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We present the first public database of high-energy observations of all known Galactic supernova remnants (SNRs). In section 1 we introduce the rationale for this work motivated primarily by studying particle acceleration in SNRs, and which…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Gilles Ferrand , Samar Safi-Harb

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 study the observable spectral and temporal properties of kilonova remnants (KNRs) analytically, and point out quantitative differences with respect to supernova remnants. We provide detection prospects of KNRs in the context of ongoing…

High Energy Astrophysical Phenomena · Physics 2025-01-10 Sandeep Kumar Acharya , Paz Beniamini , Kenta Hotokezaka

We present 1 to 10GHz radio continuum flux density, spectral index, polarisation and Rotation Measure (RM) images of the youngest known Galactic Supernova Remnant (SNR) G1.9+0.3, using observations from the Australia Telescope Compact Array…

We present updated empirical radio surface-brightness-to-diameter ($\Sigma-D$) relation for supernova remnants (SNRs) in our Galaxy. Our original calibration sample of Galactic SNRs with independently determined distances (Pavlovic et al.…

High Energy Astrophysical Phenomena · Physics 2014-12-31 M. Z. Pavlović , A. Dobardžić , B. Vukotić , D. Urošević

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

We performed three-dimensional magnetohydrodynamic simulations to study the evolution of a supernova remnant (SNR) in a turbulent neutral atomic interstellar medium. The media used as background shares characteristics with the Solar…

Astrophysics of Galaxies · Physics 2019-10-16 Marco A. Villagran , P. F. Velázquez , D. O. Gómez , E. B. Giacani

The X-ray emission from a supernova remnant (SNR) is a powerful diagnostic of the state of the shocked plasma. The temperature (kT) and the emission measure (EM) of the shocked-gas are related to the energy of the explosion, the age of the…

High Energy Astrophysical Phenomena · Physics 2020-05-21 D. A. Leahy , S. Ranasinghe. M. Gelowitz

In this paper we present new empirical radio surface brightness-to-diameter ({\Sigma} - D) relations for supernova remnants (SNRs) in our Galaxy. We also present new theoretical derivations of the {\Sigma} - D relation based on…

Astrophysics of Galaxies · Physics 2017-04-05 M. Z. Pavlovic , D. Urosevic , B. Vukotic , B. Arbutina , U. D. Goker

Supernova Remnants (SNRs) exhibit spectra featured by synchrotron radio emission arising from the relativistic electrons, and high-energy emission from both leptonic (Bremsstrahlung and Inverse Compton) and hadronic processes (${\pi}^0$…

A catalogue of 231 Galactic supernova remnants (SNRs) is presented, and the selection effects applicable to the identification of remnants at radio wavelengths are discussed. In addition to missing low surface brightness remnants, small…

Astrophysics · Physics 2007-05-23 D. A. Green

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

Supernova remnants (SNRs) offer the means to study SN explosions, dynamics, and shocks at sub-parsec scales. X-ray observations probe the hot metals synthesized in the explosion and the TeV electrons accelerated by the shocks, and thus they…

Supernova remnants (SNR) are now widely believed to be a source of cosmic rays (CRs) up to an energy of 1 PeV. The magnetic fields required to accelerate CRs to sufficiently high energies need to be much higher than can result from…

Astrophysics · Physics 2008-10-30 K. M. Schure , J. Vink , A. Achterberg , R. Keppens

The end of supernova remnant (SNR) evolution is characterized by a so-called "radiative" stage, in which efficient cooling of the hot bubble inside the forward shock slows expansion, leading to eventual shock breakup. Understanding SNR…

High Energy Astrophysical Phenomena · Physics 2024-09-06 Rebecca Diesing , Minghao Guo , Chang-Goo Kim , James Stone , Damiano Caprioli

We have developed an inversion method for determination of the characteristics of the acceleration mechanism directly and non-parametrically from observations, in contrast to the usual forward fitting of parametric model variables to…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Vahé Petrosian , Qingrong Chen

The selection effects applicable to the identification of Galactic supernova remnants (SNRs) at radio wavelengths are discussed. Low surface brightness remnants are missing, as are those with small angular sizes (including young but distant…

Astrophysics · Physics 2007-05-23 D. A. Green

Study of radio supernovae over the past 25 years includes two dozen detected objects and more than 100 upper limits. From this work it is possible to identify classes of radio properties, demonstrate conformance to and deviations from…

In this paper we present the updated empirical radio surface-brightness-to-diameter ($\Sigma$--$D$) relation for Galactic supernova remnants (SNRs) calibrated using $110$ SNRs with reliable distances. We apply orthogonal fitting procedure…

Astrophysics of Galaxies · Physics 2020-01-22 B. Vukotić , A. Ćiprijanović , M. M. Vučetić , D. Onić , D. Urošević

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