Seminario di Dipartimento virtuale: BeyondPlanck: a Bayesian framework for end-to-end Cosmic Microwave Background analysis.
SEMINARIO DIPARTIMENTO DI FISICA, VIA CELORIA 16, MILANO
Aula Consiglio VIRTUALE
27 Gennaio 2021 – 14:30
Dipartimento di Fisica, Università di Milano
BeyondPlanck: a Bayesian framework for end-to-end Cosmic Microwave Background analysis.
The Cosmic Microwave Background (CMB) is a fundamental probe of the early Universe, and played a key role in shaping the current cosmological model.
State-ofthe-art measurements have been performed by the Planck observatory, which operated at the Sun-Earth L2 point between 2009 and 2013, significantly improving
our understanding of both the early stages of the Universe and of astrophysical emission from our Galaxy.
Planck data opened a new epoch of CMB experiments, in which observations are no longer limited by instrumental noise, but by our knowledge of instrumental systematics and of the sky itself.
In this talk I will describe the BeyondPlanck project, the first fully Bayesian end-to-end CMB analysis framework.
BeyondPlanck efficiently explores the joint posterior probability distribution of all parameters of interests (instrumental, astrophysical, cosmological), allowing a self consistent
propagation of all sources of error to the final science constraints. I will also present the first BeyondPlanck results, based on Planck Low Frequency Instrument data.
Students are cordially invited – Contact email@example.com