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Cited by 353

The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.

Thermal condensation in a turbulent atomic hydrogen flow

Open access
Audit, E., Hennebelle, P.·2005·Astronomy & Astrophysics
DOI 10.1051/0004-6361:20041474
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Abstract

We present a numerical and analytical study of the thermal fragmentation of a turbulent flow of interstellar hydrogen. We first present the different dynamical processes and the large range of spatial (and temporal) scales that need to be adequately represented in numerical simulations. Next, we present bidimensional simulations of turbulent converging flows which induce the dynamical condensation of the warm neutral phase into the cold phase. We then analyse the cold structures and the fraction of unstable gas in each simulation, paying particular attention to the influence of the degree of turbulence. When the flow is very turbulent a large fraction of the gas remains in the thermally unstable domain. This unstable gas forms a filamentary network. We show that the fraction of thermally unstable gas is strongly correlated with the level of turbulence of the flow. We then develop a semi-analytical model to explain the origin of this unstable gas. This simple model is able to quantitatively reproduce the fraction of unstable gas observed in the simulations and its correlation with turbulence. Finally, we stress the fact that even when the flow is very turbulent and in spite of the fact that a large fraction of the gas is maintained dynamically in the thermally unstable domain, the classical picture of a 2-phase medium with stiff thermal fronts and local pressure equilibrium turns out to be still relevant in the vicinity of the cold structures.

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Metadata

Authors
Audit, E., & Hennebelle, P.
Venue
Astronomy & Astrophysics
Publisher
EDP Sciences
Published
2005-03-14
Volume
433
Issue
1
Pages
1-13
ISSN
  • 0004-6361 (ISSN-L)
  • 1432-0746
DOI
10.1051/0004-6361:20041474
OpenAlex
W2951458773
Cited by
353
References
23
FWCI
13.27
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Thermal condensation in a turbulent atomic hydrogen flow. https://app.cochat.ai/papers/10.1051/0004-6361:20041474
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Audit, E., & Hennebelle, P. (2005). Thermal condensation in a turbulent atomic hydrogen flow. Astronomy & Astrophysics. https://doi.org/10.1051/0004-6361%3A20041474

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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