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Dark Energy Constraints from the ESPRESSO Fundamental Physics GTO

A. C. O. Leite, C. J. A. P. Martins, P. Molaro, D. Corre

ESPRESSO is a high-resolution-ultra-stable spectrograph for the VLT, whose commissioning will start in early 2017. One of its key science drivers is to test the stability of fundamental couplings such as the fine structure constant with unprecedented accuracy and control of possible systematics. Specifically, a total of 27 nights of the ESPRESSO Consortium’s guaranteed time observations (GTO) will be spent in testing the stability of the fine-structure constant and other fundamental couplings. A set of 14 priority optimal targets have been selected for the GTO period. In this contribution I present the forecasts of the impact that observations will have on fundamental physics and cosmology, focusing on dark energy constraints and further discuss the synergies with future supernova type Ia surveys.

Proceedings of the 51st RENCONTRES DE MORIOND - Cosmology
Etienne Augé, Jacques Dumarchez, Jean Trân Thanh Vân

ARISF, Page 121
2016 March

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