard candles; dark energy theory; CMBR theory; MICROWAVE-ANISOTROPY-PROBE; BACKGROUND ANOMALIES; WMAP OBSERVATIONS; LOCAL VOIDS; SUPERNOVAE; LAMBDA; ORIGIN; MODEL; CMB;

D O I：

10.1088/1475-7516/2012/01/047

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Cold Spot could be an adiabatic perturbation on the surface of last scattering, in which case it is an over-density with comoving radius of the order of 1 Gpc. We assess the effect that living in a similar structure, without knowing it, has on our perception of the equation of state of Dark Energy. We find that structures of dimensions such that they could cause the Cold Spot on the CMB, affect the perceived equation of state of Dark Energy possibly up to ten percent.

引用

页数：17

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