Results 11 to 20 of about 921 (183)
Cosmic-Ray Acceleration in Supernova Remnants
Universe, 2023 Supernova Remnants (SNRs) are generally believed to produce the cosmic rays in our Galaxy due to the powerful supernova blast waves generated by expanding SNRs.
Vera G. Sinitsyna, Vera Y. Sinitsyna
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Failed supernova remnants [PDF]
Publications of the Astronomical Society of Japan, 2021 Abstract In a failed supernova, partial ejection of the progenitor’s outer envelope can occur due to weakening of the core’s gravity by neutrino emission in the protoneutron star phase. We consider emission when this ejecta sweeps up the circumstellar material, analogous to supernova remnants (SNRs). We focus on failed explosions of blue
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Pre-acceleration in the Electron Foreshock. II. Oblique Whistler Waves
The Astrophysical Journal, 2023 Thermal electrons have gyroradii many orders of magnitude smaller than the finite width of a shock, thus need to be pre-accelerated before they can cross it and be accelerated by diffusive shock acceleration.
Paul J. Morris +5 more
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International Astronomical Union Colloquium, 1989 Abstract.In this review I will concentrate on older remnants, by which I mean those in which radiative cooling is important somewhere and the swept up mass is sufficiently large for the details of the initial explosion not to matter. For such remnants it is the optical emission which is crucial since it allows us to deduce a great deal about the ...
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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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Numerical code for fitting radial emission profile of a shell supernova remnant: Application [PDF]
Serbian Astronomical Journal, 2011 We present IDL (Interactive Data Language) codes for fitting a theoretical emission profile of a shell supernova remnant (SNR) to the mean profile of an SNR obtained from radio observations. Two considered theoretical models are: 1) a shell with
Opsenica Slobodan, Arbutina Bojan
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Are Supernovae Responsible for the Gamma Ray Spectrum from the Galactic Center?
Acta Polytechnica CTU Proceedings, 2014 We discuss the supernova remnants distribution as a function of the galactic longitude and compare their positions to that of the detected TeV gamma ray sources. A large fraction of these sources either coincide or a close by known supernova remnants. If
Todor Stanev
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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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A Statistical Analysis of Galactic Radio Supernova Remnants
The Astrophysical Journal Supplement Series, 2023 We present a revised table of 390 Galactic radio supernova remnants (SNRs) and their basic parameters. Statistical analyses are performed on SNR diameters, ages, spectral indices, Galactic heights, and spherical symmetries.
S. Ranasinghe, D. Leahy
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Supernovae and Supernova, Remnants
The Astronomical Journal, 1968 Supernovae remnants evolution, properties and galactic distribution, discussing criteria for catalog listing and remnants as X ray ...
A. Poveda, L. Woltjer
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