Presented By: Department of Physics
Special Cosmology Seminar | Photo-z’s and Cosmology From Weak Lensing Cross-Correlations in DES
Judit Prat, Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology
In this talk I will explain how we can use weak lensing cross-correlations, in particular galaxy-galaxy lensing, to constrain the redshift distributions of the source galaxies. I will present the results obtained using this technique on DES Y1 data. Also, I will describe how using a similar method but now including CMB lensing cross-correlations we can constrain cosmological parameters, using SPT and Planck data.
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