Galaxy clustering analyses with the photometric sample of the Euclid mission

Marzo 28, 2022
De 3:00pm hasta 4:00pm

Online on Zoom

Theoretical Physics, general interest
Isaac Tutusaus
Université de Genève

Online on Zoom


Galaxy clustering analyses are usually performed with samples including spectroscopic estimates of the redshifts. These precise estimates allow us to study the clustering of galaxies in three dimensions. However, state-of-the-art measurements have shown that significant information can be extracted from galaxy clustering analyses using photometric redshift. Although some radial information is lost, the large amount of objects still enable us to extract useful information from this probe. In this talk I will present recent forecasts produced within the Euclid Consortium and focused on quantifying the constraining power of this cosmological probe for the future Euclid data. I will also detail the first steps towards an optimization of the Euclid photometric sample in order to increase the constraining power of galaxy clustering and complement the other main cosmological probes. I will end by discussing some of the remaining challenges to include this probe in a joint analysis.

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