Gravitational instability in an. cap omega. /sub 0/ = 1, four-component universe

Journal Article · Sun Dec 15 04:00:00 EST 1985 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/163725· OSTI ID:5939560

Achilli, S; Occhionero, F; Scaramella, R

We evaluate numerically the linear adiabatic modes in an ..cap omega../sub 0/ = 1 universe containing, in addition to baryonic matter (BM) and radiation, two forms of dark matter, one cold and one hot (CDM and HDM); the latter is assumed to consist of light massive neutrinos. Thence we derive the evolution in time of the mass variance as a function of the parameters of interest, and we estimate which mass goes nonlinear and when.

• Research Organization: Istituto Astronomico, Universita di Roma I
• OSTI ID: 5939560
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 299:2; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BARYONS
COSMOLOGICAL MODELS
ELEMENTARY PARTICLES
FERMIONS
FUNDAMENTAL CONSTANTS
GALACTIC EVOLUTION
GRAVITATIONAL INSTABILITY
HADRONS
INSTABILITY
LEPTONS
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATHEMATICS
NEUTRINOS
NUMERICAL ANALYSIS
PLASMA INSTABILITY
RED SHIFT
UNIVERSE