Work

New cosmological model of quintessence and dark matter

Year: 2000

Type: article

Abstract: We propose a new class of quintessence models in which late times oscillations of a scalar field give rise to an effective equation of state which can be negative and hence drive the observed acceleration of the universe. Our ansatz also describes a new form of dark matter which we call frustrated cold dark matter (FCDM). FCDM inhibits gravitational clustering on small scales and could provide a natural resolution to the core density problem for disk galaxy halos.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.62.103517

Authors: Varun Sahni, Limin Wang

Institutions: Inter-University Centre for Astronomy and Astrophysics, Columbia University

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1992347118

FWCI: 16.43

Cites: 28

Cited by: 579

Related to: 9