Beschreibung
Line intensity mapping (LIM) is emerging as a powerful observational technique to study the large-scale structure across an unprecedented range of cosmic history. By measuring the integrated emission from entire galaxy populations rather than resolving individual sources, LIM complements traditional galaxy surveys and provides a unique view of the Cosmic Web from the nearby Universe to Cosmic Dawn.
In this talk, I will highlight the unique role of LIM during the Epoch of Reionization, where it simultaneously probes the underlying cosmological density field and the astrophysics of the first sources. I will discuss the scientific opportunities offered by multi-line observations and highlight how cross-correlations with different tracers can reveal the emergence and evolution of the earliest galaxies, as well as provide new tests of cosmology beyond the standard model. With a new generation of ground- and space-based instruments beginning to deliver data, LIM is set to become a key probe of the Cosmic Web across cosmic time.