Quintessence and variation of the fine structure constant in the cosmic microwave background radiation

被引:9
作者
Huey, G [1 ]
Alexander, S
Pogosian, L
机构
[1] Queen Mary Univ London, Sch Math Sci, Astron Unit, London E1 4NS, England
[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England
来源
PHYSICAL REVIEW D | 2002年 / 65卷 / 08期
关键词
D O I
10.1103/PhysRevD.65.083001
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study the dependence of the CMB temperature anisotropy spectrum on the value of the fine structure constant alpha and the equation of state of the dark energy component of the total density of the universe. We find that bounds imposed on the variation of alpha from the analysis of currently available CMB data sets can be significantly relaxed if one also allows for a change in the equation of state.
引用
收藏
页码:830011 / 830015
页数:5
相关论文
共 44 条
[1]   Time varying speed of light as a solution to cosmological puzzles [J].
Albrecht, A ;
Magueijo, J .
PHYSICAL REVIEW D, 1999, 59 (04)
[2]  
[Anonymous], ASTROPH0109350
[3]  
Avelino PP, 2000, PHYS REV D, V62, DOI 10.1103/PhysRevD.62.123508
[4]  
AVELINO PP, 2001, PHYS REV D, V64
[5]   Constraints on cosmological parameters from MAXIMA-1 [J].
Balbi, A ;
Ade, P ;
Bock, J ;
Borrill, J ;
Boscaleri, A ;
De Bernardis, P ;
Ferreira, PG ;
Hanany, S ;
Hristov, V ;
Jaffe, AH ;
Lee, AT ;
Oh, S ;
Pascale, E ;
Rabii, B ;
Richards, RL ;
Smoot, GF ;
Stompor, R ;
Winant, CD ;
Wu, JHP .
ASTROPHYSICAL JOURNAL, 2000, 545 (01) :L1-L4
[6]   Varying-α theories and solutions to the cosmological problems [J].
Barrow, JD ;
Magucijo, J .
PHYSICS LETTERS B, 1998, 443 (1-4) :104-110
[7]  
BARROW JD, IN PRESS PHYS REV D
[8]   Cosmic concordance and the fine structure constant [J].
Battye, RA ;
Crittenden, R ;
Weller, J .
PHYSICAL REVIEW D, 2001, 63 (04)
[9]   Current constraints on the dark energy equation of state [J].
Bean, R ;
Melchiorri, A .
PHYSICAL REVIEW D, 2002, 65 (04)
[10]   Early-universe constraints on dark energy [J].
Bean, R ;
Hansen, SH ;
Melchiorri, A .
PHYSICAL REVIEW D, 2001, 64 (10)