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We systematically perform hydrodynamics simulations of 20 km s^-1 converging flows of the warm neutral medium (WNM) to calculate the formation of the cold neutral medium (CNM), especially focusing on the mean properties of the multiphase…

Dust destruction by supernovae is one of the main processes removing dust from the interstellar medium (ISM). Estimates of the efficiency of this process, both theoretical and observational, typically assume a shock propagating into a…

Astrophysics of Galaxies · Physics 2020-11-11 F. D. Priestley , H. Chawner , M. Matsuura , I. De Looze , M. J. Barlow , H. L. Gomez

We investigate the equilibrium charge distribution of dust grains in the interstellar medium (ISM). Our treatment accounts for collisional charging by electrons and ions, photoelectric charging due to a background interstellar radiation…

Astrophysics of Galaxies · Physics 2019-01-30 Juan C. Ibáñez-Mejía , Stefanie Walch , Alexei V. Ivlev , Seamus Clarke , Paola Caselli , Prabesh R. Joshi

Using a high-resolution cosmological hydrodynamic simulation, we present a method to constrain extinction due to intergalactic grey dust based on the observed magnitudes of distant Type IA supernovae. We apply several simple prescriptions…

Astrophysics · Physics 2015-09-23 Rupert A. C. Croft , Romeel Dave' , Lars Hernquist , Neal Katz

Ram pressure stripping (RPS) is a process that removes the interstellar medium (ISM) quickly, playing a vital role in galaxy evolution. Previous RPS studies have treated the ISM as single-phase or lack the resolution and physical processes…

Astrophysics of Galaxies · Physics 2022-09-14 Woorak Choi , Chang-Goo Kim , Aeree Chung

Atomic fine structure lines have been detected in the local Universe and at high redshifts over the past decades. The [C II] emission line at 158 $\mu$m is an important observable as it provides constraints on the interstellar medium (ISM)…

Astrophysics of Galaxies · Physics 2021-01-27 Andrés Felipe Ramos Padilla , Lingyu Wang , Sylvia Ploeckinger , F. F. S. van der Tak , Scott Trager

The extent to which turbulence mixes gas in the face of recurrent infusions of fresh metals by supernovae (SN) could help provide important constraints on the local star formation conditions. This includes predictions of the metallicity…

We examine MHD simulations of the propagation of a strong shock wave through the interstellar two-phase medium composed of small-scale cloudlets and diffuse warm neutral medium in two-dimensional geometry. The pre-shock two-phase medium is…

Solar and Stellar Astrophysics · Physics 2010-11-30 Tsuyoshi Inoue , Ryo Yamazaki , Shu-ichiro Inutsuka

Large scale outflows in star-forming galaxies are observed to be ubiquitous, and are a key aspect of theoretical modeling of galactic evolution in a cosmological context, the focus of the SMAUG (Simulating Multiscale Astrophysics to…

Aims. We introduce the SISSI (Supernovae In a Stratified, Shearing Interstellar medium) simulation suite, which aims to enable a more comprehensive understanding of supernova remnants (SNRs) evolving in a complex interstellar medium (ISM)…

Astrophysics of Galaxies · Physics 2025-10-01 Leonard E. C. Romano , Manuel Behrendt , Andreas Burkert

The diffuse interstellar medium (ISM) is an integral part of the evolution of the entire Galaxy. Metals are produced by stars and their abundances are the direct testimony of the history of stellar evolution. However, the interstellar dust…

Astrophysics of Galaxies · Physics 2014-03-20 C. Pinto , J. S. Kaastra , E. Costantini , C. de Vries

We have performed time-dependent numerical simulations of the interstellar medium (ISM) which account for galactic shear and magnetic fields, vertical gravity, and a radiative cooling function for atomic gas. This allows us to study the…

Astrophysics · Physics 2011-02-11 Robert A. Piontek , Eve C. Ostriker

Context. Molecular clouds are known to be turbulent and strongly affected by stellar feedback. Moreover, stellar feedback is believed to drive turbulence at large scales in galaxies. Aims. We study the role played by supernovae in molecular…

Astrophysics of Galaxies · Physics 2015-04-15 Olivier Iffrig , Patrick Hennebelle

Context. Supernova remnants (SNR) are one of the main sources of galactic cosmic rays acceleration. This acceleration, believed to happen at the blast wave front, leads to an energy loss at the shock front. This results in the apparent…

High Energy Astrophysical Phenomena · Physics 2023-04-26 Gabriel Rigon , Tsuyoshi Inoue

In a previous paper we investigated the energy transfer of massive stars to the interstellar medium as a function of time and the geometrical configuration of three massive stars via 3D-mesh-refining hydrodynamics simulations, following the…

Astrophysics of Galaxies · Physics 2014-07-02 Martin Krause , Roland Diehl , Hans Böhringer , Michael Freyberg , Daniel Lubos

At least 5 per cent of the massive stars are moving supersonically through the interstellar medium (ISM) and are expected to produce a stellar wind bow shock. We explore how the mass loss and space velocity of massive runaway stars affect…

Solar and Stellar Astrophysics · Physics 2015-06-22 D. M. -A. Meyer , J. Mackey , N. Langer , V. V. Gvaramadze , A. Mignone , R. G. Izzard , L. Kaper

We discuss the degree to which radio propagation measurements diagnose conditions in the ionized gas of the interstellar medium (ISM). The "signal generators" of the radio waves of interest are extragalactic radio sources (quasars and radio…

Astrophysics of Galaxies · Physics 2015-06-15 Marijke Haverkorn , Steven R. Spangler

We carry out 3D-hydrodynamical calculations for the interaction of expanding supernova ejecta with the dense circumstellar matter (CSM) and the rarefied interstellar medium (ISM) outside. The CSM is composed of the stellar wind matter from…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Takafumi Shimizu , Kuniaki Masai , Katsuji Koyama

Magnetic fields permeate the entire Galaxy and are essential to, for example, the regulation of several stages of the star formation process and cosmic ray transportation. Unraveling its properties, such as intensity and topology, is an…

We investigate models of self-consistent chemical enrichment of the intergalactic medium (IGM) from z=6 to 1.5, based on hydrodynamic simulations of structure formation that incorporate galactic outflows. Our main result is that outflow…

Astrophysics · Physics 2009-08-21 Benjamin D. Oppenheimer , Romeel Davé
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