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Forecasts of differential redshift drift on cosmological parameters

Joshua Esteves
U. Montpellier

A new generation of facilities will allow the use of new probes to explore the Universe, like the redshift drift. We focus on forecasting the constraints on cosmological parameters obtained by using a difference between redshift drifts which could be used to improve the spectroscopic signal of the redshift drift as explained in a paper by Cooke (2020). We will first elaborate on what is the redshift drift, what method is used to forecast the uncertainties on the cosmological parameters and finally present the results. We find that the choice of redshifts that maximizes the signal does not minimize the marginalized uncertainties on key cosmological parameters.

2020 July 02, 13:30

Online broadcast (Zoom)

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia