Primordial black hole constraints in cosmologies with early matter domination

被引:31
作者
Green, AM [1 ]
Liddle, AR
Riotto, A
机构
[1] Univ Sussex, Ctr Astron, Brighton BN1 9QH, E Sussex, England
[2] NASA, Fermilab Astrophys Ctr, Fermi Natl Accelerator Lab, Batavia, IL 60510 USA
来源
PHYSICAL REVIEW D | 1997年 / 56卷 / 12期
关键词
D O I
10.1103/PhysRevD.56.7559
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Moduli fields. a natural prediction of any supergravity and superstring-inspired supersymmetry theory. may lead to a prolonged period of matter domination in the early universe. This can be observationally viable provided the moduli decay early enough to avoid harming nucleosynthesis. If primordial black holes form, they would be expected to do so before or during this matter-dominated era. We examine the extent to which the standard primordial black hole constraints are weakened in such a cosmology. Permitted mass fractions of black holes at formation are of order 10(-8), rather than the usual 10(-20) or so. If the black holes form from density perturbations with a power-law spectrum, its spectral index is limited to n less than or similar to 1.3, rather than the n less than or similar to 1.25 obtained in the standard cosmology. [S0556-2821(97)03424-3].
引用
收藏
页码:7559 / 7565
页数:7
相关论文
共 41 条
[1]  
[Anonymous], 1985, SVPHU, DOI DOI 10.1070/PU1985V028N03ABEH003858
[2]  
ANTONIADIS I, 1997, SUSY97 C U PENNS PHI
[3]   COSMOLOGICAL IMPLICATIONS OF DYNAMICAL SUPERSYMMETRY BREAKING [J].
BANKS, T ;
KAPLAN, DB ;
NELSON, AE .
PHYSICAL REVIEW D, 1994, 49 (02) :779-787
[4]   COSMOLOGICAL MODULI PROBLEM, SUPERSYMMETRY BREAKING, AND STABILITY IN POSTINFLATIONARY COSMOLOGY [J].
BANKS, T ;
BERKOOZ, M ;
STEINHARDT, PJ .
PHYSICAL REVIEW D, 1995, 52 (02) :705-716
[5]  
BANKS T, SCIP9631
[6]   PRIMORDIAL DENSITY-FLUCTUATIONS AND THE MICROWAVE BACKGROUND SPECTRUM [J].
BARROW, JD ;
COLES, P .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1991, 248 (01) :52-57
[7]   THE COSMOLOGY OF BLACK-HOLE RELICS [J].
BARROW, JD ;
COPELAND, EJ ;
LIDDLE, AR .
PHYSICAL REVIEW D, 1992, 46 (02) :645-657
[8]   ONE-SCALE SUPERSYMMETRIC INFLATIONARY MODELS [J].
BERTOLAMI, O ;
ROSS, GG .
PHYSICS LETTERS B, 1986, 171 (01) :46-63
[9]  
BINETRUY P, LBNL39744
[10]   Non-Gaussian fluctuations and primordial black holes from inflation [J].
Bullock, JS ;
Primack, JR .
PHYSICAL REVIEW D, 1997, 55 (12) :7423-7439