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.
|Number of pages||5|
|Journal||Astrophysics and Space Science Proceedings|
|State||Published - 2009|
|Event||Workshop on Science with the VLT in the ELT Era, 2007 - Garching, Germany|
Duration: 8 Oct 2007 → 12 Oct 2007