Supernova Remnants as Sources of Cosmic Rays and Nonthermal Emission

2019 ◽  
Vol 82 (6) ◽  
pp. 816-821
Author(s):  
V. N. Zirakashvili ◽  
V. S. Ptuskin
Keyword(s):  
Cosmic Rays ◽  
Supernova Remnants ◽  
Nonthermal Emission

Supernova Remnants: An Introductory Review

2004 ◽  
Vol 218 ◽  
pp. 57-64
Author(s):  
Jacco Vink
Keyword(s):  
Cosmic Rays ◽  
Supernova Remnants ◽  
Supernova Remnant ◽  
Cosmic Ray ◽  
Recent Advances ◽  
Cosmic Ray Acceleration ◽  
Introductory Review

The two main aspects of supernova remnant research addressed in this review are: I. What is our understanding of the progenitors of the observed remnants, and what have we learned from these remnants about supernova nucleosynthesis? II. Supernova remnants are probably the major source of cosmic rays. What are the recent advances in the observational aspects of cosmic ray acceleration in supernova remnants?

scholarly journals Spectrum of galactic cosmic rays accelerated in supernova remnants

2011 ◽  
Vol 75 (3) ◽  
pp. 299-301
Author(s):  
V. N. Zirakashvili ◽  
V. S. Ptuskin ◽  
E. S. Seo
Keyword(s):  
Cosmic Rays ◽  
Supernova Remnants ◽  
Galactic Cosmic Rays

scholarly journals Non-thermal radiation from molecular clouds illuminated by cosmic rays from nearby supernova remnants.

2008 ◽  
Author(s):  
Stefano Gabici ◽  
Sabrina Casanova ◽  
Felix A. Aharonian ◽  
Felix A. Aharonian ◽  
Werner Hofmann ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Thermal Radiation ◽  
Molecular Clouds ◽  
Supernova Remnants

scholarly journals Production of Secondary Cosmic Rays in Supernova Remnants

2016 ◽  
Author(s):  
Leonid Ksenofontov ◽  
Evgeny Berezhko
Keyword(s):  
Cosmic Rays ◽  
Supernova Remnants

scholarly journals SNR G39.2−0.3, an hadronic cosmic rays accelerator

2020 ◽  
Vol 497 (3) ◽  
pp. 3581-3590
Author(s):  
Emma de Oña Wilhelmi ◽  
Iurii Sushch ◽  
Robert Brose ◽  
Enrique Mestre ◽  
Yang Su ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Cosmic Rays ◽  
Supernova Remnants ◽  
Gamma Ray ◽  
Spectral Energy Distribution ◽  
Galactic Cosmic Rays ◽  
Spectral Energy ◽  
Core Collapse ◽  
Heavy Nuclei ◽  
The Rich

ABSTRACT Recent results obtained with gamma-ray satellites have established supernova remnants as accelerators of GeV hadronic cosmic rays. In such processes, CRs accelerated in SNR shocks interact with particles from gas clouds in their surrounding. In particular, the rich medium in which core-collapse SNRs explode provides a large target density to boost hadronic gamma-rays. SNR G39.2–0.3 is one of the brightest SNR in infrared wavelengths, and its broad multiwavelength coverage allows a detailed modelling of its radiation from radio to high energies. We reanalysed the Fermi-LAT data on this region and compare it with new radio observations from the MWISP survey. The modelling of the spectral energy distribution from radio to GeV energies favours a hadronic origin of the gamma-ray emission and constrains the SNR magnetic field to be at least ∼100 µG. Despite the large magnetic field, the present acceleration of protons seems to be limited to ∼10 GeV, which points to a drastic slow down of the shock velocity due to the dense wall traced by the CO observations, surrounding the remnant. Further investigation of the gamma-ray spectral shape points to a dynamically old remnant subjected to severe escape of CRs and a decrease of acceleration efficiency. The low-energy peak of the gamma-ray spectrum also suggests that that the composition of accelerated particles might be enriched by heavy nuclei which is certainly expected for a core-collapse SNR. Alternatively, the contribution of the compressed pre-existing Galactic cosmic rays is discussed, which is, however, found to not likely be the dominant process for gamma-ray production.

scholarly journals Distances of Galactic supernova remnants

2013 ◽  
Vol 9 (S296) ◽  
pp. 378-379 ◽  
Author(s):  
Hui Zhu ◽  
Wenwu Tian
Keyword(s):  
Cosmic Rays ◽  
Interstellar Medium ◽  
Supernova Remnants ◽  
Galactic Cosmic Rays ◽  
Distance Measurement ◽  
Explosion Energy ◽  
Chemical Enrichment ◽  
Basic Parameters ◽  
Co Emission

AbstractSupernova remnants (SNRs) play a key role in understanding supernovae explosion mechanisms, exploring the likely sources of Galactic cosmic rays and the chemical enrichment of interstellar medium (ISM). Reliable distance determinations to Galactic SNRs are key to obtain their basic parameters, such as size, age, explosion energy, which helps us to study their environment and interstellar medium. We review the methods to determine the distances to SNRs and highlight the kinematic distance measurement by Hi absorption and CO emission observations.

Cosmic Rays in Supernova Remnants and the Galaxy

2008 ◽  
Author(s):  
Luke O’C. Drury ◽  
Gang Li ◽  
Qiang Hu ◽  
Olga Verkhoglyadova ◽  
Gary P. Zank ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Supernova Remnants ◽  
The Galaxy

Magnetized supernova remnants with cosmic rays

1991 ◽  
Vol 383 ◽  
pp. 602 ◽  
Author(s):  
Katia M. Ferriere ◽  
Ellen G. Zweibel
Keyword(s):  
Cosmic Rays ◽  
Supernova Remnants
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