Modifying gravity with the aether: An alternative to dark matter

被引:228
作者
Zlosnik, T. G.
Ferreira, P. G.
Starkman, G. D.
机构
[1] Univ Oxford, Oxford OX1 3RH, England
[2] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA
来源
PHYSICAL REVIEW D | 2007年 / 75卷 / 04期
关键词
D O I
10.1103/PhysRevD.75.044017
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
There is evidence that Newton and Einstein's theories of gravity cannot explain the dynamics of a universe made up solely of baryons and radiation. To be able to understand the properties of galaxies, clusters of galaxies and the universe on the whole it has become commonplace to invoke the presence of dark matter. An alternative approach is to modify the gravitational field equations to accommodate observations. We propose a new class of gravitational theories in which we add a new degree of freedom, the Aether, in the form of a vector field that is coupled covariantly, but nonminimally, with the space-time metric. We explore the Newtonian and non-Newtonian limits, discuss the conditions for these theories to be consistent and explore their effect on cosmology.
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页数:7
相关论文
共 47 条
[1]  
ANGUS GW, ASTROPH0609125, P84027
[2]   Could dark energy be vector-like? -: art. no. 007 [J].
Armendáriz-Picón, C .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2004, (07) :123-144
[3]  
BASSET B, 2000, PHYS REV D, V2, P4027
[4]   Modified Newtonian Dynamics habitats within the solar system [J].
Bekenstein, Jacob ;
Magueijo, Joao .
PHYSICAL REVIEW D, 2006, 73 (10)
[5]   Relativistic gravitation theory for the modified Newtonian dynamics paradigm [J].
Bekenstein, JD .
PHYSICAL REVIEW D, 2004, 70 (08)
[6]   Particle dark matter: evidence, candidates and constraints [J].
Bertone, G ;
Hooper, D ;
Silk, J .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2005, 405 (5-6) :279-390
[7]   Lorentz-violating vector fields slow the universe down [J].
Carroll, SM ;
Lim, EA .
PHYSICAL REVIEW D, 2004, 70 (12) :6
[8]  
CLAYTON M, GRQC014103, P84027
[9]  
CLOWE D, ASTROPH0608407
[10]   THE EVOLUTION OF LARGE-SCALE STRUCTURE IN A UNIVERSE DOMINATED BY COLD DARK MATTER [J].
DAVIS, M ;
EFSTATHIOU, G ;
FRENK, CS ;
WHITE, SDM .
ASTROPHYSICAL JOURNAL, 1985, 292 (02) :371-394