Speaker
Description
Neutral hydrogen (HI) intensity mapping makes it possible to
probe large volumes of the Universe. Since fluctuations of HI are a tracer for dark matter fluctuations, we can reconstruct the dark matter density field from HI intensity mapping. For HI intensity mapping systematics are a significant concern, therefore we need simulations to get a good understanding of their effects on the data. We are developing a simulation pipeline for interferometric intensity mapping with MeerKAT and SKA Mid. For that we use a sky catalog simulated by PINOCCHIO showing the HI intensity distribution. With Karabo we reconstruct the images we would get from an observation of line emission. This results in a three-dimensional HI intensity map which can be used to study
intermediate cosmological scales.
