- I. Physics Institute, University of Cologne, Zülpicher Straße 77, 50937 Cologne & Max-Planck Insitute for Radio Astronomy, Auf dem Hügel 60, 53121 Bonn
- Argelander-Institute for Astronomy, Rheinische Friedrich-Wilhelms Universität Bonn, Auf dem Huegel 71, 53121 Bonn
- Argelander-Institute for Astronomy, Rheinische Friedrich-Wilhelms Universität Bonn, Auf dem Huegel 71, 53121 Bonn
- Argelander-Institute for Astronomy, Rheinische Friedrich-Wilhelms Universität Bonn, Auf dem Huegel 71, 53121 Bonn
- I. Physics Institute, University of Cologne, Zülpicher Str. 77, 50937 Cologne
- I. Physics Institute, University of Cologne, Zülpicher Str. 77, 50937 Cologne
- I. Physics Institute, University of Cologne, Zülpicher Str. 77, 50937 Cologne
Line intensity mapping (LIM) is a technique that measures aggregate integrated signal of unresolved galaxies over a wide area at low spatial resolution, thereby determining spatial signal fluctuations due to large-scale structure across cosmic time, and is the basis of one of CCAT’s large surveys (CCAT-Prime Collaboration et al. 2023 {link = https://iopscience.iop.org/article/10.3847/1538-4365/ac9838}). The goals of the deep spectroscopic survey (DSS) are to probe the epoch of reionization (EoR) using the redshifted emission line from carbon ions ([CII]) over two 4 deg^2 fields, as well as to study the peak epoch of star formation at lower redshifts using the emission lines from carbon monoxide (CO). This will be accomplished using the spectroscopic module (EoR-Spec) of the Prime-Cam instrument on the FYST. We are active and leading members of the science team of the CCAT line intensity mapping program where we predict the expected signal of each line and develop methodology to separate out the relevant components coming from different redshift along the line of sight (Karoumpis et al. 2022, 2024, Clarke et al. (2024).