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We study the merging and evolution of isolated supernovae (SNe) remnants in a stellar cluster into a collective superbubble, with the help of 3-D hydrodynamic simulations. We particularly focus on the transition stage when the isolated SNe…

Astrophysics of Galaxies · Physics 2017-05-03 Evgenii O. Vasiliev , Yuri A. Shchekinov , Biman B. Nath

Using idealized 1-D Eulerian hydrodynamic simulations, we contrast the behavior of isolated supernovae with the superbubbles driven by multiple, collocated supernovae. Continuous energy injection via successive supernovae going off within…

Astrophysics of Galaxies · Physics 2015-06-18 Prateek Sharma , Arpita Roy , Biman B. Nath , Yuri Shchekinov

We use numerical simulations to analyze the evolution and properties of superbubbles (SBs), driven by multiple supernovae (SNe), that propagate into the two-phase (warm/cold), cloudy interstellar medium (ISM). We consider a range of mean…

Astrophysics of Galaxies · Physics 2017-01-04 Chang-Goo Kim , Eve C. Ostriker , Roberta Raileanu

We use spherically symmetric hydrodynamic simulations to study the dynamical evolution and internal structure of superbubbles (SBs) driven by clustered supernovae (SNe), focusing on the effects of thermal conduction and cooling in the…

Astrophysics of Galaxies · Physics 2019-10-09 Kareem El-Badry , Eve C. Ostriker , Chang-Goo Kim , Eliot Quataert , Daniel R. Weisz

We study the evolution of multiple supernova (SN) explosions inside a pre-exiting cavity blown by winds from massive progenitor stars. Hydrodynamic simulations in one-dimensional spherical geometry, including radiative cooling and thermal…

Astrophysics · Physics 2008-11-26 Hyunjin Cho , Hyesung Kang

Interstellar bubbles appear to be smaller in observations than expected from calculations. Instabilities at the shell boundaries create three-dimensional ef- fects, and are probably responsible for part of this discrepancy. We investigate…

Astrophysics of Galaxies · Physics 2015-06-23 Martin G. H. Krause , Roland Diehl

Young stars typically form in star clusters, so the supernovae (SNe) they produce are clustered in space and time. This clustering of SNe may alter the momentum per SN deposited in the interstellar medium (ISM) by affecting the local ISM…

Astrophysics of Galaxies · Physics 2016-11-24 Eric S. Gentry , Mark R. Krumholz , Avishai Dekel , Piero Madau

We present an analytic model for clustered supernovae (SNe) feedback in galaxy disks, incorporating the dynamical evolution of superbubbles formed from spatially overlapping SNe remnants. We propose two realistic outcomes for the evolution…

Astrophysics of Galaxies · Physics 2022-06-29 Matthew E. Orr , Drummond B. Fielding , Christopher C. Hayward , Blakesley Burkhart

We study the conditions for disk galaxies to produce superbubbles that can break out of the disk and produce a galactic wind. We argue that the threshold surface density of supernovae rate for seeding a wind depends on the ability of…

Astrophysics of Galaxies · Physics 2015-06-15 Arpita Roy , Biman B. Nath , Prateek Sharma , Yuri Shchekinov

We study the evolution of isolated and merging interstellar bubbles of three stars (25, 32 and 60 M\odot) in a homogeneous background medium with a density of 10 mp /ccm via 3D-hydrodynamic simulations with standard ISM thermodynamics…

Astrophysics of Galaxies · Physics 2015-06-05 Martin Krause , Katharina Fierlinger , Roland Diehl , Andreas Burkert , Rasmus Voss , Udo Ziegler

We use three-dimensional hydrodynamic simulations of vertically stratified patches of galactic discs to study how the spatio-temporal clustering of supernovae (SNe) enhances the power of galactic winds. SNe that are randomly distributed…

Astrophysics of Galaxies · Physics 2018-09-19 Drummond Fielding , Eliot Quataert , Davide Martizzi

Observations indicate that most massive stars in the Galaxy appear in groups, called OB associations, where their strong wind activity generates large structures known as superbubbles, inside which the subsequent supernovae (SNe) explode,…

Astrophysics · Physics 2009-11-10 E. Parizot , A. Marcowith , E. van der Swaluw , A. M. Bykov , V. Tatischeff

(Abridged) Heating of the interstellar medium by multiple supernovae (SNe) explosions is at the heart of producing galaxy-scale outflows. We use hydrodynamical simulations to study the efficiency of multiple SNe in heating the interstellar…

Astrophysics of Galaxies · Physics 2015-06-18 Evgenii O. Vasiliev , Biman B. Nath , Yuri Shchekinov

Mass loss from massive stars ($\ga 8 \msun$) can result in the formation of circumstellar wind blown cavities surrounding the star, bordered by a thin, dense, cold shell. When the star explodes as a core-collapse supernova (SN), the…

Astrophysics · Physics 2009-11-10 Vikram V. Dwarkadas

The Local and Loop I superbubbles are the closest and best investigated supernova (SN) generated bubbles and serve as test laboratories for observations and theories of the interstellar medium. Since the morphology and dynamical evolution…

Astrophysics · Physics 2009-11-11 Dieter Breitschwerdt , Miguel A. de Avillez

Supernova (SN) blast waves inject energy and momentum into the interstellar medium (ISM), control its turbulent multiphase structure and the launching of galactic outflows. Accurate modelling of the blast wave evolution is therefore…

Astrophysics of Galaxies · Physics 2016-05-25 Sebastian Haid , Stefanie Walch , Thorsten Naab , Daniel Seifried , Jonathan Mackey , Andrea Gatto

We investigate galactic winds driven by supernova (SN) explosions in an isolated dwarf galaxy using high-resolution (particle mass $m_{\rm gas} = 1{\rm M_\odot}$, number of neighbor $N_{\rm ngb} = 100$) smoothed-particle hydrodynamics…

Astrophysics of Galaxies · Physics 2018-12-12 Chia-Yu Hu

We consider the dynamics of and emission from growing superbubbles in a stratified interstellar gaseous disc driven by energy release from supernovae explosions in stellar clusters with {masses $M_{cl}= 10^5-1.6\times 10^6~M_\odot$}.…

Astrophysics of Galaxies · Physics 2023-02-08 Evgenii O. Vasiliev , Sergey A. Drozdov , Biman B. Nath , Ralf-Jürgen Dettmar , Yuri A. Shchekinov

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

We use 3D hydrodynamical models to investigate the effects of massive star feedback from winds and supernovae on inhomogeneous molecular material left over from the formation of a massive stellar cluster. We simulate the interaction of the…

Solar and Stellar Astrophysics · Physics 2015-06-15 H. Rogers , J. M. Pittard
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