Results 1 to 10 of about 37,813 (241)

The supernova remnant SN 1006 as a Galactic particle accelerator [PDF]

open access: yesNature Communications, 2022
It is known that cosmic rays could be accelerated by shock waves in supernova (SN) remnants. Here, the authors show that SN 1006 remnant is an efficient source of cosmic rays, providing observational support for the quasi-parallel acceleration mechanism.
Roberta Giuffrida   +8 more
doaj   +2 more sources

Multifrequency radio observations of a SNR in the LMC: The case of SNR J0527-6549 (DEM l204) [PDF]

open access: yesSerbian Astronomical Journal, 2010
We present a detailed study and results of new Australia Telescope Compact Array (ATCA) observations of supernova remnant SNR J0527-6549. This Large Magellanic Cloud (LMC) object follows a typical supernova remnant (SNR) horseshoe morphology ...
Bozzetto L.M.   +7 more
doaj   +7 more sources

Supernova Remnants [PDF]

open access: bronzeInternational 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 ...
S. A. E. G. Falle
openalex   +2 more sources

Supernovae and Supernova, Remnants

open access: bronzeThe Astronomical Journal, 1968
Supernovae remnants evolution, properties and galactic distribution, discussing criteria for catalog listing and remnants as X ray ...
Arcadio Poveda, L. Woltjer
openalex   +2 more sources

Far-Ultraviolet Cooling Features of the Antlia Supernova Remnant [PDF]

open access: green, 2007
We present far-ultraviolet observations of the Antlia supernova remnant obtained with Far-ultraviolet IMaging Spectrograph (FIMS, also called SPEAR). The strongest lines observed are C IV 1548,1551 and C III 977.
Edelstein, Jerry   +9 more
core   +2 more sources

Failed supernova remnants [PDF]

open access: yesPublications 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
openaire   +2 more sources

Particle propagation in clumpy supernova remnants [PDF]

open access: yesEPJ Web of Conferences, 2019
The presence of dense clumps in the environment where a supernova remnant expands might have a strong impact in shaping the observed hadronic gamma-ray spectrum.
Celli Silvia
doaj   +1 more source

How Tycho Brahe’s recordings in 1572 support SN 1572 as a type I(a) supernova

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The 450th anniversary of the discovery of the SN 1572 supernova event was celebrated in 2022. A closer look at the historical development of the field of supernova astronomy reveals the scientific importance of Tycho Brahe’s 1572 observations of this ...
Tobias C. Hinse   +5 more
doaj   +1 more source

A new numerical code for hydrodynamical 3D simulations of supernova remnants [PDF]

open access: yesSerbian Astronomical Journal, 2019
We develop a 3D hydrodynamical code written in C programming language to study the expansion of supernova remnants (SNRs) in the surrounding medium. It is based on the MUSCL-Hancock finite volume scheme with the HLLC Riemann solver.
Kostić P.
doaj   +1 more source

Electron–Ion Temperature Ratio in Astrophysical Shocks

open access: yesThe Astrophysical Journal, 2023
Collisionless shock waves in supernova remnants and the solar wind heat electrons less effectively than they heat ions, as is predicted by kinetic simulations.
John C. Raymond   +11 more
doaj   +1 more source

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