Results 21 to 30 of about 9,448 (220)
Morphology of supernova remnants and their halos [PDF]
Astronomy & Astrophysics, 2021 Context. 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 need to be accounted for when modeling the emission from those objects. Aims.
Iurii Sushch +4 more
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GALACTIC AND EXTRAGALACTIC SUPERNOVA REMNANTS AS SITES OF PARTICLE ACCELERATION
Acta Polytechnica, 2013 Supernova remnants, owing to their strong shock waves, are likely sources of Galactic cosmic rays. Studies of supernova remnants in X-rays and gamma rays provide us with new insights into the acceleration of particles to high energies. This paper reviews
Manami Sasaki
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The Effects of Elemental Abundances on Fitting Supernova Remnant Models to Data
Universe, 2022 Models for supernova remnant (SNR) evolution can be used to determine the energy of the explosion, the age of the SNR, and the density of the surrounding medium by matching observations. Observed SNR properties derived from the X-ray spectrum include the
Denis A. Leahy
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Radiative Supernova Remnants and Supernova Feedback [PDF]
The Astrophysical Journal, 2020 Abstract 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 theoretical results regarding the momentum/energy injection from a single SN explosion.
Bon-Chul Koo +3 more
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Plerionic supernova remnants [PDF]
AIP Conference Proceedings, 2012 AIP Conference Proceedings of the 5th International Symposium on High-Energy Gamma-Ray Astronomy, Heidelberg, July 9-13 (2012). Eds: F. Aharonian, W. Hofmann, F. Rieger. Solicited review, 8 pages, 4 colour figures. The figures resolution has been reduced for astro-ph.
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The Astrophysical Journal, 2023 The nature of Type Ia supernovae remains controversial. The youngest remnants of Ia supernovae hold clues to the explosion and to the immediate surroundings. We present a third epoch of Chandra observations of the ∼600 yr old Type Ia remnant 0519–69.0 in
Benson T. Guest +7 more
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The Cygnus Loop: Shock Precursors and Electron–Ion Equilibration
The Astrophysical Journal, 2023 The outermost edges of some supernova remnants are marked by filaments of pure Balmer line emission produced by nonradiative shock fronts. The H α profiles of these filaments provide the shock speed and electron–proton temperature ratio in the shock.
John C. Raymond +7 more
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Supernova Remnants in the Magellanic Clouds. VI. The DEM L316 Supernova Remnants [PDF]
The Astrophysical Journal, 2005 Accepted for ApJ v. 635 (December issue)
You-Hua Chu, R. M. Williams
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Highlights of Astronomy, 1974 AbstractThe present structure and recent changes in Cas A are discussed. On the deepest available exposures the optical remnant of this supernova is seen to consist of an almost complete shell. The southern part of this shell is outlined by knots that have developed during the last decade.
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Radio Emission from Supernova Remnants: Model Comparison with Observations
Universe, 2022 Supernova remnants (SNRs) are an integral part in studying the properties of the Galaxy and its interstellar medium. For the current work, we compare the observed radio luminosities of SNRs to predictions based on a recent analytic model applied to 54 ...
Denis A. Leahy +2 more
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