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Related papers: Nonthermal Signatures of Radiative Supernova Remna…

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Near the ends of their lives, supernova remnants (SNRs) enter a "radiative phase," when efficient cooling of the postshock gas slows expansion. Understanding SNR evolution at this stage is crucial for estimating feedback in galaxies, as…

High Energy Astrophysical Phenomena · Physics 2024-12-02 Rebecca Diesing , Siddhartha Gupta

Supernova explosions and their remnants (SNRs) drive important feedback mechanisms that impact considerably the galaxies that host them. Then, the knowledge of the SNRs evolution is of paramount importance in the understanding of the…

Astrophysics of Galaxies · Physics 2019-06-26 Santiago Jimenez , Guillermo Tenorio-Tagle , Sergiy Silich

Supernova remnants (SNRs) are believed to be the major contributors to Galactic cosmic rays. The detection of non-thermal emission from SNRs demonstrates the presence of energetic particles, but direct signatures of protons and other ions…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Gilles Ferrand , Anne Decourchelle , Samar Safi-Harb

I outline the dynamical evolution of the shell remnants of supernovae (SNRs), from initial interaction of supernova ejecta with circumstellar material (CSM) through to the final dissolution of the remnant into the interstellar medium (ISM).…

High Energy Astrophysical Phenomena · Physics 2018-04-25 Stephen P. Reynolds

Supernova remnants (SNRs) are known to accelerate particles to relativistic energies, on account of their nonthermal emission. The observational progress from radio to gamma-ray observations reveals more and more morphological features that…

High Energy Astrophysical Phenomena · Physics 2021-11-03 Robert Brose , Martin Pohl , Iurii Sushch

Supernova remnants (SNRs) are thought to be one of the major acceleration sites of galactic cosmic rays (CRs) and an important class of objects for high-energy astrophysics. SNRs produce multi-wavelength, non-thermal emission via…

High Energy Astrophysical Phenomena · Physics 2019-05-08 Haruo Yasuda , Shiu-Hang Lee

The evolution of the radio emission of shell-type Supernova remnants (SNRs) is modeled within the framework of the simple and commonly used assumptions that the mechanism of diffusive shock acceleration (DSA) is responsible for generating…

Astrophysics · Physics 2009-11-11 Abdul Asvarov

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 present a new analytical approach to derive approximate solutions describing the shock evolution in non-radiative supernova remnants (SNRs). We focus on the study of the forward shock and contact discontinuity while application to the…

High Energy Astrophysical Phenomena · Physics 2017-01-11 Xiaping Tang , Roger A. Chevalier

The very-high-energy (VHE; E > 100 GeV) gamma-ray emission observed from a number of Supernova remnants (SNRs) indicates particle acceleration to high energies at the shock of the remnants and a potentially significant contribution to…

High Energy Astrophysical Phenomena · Physics 2022-03-02 Iurii Sushch , Robert Brose , Martin Pohl , Pavlo Plotko , Samata Das

Supernova (SN) explosions are a major feedback mechanism regulating star formation in galaxies through their momentum input. We review the observations of SNRs in radiative stages in the Milky Way to validate the theoretical results on the…

Astrophysics of Galaxies · Physics 2020-12-16 Bon-Chul Koo , Chang-Goo Kim , Sangwook Park , Eve C. Ostriker

The contribution of galactic supernova remnants (SNRs) to the origin of cosmic rays (CRs) is an important open question in modern astrophysics. Broadband non-thermal emission is a useful proxy for probing the energy budget and production…

High Energy Astrophysical Phenomena · Physics 2022-09-07 Ryosuke Kobashi , Haruo Yasuda , Shiu-Hang Lee

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

We present a 3-dimensional model of supernova remnants (SNRs) where the hydrodynamical evolution of the remnant is modeled consistently with nonlinear diffusive shock acceleration occuring at the outer blast wave. The model includes…

Astrophysics · Physics 2009-11-13 Shiu-Hang Lee , Tsuneyoshi Kamae , Donald C. Ellison

We present new models for the forward and reverse shock thermal X-ray emission from core-collapse and Type Ia supernova remnants (SNRs) which include the efficient production of cosmic rays via non-linear diffusive shock acceleration (DSA).…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Shiu-Hang Lee , Daniel J. Patnaude , Donald C. Ellison , Shigehiro Nagataki , Patrick O. Slane

We investigate the effects of the efficient production of cosmic rays on the evolution of supernova remnants (SNRs) in the adiabatic Sedov-Taylor phase. We model the SNR by coupling the hydrodynamic evolution with nonlinear diffusive shock…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Daniel Castro , Patrick Slane , Daniel J. Patnaude , Donald C. Ellison

Recent observations by the Large Area Telescope (LAT) onboard the Fermi satellite have revealed bright gamma-ray emission from middle-aged supernova remnants (SNRs) inside our Galaxy. These remnants, which also possess bright non-thermal…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Shiu-Hang Lee , Daniel J. Patnaude , John C. Raymond , Shigehiro Nagataki , Patrick O. Slane , Donald C. Ellison

The fast shocks that characterize supernova remnants heat circumstellar and ejecta material to extremely high temperatures, resulting in significant X-ray emission. The X-ray spectrum from an SNR carries a wealth of information about the…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Patrick Slane

Methods for estimation of different reference times which appear in the description of transition of a strong adiabatic shock into the radiative era are reviewed. The need for consideration of an additional transition subphase in between…

Astrophysics · Physics 2007-05-23 O. Petruk

A goal of supernova remnant (SNR) evolution models is to relate fundamental parameters of a supernova (SN) explosion and progenitor star to the current state of its SNR. The SNR hot plasma is characterized by its observed X-ray spectrum,…

Astrophysics of Galaxies · Physics 2019-10-02 D. A. Leahy , Yuyang Wang , Bryson Lawton , Sujith Ranasinghe , Miroslav Filipovic
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