From Espresso to Codex
J. Liske, L. Pasquini, P. Bonifacio, F. Bouchy, R.F. Carswell, S., Cristiani, M. Dessauges, S. D'Odorico, V. D'Odorico, A. Grazian, R., Garcia-Lopez, M. Haehnelt, G. Israelian, C. Lovis, E. Martin, M. Mayor, P., Molaro, M.T. Murphy, F. Pepe, D. Queloz, R. Rebolo, S. Udry
TL;DR
This paper discusses the roles of ESPRESSO and CODEX spectrographs in advancing high-resolution astronomical observations, emphasizing ESPRESSO's contribution as a precursor to CODEX in studying cosmic expansion.
Contribution
It highlights how ESPRESSO serves as a technical and scientific stepping stone towards the development and scientific goals of CODEX.
Findings
ESPRESSO will facilitate the development of CODEX technology.
ESPRESSO will contribute to understanding cosmic expansion.
The paper emphasizes the complementary roles of both instruments.
Abstract
CODEX and ESPRESSO are concepts for ultra-stable, high-resolution spectrographs at the E-ELT and VLT, respectively. Both instruments are well motivated by distinct sets of science drivers. However, ESPRESSO will also be a stepping stone towards CODEX both in a scientific as well as in a technical sense. Here we discuss this role of ESPRESSO with respect to one of the most exciting CODEX science cases, i.e. the dynamical determination of the cosmic expansion history.
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