Results 71 to 80 of about 199,466 (288)

New Distances to Four Supernova Remnants

open access: yesOpen Physics Journal, 2017
Distances are found for four supernova remnants without previous distance measurements. H I spectra and H I channel maps are used to determine the maximum velocity of H I absorption for the four Supernova Remnants (SNRs). We examined 13CO emission
S. Ranasinghe, D. Leahy, W. Tian
semanticscholar   +1 more source

Multifrequency observations of one of the largest supernova remnants in the local group of galaxies, LMC - SNR J0450-709 [PDF]

open access: yesSerbian Astronomical Journal, 2009
We present the results of new Australia Telescope Compact Array (ATCA) observations of one of the largest supernova remnants, SNR J0450-709, in the Local Group of galaxies.
Čajko K.O.   +2 more
doaj   +3 more sources

Gamma-ray emission from young supernova remnants: Hadronic or leptonic?

open access: yesEPJ Web of Conferences, 2016
The debate on the nature of the gamma-ray emission from young supernova remnants is still open. Ascribing such emission to hadronic rather than leptonic processes would provide an evidence for the acceleration of protons and nuclei, and this fact would ...
Gabici Stefano, Aharonian Felix
doaj   +1 more source

Molecules and dust in Cassiopeia A - II. Dust sputtering and diagnosis of supernova dust survival in remnants [PDF]

open access: yes, 2015
We study the dust evolution in the supernova remnant Cassiopeia A. We follow the processing of dust grains that formed in the Type II-b supernova ejecta by modelling the sputtering of grains. The dust is located in dense ejecta clumps that are crossed by
C. Biscaro, I. Cherchneff
semanticscholar   +1 more source

Generation of Cosmic rays in Historical Supernova Remnants

open access: yesEPJ Web of Conferences, 2013
We present the results of observations of two types of Galactic supernova remnants with the SHALON mirror Cherenkov telescope of Tien-Shan high-mountain Observatory: the shell-type supernova remnants Tycho, Cas A and IC 443; plerions Crab Nebula, 3c58 ...
Sinitsyna V.Y., Sinitsyna V.G.
doaj   +1 more source

Multi-Wavelength View of Supernova Remnants

open access: yesActa Polytechnica CTU Proceedings, 2014
This contribution gives a very short overview on the emission of supernova remnants and the processes that are responsible for both the thermal and non-thermal origins of the emission, typically observed in radio, X-rays, and up to gamma-rays. We discuss
Manami Sasaki
doaj   +1 more source

EMU Detection of a Large and Low Surface Brightness Galactic SNR G288.8–6.3

open access: yesThe 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
doaj   +1 more source

DISCRIMINATING THE PROGENITOR TYPE OF SUPERNOVA REMNANTS WITH IRON K-SHELL EMISSION [PDF]

open access: yes, 2014
Supernova remnants (SNRs) retain crucial information about both their parent explosion and circumstellar material left behind by their progenitor. However, the complexity of the interaction between supernova ejecta and ambient medium often blurs this ...
H. Yamaguchi   +13 more
semanticscholar   +1 more source

Practical Aspects of X-ray Imaging Polarimetry of Supernova Remnants and Other Extended Sources

open access: yesGalaxies, 2018
The new generation of X-ray polarisation detectors, the gas pixel detectors, which will be employed by the future space missions IXPE and eXTP, allows for spatially resolved X-ray polarisation studies.
Jacco Vink, Ping Zhou
doaj   +1 more source

A Statistical Analysis of Galactic Radio Supernova Remnants

open access: yesThe 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
doaj   +1 more source

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