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Supernovae feedback propagation: the role of turbulence

Ohlin, Loke ; Renaud, Florent LU and Agertz, Oscar LU (2019) In Monthly Notices of the Royal Astronomical Society 485(3). p.3887-3894
Abstract
Modelling the propagation of supernova (SN) bubbles, in terms of energy, momentum, and spatial extent, is critical for simulations of galaxy evolution which do not capture these scales. To date, small-scale models of SN feedback predict that the evolution of above-mentioned quantities can be solely parametrized by average quantities of the surrounding gas, such as density. However, most of these studies neglect the turbulent motions of this medium. In this paper, we study the propagation and evolution of SNe in turbulent environments. We confirm that the time evolution of injected energy and momentum can be characterized by the average density. However, the details of the density structure of the interstellar medium play a crucial role in... (More)
Modelling the propagation of supernova (SN) bubbles, in terms of energy, momentum, and spatial extent, is critical for simulations of galaxy evolution which do not capture these scales. To date, small-scale models of SN feedback predict that the evolution of above-mentioned quantities can be solely parametrized by average quantities of the surrounding gas, such as density. However, most of these studies neglect the turbulent motions of this medium. In this paper, we study the propagation and evolution of SNe in turbulent environments. We confirm that the time evolution of injected energy and momentum can be characterized by the average density. However, the details of the density structure of the interstellar medium play a crucial role in the spatial extent of the bubble, even at a given average density. We demonstrate that spherically symmetric models of SN bubbles do not model well their spatial extent, and therefore cannot not be used to design sub-grid models of SNe feedback at galactic and cosmological scales. (Less)
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
hydrodynamics, methods: numerical, ISM: supernova remnants, Astrophysics - Astrophysics of Galaxies
in
Monthly Notices of the Royal Astronomical Society
volume
485
issue
3
pages
8 pages
publisher
Oxford University Press
external identifiers
  • scopus:85067086644
ISSN
1365-2966
DOI
10.1093/mnras/stz705
language
English
LU publication?
yes
id
23b6ac3b-53ca-43b1-b557-84ff8bc7c8c8
date added to LUP
2019-05-21 15:15:39
date last changed
2022-12-15 18:30:52
@article{23b6ac3b-53ca-43b1-b557-84ff8bc7c8c8,
  abstract     = {{Modelling the propagation of supernova (SN) bubbles, in terms of energy, momentum, and spatial extent, is critical for simulations of galaxy evolution which do not capture these scales. To date, small-scale models of SN feedback predict that the evolution of above-mentioned quantities can be solely parametrized by average quantities of the surrounding gas, such as density. However, most of these studies neglect the turbulent motions of this medium. In this paper, we study the propagation and evolution of SNe in turbulent environments. We confirm that the time evolution of injected energy and momentum can be characterized by the average density. However, the details of the density structure of the interstellar medium play a crucial role in the spatial extent of the bubble, even at a given average density. We demonstrate that spherically symmetric models of SN bubbles do not model well their spatial extent, and therefore cannot not be used to design sub-grid models of SNe feedback at galactic and cosmological scales.}},
  author       = {{Ohlin, Loke and Renaud, Florent and Agertz, Oscar}},
  issn         = {{1365-2966}},
  keywords     = {{hydrodynamics, methods: numerical, ISM: supernova remnants, Astrophysics - Astrophysics of Galaxies}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{3}},
  pages        = {{3887--3894}},
  publisher    = {{Oxford University Press}},
  series       = {{Monthly Notices of the Royal Astronomical Society}},
  title        = {{Supernovae feedback propagation: the role of turbulence}},
  url          = {{http://dx.doi.org/10.1093/mnras/stz705}},
  doi          = {{10.1093/mnras/stz705}},
  volume       = {{485}},
  year         = {{2019}},
}