Cosmology with LSST: Modelling the Systematics

by Ms Nikolina Sarcevic (Newcastle University)

Thursday 18 Aug 2022, 15:00 → 16:00 US/Eastern

Small seminar room (Building 510)

LSST will provide an unprecedented wealth of astronomical data, with which we will be able to tightly constrain the values of the parameters of our cosmological model, notably those which describe the poorly understood dark energy component. As weak lensing and galaxy clustering measurements provide a way to infer key cosmological quantities such as the dark matter distribution, the evolution of cosmic structure, and the expansion history of the Universe, detailed and rigorous analysis is necessary in order to glean as much information as possible from LSST measurements. The aim of this talk is to try to explain, in simple terms, how we extract the cosmological information from a photometric survey such as LSST, including a brief overview of the LSST pipeline and highlight several steps that are directly connected to the research being conducted at Newcastle university and as part of the LSST Dark Energy Science Collaboration (DESC).

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