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The Cosmic Infrared Background: a tool and a nuisance for cosmology & galaxy evolution

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If you have a question about this talk, please contact Inigo Zubeldia .

The Cosmic Infrared Background (CIB) spans a wide range of redshifts. Its measurements are thus a powerful tool to map the star formation at high redshifts and connect the host dark matter halos with the galaxies residing in them. Also, in cross-correlation with the cosmic microwave background (CMB) and galaxies, CIB acts as a cosmological observable. Despite being an excellent astrophysical and cosmological probe, CIB acts as a foreground for the CMB and line intensity mapping studies. In this talk, I will explore both these sides and present a couple of novel ways the CIB can act as a cosmological tool and a foreground. Finally, I will also present a new estimator for detecting the screening of the CMB by the large-scale structure which might provide us with a first-ever detection of this effect.

This talk is part of the Cosmology Lunch series.

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Lord Colyton Hall, Gonville & Caius College Faculty of Education, 184 Hills Road CB2 8PQ Room GS5 INI IT Office

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