6533b857fe1ef96bd12b4448

RESEARCH PRODUCT

Jet propagation through inhomogeneous media and shock ionization

Manel PeruchoVictoria ReynaldiA. LabianoA. LabianoJose López‐miralles

subject

PhysicsJet (fluid)HydrogenAstrophysics::High Energy Astrophysical PhenomenaInterstellar cloudchemistry.chemical_elementAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsGalaxyShock (mechanics)Computational physicsInterstellar mediumchemistrySpace and Planetary ScienceIonizationOutflowPhysics::Atomic PhysicsAstrophysics - High Energy Astrophysical PhenomenaAstrophysics::Galaxy Astrophysics

description

In this contribution we present the first numerical simulations of a relativistic outflow propagating through the inner hundreds of parsecs of its host galaxy, including atomic and ionised hydrogen, and the cooling effects of ionisation. Our results are preliminary, but we observe efficient shock ionization of atomic hydrogen in interstellar clouds. The mean density of the interstellar medium in these initial simulations is lower than that expected in typical galaxies, which makes cooling times longer and thus no recombination is observed inside the shocked region. The velocities achieved by the shocked gas in the simulations are in agreement with observational results, although with a wide spectrum of values.

10.1002/asna.20210051http://arxiv.org/abs/2109.15234