27 November 2023 to 1 December 2023
Universita' di Catania, Dipartimento di Fisica
Europe/Rome timezone

HI Galaxy Science with SKA and Pathfinders

28 Nov 2023, 10:00
30m
Aula Magna (Universita' di Catania, Dipartimento di Fisica)

Aula Magna

Universita' di Catania, Dipartimento di Fisica

The meeting will be held at the Department of Physics of the University of Catania, which is located in Via S. Sofia 64, Catania. The plenary sessions will be held in the Aula Magna of the Department. Further details on the exact location of the parallel sessions will be communicated closer to the meeting.

Speaker

Federico Lelli (Istituto Nazionale di Astrofisica (INAF))

Description

The 21-cm line of atomic hydrogen (HI) is a key tool to study multiple aspects of galaxy formation and evolution in a cosmological context. Atomic hydrogen, indeed, dominates the mass budget of the interstellar medium and is the main reservoir for star formation in galaxies. I will review recent results from ongoing HI surveys with SKA pathfinders and discuss future exciting prospects with SKA-mid. In particular, I will focus on (1) HI content, morphology, and kinematics in different types of galaxies, (2) processes of gas accretion, gas depletion, and gas removal, which are intimately linked with galaxy morphological transformations, (3) rotation curves and mass models of galaxies, which provide key testbeds for dark matter models and alternative gravitational theories.

Reasearch area HI galaxy science

Primary author

Federico Lelli (Istituto Nazionale di Astrofisica (INAF))

Presentation materials