Nonlinear evolution of dark matter and dark energy in the Chaplygin-gas cosmology

被引:46
作者
Bilic, N
Lindebaum, RJ
Tupper, GB
Viollier, RD
机构
[1] Rudjer Boskovic Inst, Zagreb 10002, Croatia
[2] Univ KwaZulu Natal, Sch Chem & Phys Sci, ZA-3209 Scottsville, South Africa
[3] Univ Cape Town, Dept Phys, Inst Theoret Phys & Astrophys, ZA-7701 Rondebosch, South Africa
来源
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2004年 / 11期
关键词
dark matter; dark energy theory; cosmology of theories beyond the SM;
D O I
10.1088/1475-7516/2004/11/008
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The hypothesis that dark matter and dark energy are unified through the Chaplygin gas, an exotic fluid obeying p = -A/rho, is re-examined. Using generalizations of the spherical model which incorporate effects of the acoustic horizon we show that an initially perturbative Chaplygin gas evolves into a mixed system containing cold dark matter-like gravitational condensate.
引用
收藏
页码:121 / 131
页数:11
相关论文
共 58 条
[1]  
ABRAMO LRW, 2003, COMMUNICATION
[2]   High-redshift objects and the generalized Chaplygin gas [J].
Alcaniz, JS ;
Jain, D ;
Dev, A .
PHYSICAL REVIEW D, 2003, 67 (04)
[3]   WMAP and the generalized Chaplygin gas [J].
Amendola, L ;
Finelli, F ;
Burigana, C ;
Carturan, D .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2003, (07) :71-84
[4]  
[Anonymous], GRQC0403062
[5]   GROWTH OF DENSITY INHOMOGENEITIES IN NEWTONIAN COSMOLOGICAL MODELS WITH VARIABLE-LAMBDA [J].
ARCURI, RC ;
WAGA, I .
PHYSICAL REVIEW D, 1994, 50 (04) :2928-2931
[6]   k-Inflation [J].
Armendáriz-Picón, C ;
Damour, T ;
Mukhanov, V .
PHYSICS LETTERS B, 1999, 458 (2-3) :209-218
[7]   Onset of the nonlinear regime in unified dark matter models -: art. no. 041301 [J].
Avelino, PP ;
Beça, LMG ;
de Carvalho, JPM ;
Martins, CJAP ;
Copeland, EJ .
PHYSICAL REVIEW D, 2004, 69 (04)
[8]   Alternatives to quintessence model building -: art. no. 023511 [J].
Avelino, PP ;
Beça, LMG ;
de Carvalho, JPM ;
Martins, CJAP ;
Pinto, P .
PHYSICAL REVIEW D, 2003, 67 (02)
[9]   THE STATISTICS OF PEAKS OF GAUSSIAN RANDOM-FIELDS [J].
BARDEEN, JM ;
BOND, JR ;
KAISER, N ;
SZALAY, AS .
ASTROPHYSICAL JOURNAL, 1986, 304 (01) :15-61
[10]   Are Chaplygin gases serious contenders for the dark energy?: art. no. 023515 [J].
Bean, R ;
Doré, O .
PHYSICAL REVIEW D, 2003, 68 (02)