Results 41 to 50 of about 199,466 (288)

Are Supernovae Responsible for the Gamma Ray Spectrum from the Galactic Center?

open access: yesActa 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
doaj   +1 more source

Magnetohydrodynamic Simulations of the Supernova Remnant G1.9+0.3

open access: yesThe Astrophysical Journal, 2023
The youngest Galactic supernova remnant G1.9+0.3 shows a discrete feature between its radio and X-ray morphologies. The observed radio morphology features a single maximum in the north, while the X-ray observation shows two opposite “ears” on the east ...
Shaobo Zhang   +4 more
doaj   +1 more source

The Impact of Progenitor Mass Loss on the Dynamical and Spectral Evolution of Supernova Remnants [PDF]

open access: yes, 2017
There is now substantial evidence that the progenitors of some core-collapse supernovae undergo enhanced or extreme mass loss prior to explosion. The imprint of this mass loss is observed in the spectra and dynamics of the expanding blast wave on ...
D. Patnaude   +6 more
semanticscholar   +1 more source

Radio emission from supernova remnants [PDF]

open access: yesThe Astronomy and Astrophysics Review, 2015
The explosion of a supernova releases almost instantaneously about 1051\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek ...
G. Dubner, E. Giacani
semanticscholar   +1 more source

GALACTIC AND EXTRAGALACTIC SUPERNOVA REMNANTS AS SITES OF PARTICLE ACCELERATION

open access: yesActa 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
doaj   +1 more source

The Effects of Elemental Abundances on Fitting Supernova Remnant Models to Data

open access: yesUniverse, 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
doaj   +1 more source

Radiative Supernova Remnants and Supernova Feedback [PDF]

open access: yesThe 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
openaire   +4 more sources

Constraints on the distribution of supernova remnants with Galactocentric radius [PDF]

open access: yes, 2015
Supernova remnants (SNRs) in the Galaxy are an important source of energy injection into the interstellar medium, and also of cosmic rays. Currently there are 294 known SNRs in the Galaxy, and their distribution with Galactocentric radius is of interest ...
D. Green
semanticscholar   +1 more source

Plerionic supernova remnants [PDF]

open access: yesAIP 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.
openaire   +4 more sources

The population of X-ray supernova remnants in the Large Magellanic Cloud [PDF]

open access: yes, 2015
We present a comprehensive X-ray study of the population of supernova remnants (SNRs) in the LMC. Using primarily XMM-Newton, we conduct a systematic spectral analysis of LMC SNRs to gain new insights on their evolution and the interplay with their host ...
P. Maggi   +13 more
semanticscholar   +1 more source

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