InterGalactic Filaments First steps to understand formation structure dynamics and stability of a key supplier of gas to galaxies

by Nicolas Cornault

at Astrophysics and Cosmology Seminar

Wed, 30 May 2018, 11:15
Physics building (#54) room 207

Abstract

Cosmological numerical simulations produce artificial universes wherein matter is at the largest scales distributed so as to form a self similar network The nodes of the latter are denser than the arcs or filaments themselves at the crossing of the walls bounding voids At typical intergalactic distances gas physics begin to play a role alongside gravitation In the frame of a given galactic halo they represent the most long lived strong anisotropies in its environment The core of IGFs lose enough entropy to give rise to the so called cold streams supplying cold gas to galaxies therefore providing a leading source term to galactic star formation How do these out of equlibrium and transient structures form What are their physical properties how are these structured and how do they evolve These are questions of high importance to the field of galaxy evolution We will present first results towards a more complete picture expected to sit at the core of future galactic studies

Created on 28-05-2018 by Bar Lev, Yevgeny (ybarlev)
Updaded on 28-05-2018 by Bar Lev, Yevgeny (ybarlev)