APEC Seminar (Astronomy - Particle Physics - Experimental Physics - Cosmology)

Speaker: Boris Leistedt (NYU)
Title: From Precision to Accuracy: cosmology with large imaging surveys
Date (JST): Thu, Apr 13, 2017, 13:30 - 14:30
Place: Seminar Room A
Related File: 1833.pdf
Abstract: I will give an overview of the formidable science that can be achieved with modern photometric galaxy surveys, and also discuss the challenges that must be overcome in order to fully exploit these large data sets. I will present some of the latest results from the Dark Energy Survey (DES), and highlight the great opportunities that will come with the LSST. Finally, I will showcase some of the most advanced statistical methods used to analyze these surveys. I will present a new approach for robustly estimating photometric redshifts and their probability distributions even in the presence of limited, highly heterogeneous spectroscopic training data.