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Supernova remnants (SNRs) exert strong influence on the physics and chemistry of the nearby molecular clouds (MCs) through shock waves and the cosmic rays (CRs) they accelerate. To investigate the SNR-cloud interaction in the prototype…

Astrophysics of Galaxies · Physics 2024-03-21 Tian-Yu Tu , Yang Chen , Ping Zhou , Samar Safi-Harb

Molecular clouds are known to be clumpy, with dense molecular clumps occupying only a few percent of the volume. A supernova remnant then evolves primarily in the interclump medium, and becomes radiative at a radius of about 6 pc, forming a…

Astrophysics · Physics 2009-10-30 Roger A. Chevalier

The morphology and the distribution of material observed in SNRs reflect the interaction of the SN blast wave with the ambient environment, the physical processes associated with the SN explosion and the internal structure of the progenitor…

High Energy Astrophysical Phenomena · Physics 2021-05-05 S. Ustamujic , S. Orlando , E. Greco , M. Miceli , F. Bocchino , A. Tutone , G. Peres

We present high-resolution ($\sim$ 0.1 pc), hydrodynamical and magnetohydrodynamical simulations to investigate whether the observed level of molecular cloud (MC) turbulence can be generated and maintained by external supernova (SN)…

Astrophysics of Galaxies · Physics 2018-03-28 D. Seifried , S. Walch , S. Haid , P. Girichidis , T. Naab

We investigate the evolution of supernova remnants (SNRs) in a two-phase cloudy medium by performing a series of high-resolution (up to $\Delta x\approx0.01\,\mathrm{pc}$), 3D hydrodynamical simulations including radiative cooling and…

Astrophysics of Galaxies · Physics 2024-11-21 Minghao Guo , Chang-Goo Kim , James M. Stone

Context: Supernovae (SNe) inject large amounts of energy and chemically enriched materials into their surrounding interstellar medium and, in some instances, into molecular clouds (MCs). The interaction of a supernova remnant (SNR) with a…

Astrophysics of Galaxies · Physics 2022-12-21 Parichay Mazumdar , Le Ngoc Tram , Friedrich Wyrowski , Karl M. Menten , Xindi Tang

We universally search for evidence of kinematic and spatial correlation of supernova remnant (SNR) and molecular cloud (MC) associations for nearly all SNRs in the coverage of the MWISP CO survey, i.e. 149 SNRs, 170 SNR candidates, and 18…

In the core-collapse scenario, the supernova remnants evolve inside the complex wind-blown bubbles, structured by massive progenitors during their lifetime. Therefore, particle acceleration and the emissions from these SNRs can carry the…

High Energy Astrophysical Phenomena · Physics 2024-08-29 Samata Das , Robert Brose , Martin Pohl , Dominique M. -A. Meyer , Iurii Sushch

There are about 70 Galactic supernova remnants (SNRs) that are now confirmed or suggested to be in physical contact with molecular clouds (MCs) with six kinds of evidence of multiwavelength observations. Recent detailed CO-line…

Astrophysics of Galaxies · Physics 2015-06-15 Yang Chen , Bing Jiang , Ping Zhou , Yang Su , Xin Zhou , Hui Li , Xiao Zhang

The Galactic supernova remnant (SNR) IC443 is one of the most studied core-collapse SNRs for its interaction with molecular clouds. However, the ambient molecular clouds with which IC443 is interacting have not been thoroughly studied and…

Astrophysics of Galaxies · Physics 2015-06-04 Jae-Joon Lee , Bon-Chul Koo , Ronald L. Snell , Min S. Yun , Mark H. Heyer , Michael G. Burton

We study cosmic-ray acceleration in a supernova remnant (SNR) and the escape from it. We model nonthermal particle and photon spectra for the hidden SNR in the open cluster Westerlund 2, and the old-age mixed-morphology SNR W 28. We assume…

High Energy Astrophysical Phenomena · Physics 2014-11-20 Yutaka Fujita , Yutaka Ohira , Shuta J. Tanaka , Fumio Takahara

Supernova remnants (SNRs) are the outcome of supernovae (SNe, either core-collapse or thermonuclear). The remnant results from the interaction between the stellar ejecta and the ambient medium around the progenitor star. Young SNRs are…

High Energy Astrophysical Phenomena · Physics 2020-02-18 Gilles Ferrand

We carry out three-dimensional hydrodynamic simulations of the supernova remnants (SNRs) produced inside molecular clouds (MCs) near their surface using the HLL code (Harten et al. 1983). We explore the dynamical evolution and the X-ray…

Astrophysics of Galaxies · Physics 2015-06-03 Wankee Cho , Jongsoo Kim , Bon-Chul Koo

We probe the environmental properties of X-ray supernova remnants (SNRs) at various points along their evolutionary journey, especially the S-T phase, and their conformance with theoretically derived models of SNR evolution. The remnant…

High Energy Astrophysical Phenomena · Physics 2022-06-22 Chris Albert , Vikram V Dwarkadas

In evolved supernova remnants (SNRs) interacting with molecular clouds, such as IC 443, W44, and 3C391, a highly inhomogeneous structure consisting of a forward shock of moderate Mach number, a cooling layer, a dense radiative shell and an…

Astrophysics · Physics 2009-10-31 A. M. Bykov , R. A. Chevalier , D. C. Ellison , Yu. A. Uvarov

About 15%-60% of all supernova remnants are estimated to interact with dense molecular clouds. In these high density environments, radiative losses are significant. The cooling radiation can be observed in forbidden lines at optical…

High Energy Astrophysical Phenomena · Physics 2024-12-25 P. Smirnova , E. I. Makarenko , S. D. Clarke , E. Glukhov , S. Walch , I. Vaezzadeh , D. Seifried

Many supernova remnants (SNRs) are considered to evolve in molecular environments, but the associations between SNRs and molecular clouds (MCs) are often unclear. Being aware of such ambiguous case, we report our study on the molecular…

High Energy Astrophysical Phenomena · Physics 2020-07-15 Xin Zhou , Yang Su , Ji Yang , Yang Chen , Ye Xu , Xuepeng Chen , Shaobo Zhang

The giant molecular clouds (MCs) found in the Milky Way and similar galaxies play a crucial role in the evolution of these systems. The supernova explosions that mark the death of massive stars in these regions often lead to interactions…

High Energy Astrophysical Phenomena · Physics 2015-06-22 P. Slane , A. Bykov , D. C. Ellison , G. Dubner , D. Castro

The environment of supernova remnants (SNRs) is a key factor in their evolution, particularly at later stages of their existence. It is often assumed that mixed-morphology (MM) SNRs evolve in very dense environments, and that their…

High Energy Astrophysical Phenomena · Physics 2019-07-03 Maria Arias , Vladimir Domcek , Ping Zhou , Jacco Vink

Published X-ray emission properties for a sample of 50 supernova remnants (SNRs) in the LMC are used as input for SNR evolution modelling calculations. The forward shock emission is modelled to obtain the initial explosion energy, age, and…

High Energy Astrophysical Phenomena · Physics 2017-03-08 D. A. Leahy
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