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Anisotropic thermal conduction plays an important role in various astrophysical systems. One of the most stringent tests of thermal conduction can be found in supernova remnants. In this paper we study anisotropic thermal conduction and…

Astrophysics · Physics 2007-11-14 D. S. Balsara , D. A. Tilley , J. C. Howk

The Cygnus region is a vast star-forming complex harbouring a population of powerful objects, including massive star clusters and associations, Wolf-Rayet stars, pulsars, and supernova remnants. The multi-wavelength picture is far from…

High Energy Astrophysical Phenomena · Physics 2025-11-12 L. Haerer , T. Vieu , F. Schulze , C. J. K. Larkin , B. Reville

Context. Young supernova remnants (SNRs) exhibit narrow filaments of non-thermal X-ray emission whose widths can be limited either by electron energy losses or damping of the magnetic field. Aims. We want to investigate whether or not…

High Energy Astrophysical Phenomena · Physics 2012-08-28 Robert Rettig , Martin Pohl

Statistics of the magnetic field disturbances in the supernova remnants (SNRs) can be accessed using the second-order correlation function of the synchrotron intensities. Here we measure the magnetic energy spectra in supernova remnant…

High Energy Astrophysical Phenomena · Physics 2020-09-15 Pavan Kumar Vishwakarma , Jais Kumar

Mixed-morphology supernova remnants (MMSNRs) are characterized by a shell-like morphology in the radio and centrally-peaked thermal emission in the X-ray band. The nature of this peculiar class of supernova remnants (SNRs) remains a…

High Energy Astrophysical Phenomena · Physics 2024-04-01 Alexandros Chiotellis , Emmanouil Zapartas , Dominique M. -A. Meyer

The maps of intensity and polarization of the radio synchrotron emission from shell-type supernova remnants (SNRs) contain a considerable amount of information, although of not easy interpretation. With the aim of deriving constraints on…

High Energy Astrophysical Phenomena · Physics 2016-03-23 Rino Bandiera , Oleh Petruk

We present calculations of the radio emission from supernovae based on high-resolution simulations of the hydrodynamics and radiation transfer, using simple energy density relations which link the properties of the radiating electrons and…

Astrophysics · Physics 2009-11-07 Amy J. Mioduszewski , Vikram V. Dwarkadas , Lewis Ball

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

Using three-dimensional magnetohydrodynamics simulations, we show that the efficiency of cosmic-ray (CR) production at supernova remnants (SNRs) is over-predicted if it could be estimated based on proper motion measurements of H$\alpha$…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Jiro Shimoda , Tsuyoshi Inoue , Yutaka Ohira , Ryo Yamazaki , Aya Bamba , Jacco Vink

A weakly magnetized neutron star (NS) undergoing disk accretion should release about a half of its power in a compact region known as the accretion boundary layer. Latitudinal spread of the accreted matter and efficient radiative cooling…

High Energy Astrophysical Phenomena · Physics 2025-05-08 Aleksandr Rusakov , Pavel Abolmasov , Omer Bromberg

Thermal X-ray spectra from supernova remnants (SNRs) are dominated by a number of line emission from various elements. Resolving the individual lines is critically important for a variety of scientific topics such as diagnosing…

High Energy Astrophysical Phenomena · Physics 2023-03-30 Satoru Katsuda

Supernova models with a full spectral treatment of the neutrino transport are presented, employing the Prometheus/Vertex neutrino-hydrodynamics code with a ``ray-by-ray plus'' approximation for treating two- (or three-) dimensional…

Astrophysics · Physics 2008-11-26 R. Buras , M. Rampp , H. -Th. Janka , K. Kifonidis

Supernova remnants (SNRs) are widely believed to be the principal source of galactic cosmic rays. Such energetic particles can produce gamma-rays and lower energy photons via interactions with the ambient plasma. In this paper, we present…

The shock fronts of supernova remnants (SNRs) are believed to be significant sites of acceleration of cosmic ray particles. Previous researchers have shown that a particle distribution similar to a log-parabola can be generated when…

High Energy Astrophysical Phenomena · Physics 2026-04-22 Joshua J. Ziegler , Justin D. Finke , J. Martin Laming

The size distribution of supernova remnants (SNRs) can help to clarify the various aspects of their evolution and interaction with the interstellar medium (ISM). Since the observed samples of SNRs are a collection of objects with very…

Astrophysics of Galaxies · Physics 2015-06-18 Abdul I. Asvarov

Context. Galactic cosmic rays are widely assumed to arise from diffusive shock acceleration, specifically at shocks in supernova remnants (SNRs). These shocks expand in a complex environment, particularly in the core-collapse scenario as…

High Energy Astrophysical Phenomena · Physics 2022-05-25 Samata Das , Robert Brose , Dominique M. -A. Meyer , Martin Pohl , Iurii Sushch , Pavlo Plotko

Supernovae (SN), the most energetic stellar feedback mechanism, are crucial for regulating the interstellar medium (ISM) and launching galactic winds. We explore how supernova remnants (SNRs) create a multiphase medium by performing 3D…

Astrophysics of Galaxies · Physics 2015-11-18 Miao Li , Jeremiah P. Ostriker , Renyue Cen , Greg L. Bryan , Thorsten Naab

We explore the role of anisotropic thermal conduction on the evolution of supernova remnants through interstellar media with a range of densities via numerical simulations. We find that a remnant expanding in a dense environment can produce…

Astrophysics · Physics 2009-11-11 David A. Tilley , Dinshaw S. Balsara , J. Christopher Howk

We present 3D hydrodynamical simulations of a precessing jet propagating inside a supernova remnant (SNR) shell, particularly applied to the W50-SS433 system in a search for the origin of its peculiar elongated morphology. Several runs were…

Astrophysics · Physics 2009-11-13 Jesús Zavala , Pablo F. Velázquez , Adriano H. Cerqueira , Gloria M. Dubner

Understanding the evolution of a supernova remnant shell in time is fundamental. Such understanding is critical to build reliable models of the dynamics of the supernova remnant shell interaction with any pulsar wind nebula it might…

High Energy Astrophysical Phenomena · Physics 2021-09-22 R. Bandiera , N. Bucciantini , J. Martín , B. Olmi , D. F. Torres