Work

Probing dark energy with redshift drift

Year: 2012

Type: article

Abstract: Future redshift-drift measurements (also known as the Sandage-Loeb signal) will be crucial to probe the so called ``redshift desert,'' thus providing a new tool for cosmological studies. In this paper we quantify the ability of a future measurement of the Sandage-Loeb signal by a Cosmic-Dynamics-Experiment-like spectrograph to constrain a phenomenological parametrization of dynamical dark energy, specifically by obtaining constraints on ${w}_{0}$ and ${w}_{a}$. We also demonstrate that if used alongside CMB data, the Sandage-Loeb measurements will be able to break degeneracies between expansion parameters, thus greatly improving cosmological constraints.

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

DOI: 10.1103/physrevd.86.123001

Authors: Matteo Martinelli, Stefania Pandolfi, C. J. A. P. Martins, P. E. Vielzeuf

Institutions: Scuola Internazionale Superiore di Studi Avanzati, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, University of Copenhagen, Universidade do Porto, Centro de Astrofísica da Universidade do Porto, Université Toulouse III - Paul Sabatier

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2015155466

FWCI: 2.844

Cites: 20

Cited by: 44

Related to: 10