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Supernova remnant (SNR) shocks provide favourable sites of cosmic ray (CR) proton acceleration if the local magnetic field direction is quasi-parallel to the shock normal. Using the moving-mesh magneto-hydrodynamical (MHD) code AREPO we…

High Energy Astrophysical Phenomena · Physics 2020-10-07 Matteo Pais , Christoph Pfrommer

We study the acceleration and radiation of charged particles in the shock waves of supernova remnants using a recent version of the "box model". According to this, particles are accelerated in an energy-dependent region around the shock by…

Astrophysics · Physics 2009-11-11 K. Moraitis , A. Mastichiadis

The origin of the radiation observed in the region of the supernova remnant RX J1713.7-3946, one of the brightest TeV emitters, has been debated since its discovery. The existence of atomic and molecular clouds in this object supports the…

High Energy Astrophysical Phenomena · Physics 2021-06-03 Reimar Leike , Silvia Celli , Alberto Krone-Martins , Celine Boehm , Martin Glatzle , Yasou Fukui , Hidetoshi Sano , Gavin Rowell

A nonlinear kinetic theory of cosmic ray (CR) acceleration in supernova remnants (SNRs) is employed to investigate the properties of SNR RX J1713.7-3946. Observations of the non-thermal radio and X-ray emission spectra as well as the…

High Energy Astrophysical Phenomena · Physics 2015-05-14 E. G. Berezhko , H. J. Voelk

The breakthrough developments of Cherenkov telescopes in the last decade have led to angular resolution of 0.1{\deg} and an unprecedented sensitivity. This has allowed the current generation of Cherenkov telescopes to discover a population…

High Energy Astrophysical Phenomena · Physics 2015-08-05 F. Acero , M. Lemoine-Goumard , M. Renaud , J. Ballet , J. W. Hewitt , R. Rousseau , T. Tanaka

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

A number of nearby Northern Hemisphere shell-type Supernova Remnants (SNRs) has been observed in TeV gamma rays, but none of them could be detected so far. This failure calls for a critical reevaluation of the theoretical arguments for…

Astrophysics · Physics 2007-05-23 H. J. Volk

Supernova remnants (SNRs) are prime candidates for efficient particle acceleration up to the knee in the cosmic ray particle spectrum. In this work we present a new method for a systematic search for new TeV-emitting SNR shells in 2864…

High Energy Astrophysical Phenomena · Physics 2019-08-14 D. Gottschall , M. Capasso , C. Deil , A. Djannati-Atai , A. Donath , P. Eger , V. Marandon , N. Maxted , G. Pühlhofer , M. Renaud , M. Sasaki , R. Terrier , J. Vink

Supernova remnants (SNRs) are the most attractive candidates for the acceleration sites of Galactic cosmic rays. We report the detection of GeV $\gamma$-ray emission with the Pass 8 events recorded by Fermi Large Area Telescope (Fermi-LAT)…

High Energy Astrophysical Phenomena · Physics 2016-01-29 Yu-Liang Xin , Yun-Feng Liang , Xiang Li , Qiang Yuan , Si-Ming Liu , Da-Ming Wei

Improved calculations of X-ray spectra for supernova remnants (SNRs) in the Sedov-Taylor phase are reported, which for the first time include reliable atomic data for Fe L-shell lines. This new set of Sedov models also allows for a partial…

Astrophysics · Physics 2009-10-31 K. J. Borkowski , W. J. Lyerly , S. P. Reynolds

Supernova 1006 is the first shell type supernova remnant to show evidence of particle acceleration to TeV energies. In the present paper we examine this possibility by modeling the observed X-ray non-thermal emission in terms of synchrotron…

Astrophysics · Physics 2011-05-23 A. Mastichiadis , O. C. de Jager

We present the first results of the observations of the supernova remnant RX J1713.7-3946 (also G347.3-0.5) obtained with the EPIC instrument on board the XMM-Newton satellite. We show a 5 pointings mosaiced image of the X-ray synchrotron…

Astrophysics · Physics 2007-05-23 G. Cassam-Chenai , A. Decourchelle , J. Ballet , J. -L. Sauvageot , G. Dubner

The young X-ray and gamma-ray-bright supernova remnant RXJ1713.7-3946 (SNR G347.3-0.5) is believed to be associated with molecular cores that lie within regions of the most intense TeV emission. Using the Mopra telescope, four of the…

Explicitly time-dependent, nonlinear kinetic theory of cosmic ray (CR) acceleration in supernova remnants (SNRs) has been employed to investigate the properties of SNR RX J1713.7-3946. Observations of the nonthermal radio and X-ray emission…

Astrophysics · Physics 2007-08-01 E. G. Berezhko , H. J. Völk

The supernova paradigm for the origin of galactic cosmic rays can be tested using multifrequency observations of both non-thermal and thermal emission from supernova remnants. The smoking gun of hadronic acceleration in these sources can,…

High Energy Astrophysical Phenomena · Physics 2010-01-05 G. Morlino , P. Blasi , E. Amato

The Kepler supernova remnant (SNR) is the only historic supernova remnant lacking a detection at GeV and TeV energies which probe particle acceleration. A recent analysis of Fermi-LAT data reported a likely GeV gamma-ray candidate in the…

High Energy Astrophysical Phenomena · Physics 2022-05-04 Fabio Acero , Marianne Lemoine-Goumard , Jean Ballet

The supernova remnant (SNR) RX J0852-4622 (Vela Jr., G266.6-1.2) is one of the most important SNRs for investigating the acceleration of multi-TeV particles and the origin of Galactic cosmic rays because of its strong synchrotron X-ray and…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Tetsuichi Kishishita , Junko Hiraga , Yasunobu Uchiyama

The remnant G347.3-0.5 exhibits strong shell emission in the radio and X-ray bands, and has a purported detection in the TeV gamma-ray band by the CANGAROO-II telescope. The CANGAROO results were touted as evidence for the production of…

Astrophysics · Physics 2009-11-10 Matthew G. Baring , Donald C. Ellison , Patrick O. Slane

We present a simple analytic model for the various contributions to the non-thermal emission from shell type SNRs, and show that this model's results reproduce well the results of previous detailed calculations. We show that the \geq 1 TeV…

Astrophysics · Physics 2008-11-26 Boaz Katz , Eli Waxman

It has been known for over 50 years that the radio emission from shell supernova remnants (SNRs) indicates the presence of electrons with energies in the GeV range emitting synchrotron radiation. The discovery of nonthermal X-ray emission…

High Energy Astrophysical Phenomena · Physics 2015-05-20 S. P. Reynolds