Jet propagation through inhomogeneous media and shock ionization

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 io...

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Bibliographic Details
Published in:arXiv.org 2021-09
Main Authors: Perucho, Manel, López-Miralles, José, Reynaldi, Victoria, Labiano, Álvaro
Format: Article
Language:English
Subjects:
Cooling effects
Galaxies
Inhomogeneous media
Interstellar matter
Ionization
Simulation
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.2109.15234