MIXED DARK-MATTER WITH NEUTRINO CHEMICAL-POTENTIALS

被引：18

作者：

LARSEN, GB ^{[1
]}

MADSEN, J ^{[1
]}

机构：

[1] AARHUS UNIV, INST PHYS & ASTRON, DK-8000 AARHUS C, DENMARK

来源：

PHYSICAL REVIEW D | 1995年 / 52卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.52.4282

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Mixed dark matter models with one low-mass (e.g., 2.4 eV) neutrino flavor are shown to be in good agreement with observations if the neutrinos have nonzero chemical potentials. This agreement holds (except for the problem with a low-age universe) even for high values of the Hubble parameter. Massless neutrinos with nonzero chemical potentials may reconcile cold dark matter with observations. Some fine-tuning is required to avoid problems with big bang nucleosynthesis.

引用

页码：4282 / 4286

页数：5

共 21 条

[1] THE COLLISIONLESS DAMPING OF DENSITY-FLUCTUATIONS IN AN EXPANDING UNIVERSE [J].

BOND, JR ;

SZALAY, AS .

ASTROPHYSICAL JOURNAL, 1983, 274 (02) :443-468

[2] NEUTRINO OSCILLATIONS AND MIXED DARK-MATTER [J].

CALDWELL, DO .

NUCLEAR PHYSICS B, 1995, :126-132

[3] IS A MASSIVE TAU-NEUTRINO JUST WHAT COLD DARK-MATTER NEEDS [J].

DODELSON, S ;

GYUK, G ;

TURNER, MS .

PHYSICAL REVIEW LETTERS, 1994, 72 (24) :3754-3757

[4] DISTANCE TO THE VIRGO CLUSTER GALAXY M100 FROM HUBBLE-SPACE-TELESCOPE OBSERVATIONS OF CEPHEIDS [J].

FREEDMAN, WL ;

MADORE, BF ;

MOULD, JR ;

HILL, R ;

FERRARESE, L ;

KENNICUTT, RC ;

SAHA, A ;

STETSON, PB ;

GRAHAM, JA ;

FORD, H ;

HOESSEL, JG ;

HUCHRA, J ;

HUGHES, SM ;

ILLINGWORTH, GD .

NATURE, 1994, 371 (6500) :757-762

[5] MASSIVE, DEGENERATE NEUTRINOS AND COSMOLOGY [J].

FREESE, K ;

KOLB, EW ;

TURNER, MS .

PHYSICAL REVIEW D, 1983, 27 (08) :1689-1695

[6] CONSTRAINTS ON MODELS OF GALAXY FORMATION FROM THE EVOLUTION OF DAMPED LYMAN-ALPHA ABSORPTION SYSTEMS [J].

KAUFFMANN, G ;

CHARLOT, S .

ASTROPHYSICAL JOURNAL, 1994, 430 (02) :L97-L100

[7] STRUCTURE FORMATION WITH COLD PLUS HOT DARK-MATTER [J].

KLYPIN, A ;

HOLTZMAN, J ;

PRIMACK, J ;

REGOS, E .

ASTROPHYSICAL JOURNAL, 1993, 416 (01) :1-16

[8] DAMPED LYMAN-ALPHA SYSTEMS VERSUS COLD PLUS HOT DARK-MATTER [J].

KLYPIN, A ;

BORGANI, S ;

HOLTZMAN, J ;

PRIMACK, J .

ASTROPHYSICAL JOURNAL, 1995, 444 (01) :1-14

[9] EVOLUTION OF THE GASEOUS CONTENT OF THE UNIVERSE [J].

LANZETTA, KM .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1993, 105 (691) :1063-1069

[10] NEUTRINO OSCILLATION STUDIES AT LAMPF [J].

LOUIS, WC .

NUCLEAR PHYSICS B, 1995, :229-234

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