Speaker
Description
The intense star-forming activity typical of star-forming galaxies results in unique conditions for the acceleration of high-energy particles.
The enhanced supernova rate associated with such star formation can in fact transfer a large amount of power to non-thermal particles which,
in turn, can lose most of their energy in the dense and perturbed star-forming environment before being able to escape it.
I will discuss the transport conditions in these galaxies and their multi-messenger implications in terms of gamma rays and high-energy neutrinos.
The star-forming activity can also launch and sustain powerful galactic wind bubbles extending for several kiloparsecs.
I will illustrate how particles can be accelerated up to hundreds of PeV at shocks produced in such winds and I will highlight the associated high-energy radiation and its possible detectability with current and upcoming observatories.
Finally, by taking into account the star formation history of the Universe, I will assess the potential contribution of star-forming galaxies to the observed diffuse flux of gamma rays, high-energy neutrinos and cosmic rays at energies beyond the Knee.
