Constraints on the distribution of supernova remnants with Galactocentric radius [PDF]
, 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
Magnetohydrodynamic Simulations of the Supernova Remnant G1.9+0.3
The 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
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The population of X-ray supernova remnants in the Large Magellanic Cloud [PDF]
, 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
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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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Parameterizing the Supernova Engine and Its Effect on Remnants and Basic Yields [PDF]
, 2017 Core-collapse supernova science is now entering an era in which engine models are beginning to make both qualitative and, in some cases, quantitative predictions.
C. Fryer +4 more
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EMU Detection of a Large and Low Surface Brightness Galactic SNR G288.8–6.3
The Astronomical Journal, 2023 We present the serendipitous detection of a new Galactic supernova remnant (SNR), G288.8–6.3, using data from the Australian Square Kilometre Array Pathfinder (ASKAP) Evolutionary Map of the Universe (EMU) survey.
Miroslav D. Filipović +38 more
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Detection of the Characteristic Pion-Decay Signature in Supernova Remnants [PDF]
Science, 2013 Accelerated Protons Although cosmic rays were first detected a hundred years ago, their origin is still not fully understood. Comic rays are high-energy particles, mostly protons, which bombard Earth from outer space.
M. Ackermann +198 more
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PROBING X-RAY ABSORPTION AND OPTICAL EXTINCTION IN THE INTERSTELLAR MEDIUM USING CHANDRA OBSERVATIONS OF SUPERNOVA REMNANTS [PDF]
, 2015 We present a comprehensive study of interstellar X-ray extinction using the extensive Chandra supernova remnant (SNR) archive and use our results to refine the empirical relation between the hydrogen column density and optical extinction. In our analysis,
Dillon R. Foight +3 more
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Grammage of cosmic rays around Galactic supernova remnants [PDF]
, 2015 The residence time of cosmic rays (CRs) in the Galaxy is usually inferred from the measurement of the ratio of secondary-to-primary nuclei, for instance the boron (B)/carbon (C) ratio, which provides an estimate of the amount of matter traversed by CRs ...
M. D’Angelo, P. Blasi, E. Amato
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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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