The supernova remnant SN 1006 as a Galactic particle accelerator [PDF]
It is known that cosmic rays could be accelerated by shock waves in supernova (SN) remnants. Here, the authors show that SN 1006 remnant is an efficient source of cosmic rays, providing observational support for the quasi-parallel acceleration mechanism.
Roberta Giuffrida+8 more
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Multifrequency radio observations of a SNR in the LMC: The case of SNR J0527-6549 (DEM l204) [PDF]
We present a detailed study and results of new Australia Telescope Compact Array (ATCA) observations of supernova remnant SNR J0527-6549. This Large Magellanic Cloud (LMC) object follows a typical supernova remnant (SNR) horseshoe morphology ...
Bozzetto L.M.+7 more
doaj +3 more sources
Particle propagation in clumpy supernova remnants [PDF]
The presence of dense clumps in the environment where a supernova remnant expands might have a strong impact in shaping the observed hadronic gamma-ray spectrum.
Celli Silvia
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How Tycho Brahe’s recordings in 1572 support SN 1572 as a type I(a) supernova
The 450th anniversary of the discovery of the SN 1572 supernova event was celebrated in 2022. A closer look at the historical development of the field of supernova astronomy reveals the scientific importance of Tycho Brahe’s 1572 observations of this ...
Tobias C. Hinse+5 more
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A new numerical code for hydrodynamical 3D simulations of supernova remnants [PDF]
We develop a 3D hydrodynamical code written in C programming language to study the expansion of supernova remnants (SNRs) in the surrounding medium. It is based on the MUSCL-Hancock finite volume scheme with the HLLC Riemann solver.
Kostić P.
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Electron–Ion Temperature Ratio in Astrophysical Shocks
Collisionless shock waves in supernova remnants and the solar wind heat electrons less effectively than they heat ions, as is predicted by kinetic simulations.
John C. Raymond+11 more
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Radio-continuum observations of small, radially polarised Supernova Remnant J0519-6902 in the large Magellanic cloud [PDF]
We report on new Australian Telescope Compact Array (ATCA) observations of SNR J0519-6902. The Supernova Remnant (SNR) is small in size (~8 pc) and exhibits a typical SNR spectrum with α = -0.53±0.07, with steeper spectral indices towards the ...
Bozzetto L.M.+3 more
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Multifrequency observations of one of the largest supernova remnants in the local group of galaxies, LMC - SNR J0450-709 [PDF]
We present the results of new Australia Telescope Compact Array (ATCA) observations of one of the largest supernova remnants, SNR J0450-709, in the Local Group of galaxies.
Čajko K.O.+2 more
doaj +3 more sources
Global Deceleration and Inward Movements of X-Ray Knots and Rims of RCW 103
The kinematics of shocks, ejecta knots, and the compact remnant of a supernova remnant give insights into the nature of the progenitor and the surrounding environment.
Hiromasa Suzuki+4 more
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The Cassiopeia A supernova remnant has a complex structure, manifesting the multidimensional nature of core-collapse supernova explosions. To further understand this, we carried out near-infrared multiobject spectroscopy on the ejecta knots located in ...
Bon-Chul Koo+3 more
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