Speaker
Matilde Barberi Squarotti
(Università degli Studi di Milano)
Description
Neutral hydrogen (HI) intensity mapping is arising as a novel probe of the Large Scale Structure of the Universe, and the MeerKAT radiotelescope is being used in the so called single-dish mode to test this technique as a precursor of the SKAO. These observations are characterised by a variety of systematics and astrophysical foregrounds that are much more intense than the cosmological signal and therefore limited the possibility to detect it. I will present the results of the analysis of the data taken during the MeerKAT 2021 observing season and I will show how, by means of internal cross-correlation, it is possible to mitigate the impact of systematics and reach a detection of the HI auto-power spectrum.
Primary author
Matilde Barberi Squarotti
(Università degli Studi di Milano)
