Jessica Santiago (AUTh) - Multipoles in the deceleration parameter: a comparison between different approaches

When: Wednesday, May 3, 2023, 3:30 PM - 5:00 PM
Where: Physics (G. O. Jones building) Room 516 & online, Mile End

Speaker: Jessica Santiago (AUTh)

Given the exponential growth on the upcoming supernovae data available, the possibilities of rigorously testing the cosmological principle becomes ever more real. One of the ways to do so, is by measuring the multipole decomposition of the Hubble and deceleration parameters. In this talk, I will show how the theoretical possibilities to define the latter are not unique, discuss the physical differences between them and which one we should use when analyzing data.