Scattering Transforms in astrophysics, application to components separation

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• Erwan Allys (ENS)
• Monday 02 October 2023, 13:00-14:00
• CMS, Pav. B, CTC Common Room (B1.19) [Potter Room].

If you have a question about this talk, please contact Inigo Zubeldia.

New statistical descriptions related to the so-called Scattering Transform recently obtained attractive results for several astrophysical applications. These statistics share ideas with convolutional neural networks, but do not require to be learned, allowing for very efficient characterization of non-Gaussian processes from a very small amount of data. In this talk, I will introduce these statistical descriptions, and give an overview of the different results they allowed to obtain recently. I will focus on ongoing work on non-Gaussian modeling and component separation directly from observational data, in the scientific context of CMB B -mode detection beyond Galactic foregrounds.

This talk is part of the Cosmology Lunch series.

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