Séminaire Univers / |
| « Translating pixels into cosmology for Kilo Degree Survey -1000 » |
|
Angus H. Wright |
| Robust measurement of cosmological parameters using cosmic-shear requires carefully translating pixelised information into cosmological signals. As with all modern cosmology, this process requires careful consideration of a multitude of systematic effects. I will overview the considerable effort that has been invested into the understanding, modelling, and mitigation of systematics effects in KiDS-1000 cosmic shear analysis, with a particular focus on the calibration of galaxy redshift distributions; arguably the most uncertain and influential systematic effect present in stage-III cosmic shear surveys. |
|
mardi 3 novembre 2020 - 11:15 Webinaire Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |