Results 31 to 40 of about 201,431 (246)

Three Supernova Remnants observed by BeppoSAX [PDF]

open access: yes, 1998
We present the results of three observations of shell-type supernova remnants observed by BeppoSAX. Two of the remnants (N132D and Cas A) are oxygen rich supernova remnants. They were observed during the PV phase. SN1006 was observed during A01.
Allen   +19 more
core   +3 more sources

Non-linear diffusion of cosmic rays escaping from supernova remnants – I. The effect of neutrals [PDF]

open access: yes, 2016
Supernova remnants are believed to be the main sources of galactic cosmic rays (CR). Within this framework, particles are accelerated at supernova remnant shocks and then released in the interstellar medium.
L. Nava   +4 more
semanticscholar   +1 more source

Supernova Remnants in the Local Group I: A model for the radio luminosity function and visibility times of supernova remnants [PDF]

open access: yes, 2016
Supernova remnants (SNRs) in Local Group galaxies offer unique insights into the origin of different types of supernovae. In order to take full advantage of these insights, one must understand the intrinsic and environmental diversity of SNRs in the ...
S. Sarbadhicary   +4 more
semanticscholar   +1 more source

Magnetic Field Amplification in Supernova Remnants [PDF]

open access: yes, 2017
Based on the new findings on the turbulent dynamo in Xu & Lazarian, we examine the magnetic field amplification in the context of supernova remnants. Due to the strong ion-neutral collisional damping in the weakly ionized interstellar medium, the dynamo ...
Siyao Xu, A. Lazarian
semanticscholar   +1 more source

The Cygnus Loop: Shock Precursors and Electron–Ion Equilibration

open access: yesThe 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
doaj   +1 more source

Core collapse supernova remnants with ears [PDF]

open access: yes, 2016
We study the morphologies of core collapse supernova remnants (CCSNRs) and find that about third of CCSNRs in our sample have two opposite `ears' protruding from their main shell.
Aldana Grichener, N. Soker
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

Rapid Expansion of the Young Type Ia Supernova Remnant 0519–69.0: More Evidence for a Circumstellar Shell

open access: yesThe 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
doaj   +1 more source

Radio Emission from Supernova Remnants: Model Comparison with Observations

open access: yesUniverse, 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
doaj   +1 more source

Nonthermal X-ray emission from young Supernova Remnants [PDF]

open access: yes, 2000
The cosmic-ray spectrum up to the knee ($E\sim 10^{15}$ eV) is attributed to acceleration processes taking place at the blastwaves which bound supernova remnants. Theoretical predictions give a similar estimate for the maximum energy which can be reached
Achterberg, Abraham   +2 more
core   +3 more sources

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