Analytical treatment of small scales matter power spectrum in coupled scalar field (CSF) cosmology
| Autor: | Fargiza A. M. Mulki, H. R. T. Wulandari |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Coupling constant
Physics 010308 nuclear & particles physics Matter power spectrum QC1-999 Dark matter Perturbation (astronomy) Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences Cosmology Quantum electrodynamics 0103 physical sciences Dark energy 010303 astronomy & astrophysics Scalar field Quintessence |
| Zdroj: | EPJ Web of Conferences, Vol 240, p 02003 (2020) |
| Popis: | In this paper, we reconstruct matter power spectrum of a cosmological model in which coupled scalar field acts as dark energy. The coupled scalar field (CSF) dark energy we propose here is a generalized model of quintessence, k-essence or phantom coupled to dark matter (non-baryonic matter) via a coupling constant. The existence of coupling between dark energy and matter allows energy to transfer between them, which may give rise to different observational signatures, especially at perturbation level, including matter power spectrum. In this work, through analytical exploration we studied that possible signature in matter power spectrum that maybe induced by this mode. |
| Databáze: | OpenAIRE |
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