SPOTLIGHT TALK – 06/06/2024

The Warsaw Doctoral School in Natural and Biomedical Sciences and the Center for Theoretical Physics PAS cordially invites you to a SPOTLIGHT TALK.

The talk is given by prof. Adi Nusser (Technion University Haifa, Israel).

All Warsaw-4-Phd students (and others) are very welcome!

When and where?

6th June 2024, 5:00 pm
at the Center for Theoretical Physics PAS, al. Lotników 32/46, Auditorium Duration: 90+ min

Abstract

Galaxies form at the peaks of the dark matter density fields, and as such, their spatial distribution is correlated with the dark matter density field, albeit not in a straightforward relationship. In contrast, by virtue of the equivalence principle, galaxy peculiar motions (deviations from a pure Hubble flow) faithfully trace the dark matter flow across large scales, away from regions affected by stellar and AGN feedback (such as supernova explosions and the ejection of energy via accretion onto galactic supermassive black holes).
The lecture will focus on the challenges in extracting cosmological information on the nature of dark matter, dark energy, and the fundamental theory of gravity from observations of the galaxy distribution and peculiar motions in the late Universe (within a few hundred Megaparsecs from us). It will review a few of the key analysis methods developed over the years and delve into the use of AI/ML, addressing the question of whether this methodology will eventually replace previous tools.

This event is supported by the Polish National Agency for Academic Exchange, grant no. BPI/STE/2021/1/00034/U/00001.