Confrontation of a Double Inflationary Cosmological Model with Observations

Abstract

CDM models with non-scale-free step-like spectra of adiabatic perturbations produced in a realistic double inflationary model are compared with recent observational data. The model contains two additional free parameters relatively to the standard CDM model with the flat ($n=1$) initial spectrum. Results of the COBE experiment are used for the determination of a free overall spectrum normalization. Then predictions for the galaxy biasing parameter, the variance for "counts in cells", the galaxy angular correlation function, bulk flow peculiar velocities and the Mach number test are obtained. Also considered are conditions for galaxy and quasar formation. Observational data strongly restricts allowed values for the two remaining model parameters. However, a non-empty region for them satisfying all considered tests is found.

17 pages and 4 figures obtainable by request, LaTex, AIP 93-11

Cited by in corpus (26)

• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• Chaotic new inflation and formation of primordial black holes
• Perturbations in a coupled scalar field cosmology
• On the APM power spectrum and the CMB anisotropy: Evidence for a phase transition during inflation?
• Structure of Primordial Gravitational Waves Spectrum in a Double Inflationary Model
• Constraining cosmological models with cluster power spectra
• Features in the primordial power spectrum of double D-term inflation
• Natural Double Inflation in Supergravity
• Pre-Inflationary Bounce Effects on Primordial Gravitational Waves of $f(R)$ Gravity
• Double Inflation in Supergravity and the Large Scale Structure
• Cosmological attractor inflation from the RG-improved Higgs sector of finite gauge theory
• Constraints in the Context of Induced-gravity Inflation
• Density Fluctuations and Primordial Black Hole Formation in Natural Double Inflation in Supergravity
• Superpotential method for chiral cosmological models connected with modified gravity
• Superlarge-Scale Structure in N-body Simulations
• Primordial black holes under the double inflationary power spectrum
• Running of the Spectral Index and Inflationary Dynamics of $F(R)$ Gravity
• Statistical Tests for CHDM and \LambdaCDM Cosmologies
• Integrable modified gravity cosmological models with an additional scalar field
• Superpotential method for $F(R)$ cosmological models
• ${\mathcal{R}}^2$ Quantum Corrected Scalar Field Inflation
• CMB anisotropy predictions for a model of double inflation
• Inflation and the dwarf galaxy problem
• Observational Matter Power Spectrum and the Height of the Second Acoustic Peak
• Inflation without inflatons
• The Primordial Perturbation Spectrum and Large Scale Structure