Quintessence and the separation of cosmic microwave background peaks

被引：103

作者：

Doran, M ^{[1
]}

Lilley, M ^{[1
]}

Schwindt, J ^{[1
]}

Wetterich, C ^{[1
]}

机构：

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

来源：

ASTROPHYSICAL JOURNAL | 2001年 / 559卷 / 02期

关键词：

cosmic microwave background; cosmology : theory;

D O I：

10.1086/322253

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose that it should be possible to use the cosmic microwave background (CMB) to discriminate between dark energy models with different equations of state, which includes distinguishing a cosmological constant from many models of quintessence. The separation of peaks in the CMB anisotropies can be parametrized by three quantities : the amount of quintessence today, the amount at last scattering, and the averaged equation of state of quintessence. In particular, we show that CMB peaks can be used to measure the amount of dark energy present before last scattering.

引用

页码：501 / 506

页数：6

共 21 条

[1] Perturbations in a coupled scalar field cosmology [J].

Amendola, L .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 312 (03) :521-530

[2] Nucleosynthesis bounds on a time-varying cosmological 'constant' [J].

Birkel, M ;

Sarkar, S .

ASTROPARTICLE PHYSICS, 1997, 6 (02) :197-203

[3] Exhaustive study of cosmic microwave background anisotropies in quintessential scenarios [J].

Brax, P ;

Martin, J ;

Riazuelo, A .

PHYSICAL REVIEW D, 2000, 62 (10) :1-16

[4] Cosmological imprint of an energy component with general equation of state [J].

Caldwell, RR ;

Dave, R ;

Steinhardt, PJ .

PHYSICAL REVIEW LETTERS, 1998, 80 (08) :1582-1585

[5] Dynamical Lambda models of structure formation [J].

Coble, K ;

Dodelson, S ;

Frieman, JA .

PHYSICAL REVIEW D, 1997, 55 (04) :1851-1859

[6] A flat Universe from high-resolution maps of the cosmic microwave background radiation [J].

de Bernardis, P ;

Ade, PAR ;

Bock, JJ ;

Bond, JR ;

Borrill, J ;

Boscaleri, A ;

Coble, K ;

Crill, BP ;

De Gasperis, G ;

Farese, PC ;

Ferreira, PG ;

Ganga, K ;

Giacometti, M ;

Hivon, E ;

Hristov, VV ;

Iacoangeli, A ;

Jaffe, AH ;

Lange, AE ;

Martinis, L ;

Masi, S ;

Mason, PV ;

Mauskopf, PD ;

Melchiorri, A ;

Miglio, L ;

Montroy, T ;

Netterfield, CB ;

Pascale, E ;

Piacentini, F ;

Pogosyan, D ;

Prunet, S ;

Rao, S ;

Romeo, G ;

Ruhl, JE ;

Scaramuzzi, F ;

Sforna, D ;

Vittorio, N .

NATURE, 2000, 404 (6781) :955-959

[7]

DORAN M, 2001, ASTROPH0104486

[8] Constraining the equation of state of the Universe from distant Type Ia supernovae and cosmic microwave background anisotropies [J].

Efstathiou, G .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 310 (03) :842-850

[9] Structure formation with a self-tuning scalar field [J].

Ferreira, PG ;

Joyce, M .

PHYSICAL REVIEW LETTERS, 1997, 79 (24) :4740-4743

[10] Cosmology with a primordial scaling field [J].

Ferreira, PG ;

Joyce, M .

PHYSICAL REVIEW D, 1998, 58 (02) :23

← 1 2 3 →