The Third National Workshop on the SKA Project - The Italian Route to the SKAO Revolution

Session

Cosmology

Session 3

Oct 5, 2021, 12:20 PM

Virtual

Presentation materials

Recording

3. Intensity Mapping in the post-reionization era

Prof. Viel Matteo

10/5/21, 12:20 PM

I will review the theoretical challenges to model the HI content in the post-reionization universe. I will address both astrophysical and cosmological questions that can be addressed by exploiting the 21 cm signal with SKA.

14. Blind Foreground Subtraction Challenge for SKAO HI Intensity Mapping: methods used and perspectives

Isabella Paola Carucci

10/5/21, 12:40 PM

HI Intensity Mapping (IM) surveys with the telescopes (and precursors) of the SKA Observatory are a promising, independent, and insightful way of studying the large-scale of the Universe. However, strong astrophysical foregrounds contaminate the signal, and their coupling with instrumental systematics further increases the complexity of the data cleaning. As an effort of the HI IM Focus Group...

32. Multiwavelength Cosmology with SKAO

Mario Ballardini (Istituto Nazionale di Astrofisica (INAF))

10/5/21, 2:30 PM

I will discuss the cosmological constraints from the combination and cross-correlation of radio, optical, and microwave cosmological observations in order to obtain precise measurements of perturbations on large scales.
Specifically I will show that a conservative combination of an SKAO-MID HI intensity mapping survey with the galaxy clustering from two photometric galaxy surveys (Euclid-...

30. RadioLensfit: an HPC Tool for Accurate Galaxy Shape Measurement with SKA

Dr Marzia Rivi (Istituto Nazionale di Astrofisica (INAF))

10/5/21, 2:50 PM

The new generation radio telescopes, such as the Square Kilometre Array (SKA), are expected to reach sufficient sensitivity and resolution to provide large number densities of resolved faint sources, and therefore to open weak gravitational lensing observations to the radio band. In this talk I will present RadioLensfit, an open-source tool for an efficient and fast galaxy shape measurement...