# Direct Numerical Simulations of Cosmic-ray Acceleration at Dense Circumstellar Medium: Magnetic-field Amplification and Maximum Energy

@article{Inoue2021DirectNS,
title={Direct Numerical Simulations of Cosmic-ray Acceleration at Dense Circumstellar Medium: Magnetic-field Amplification and Maximum Energy},
author={Tsuyoshi Inoue and Alexandre Marcowith and Gwenael Giacinti and Allard Jan van Marle and Sho Nishino},
journal={The Astrophysical Journal},
year={2021},
volume={922}
}
• Published 30 August 2021
• Physics
• The Astrophysical Journal
Galactic cosmic rays are believed to be accelerated at supernova remnants. However, whether supernova remnants can be PeV is still very unclear. In this work we argue that PeV cosmic rays can be accelerated during the early phase of a supernova blast-wave expansion in dense red supergiant winds. We solve in spherical geometry a system combining a diffusive–convection equation that treats cosmic-ray dynamics coupled to magnetohydrodynamics to follow gas dynamics. A fast shock expanding in a…
5 Citations
• Physics
The Astrophysical Journal
• 2022
The current paradigm of cosmic-ray (CR) origin states that the greater part of galactic CRs is produced by supernova remnants. The interaction of supernova ejecta with the interstellar medium after a
• Physics
Physical Review D
• 2022
We investigate the escape process of cosmic rays (CRs) from perpendicular shock regions of a spherical shock propagating to a circumstellar medium with the Parker-spiral magnetic ﬁeld. The diﬀusive
• Physics
The Astrophysical Journal
• 2022
The contribution of galactic supernova remnants (SNRs) to the origin of cosmic rays (CRs) is an important open question in modern astrophysics. Broadband nonthermal emission is a useful proxy for
• Physics
The Astrophysical Journal
• 2022
Supernova remnants (SNRs) are thought to be the most promising sources of Galactic cosmic rays. One of the principal questions is whether they are accelerating particles up to the maximum energy of
• Physics
Reviews of Modern Plasma Physics
• 2022
Thanks to advances in $$\gamma$$ γ -ray astronomy and precise measurements of cosmic ray (CR) properties, the last decade has witnessed significant progresses in our understanding of the origin of

## References

SHOWING 1-10 OF 33 REFERENCES

• Physics
• 2013
We investigate the appearance of magnetic field amplification resulting from a cosmic ray escape current in the context of supernova remnant shock waves. The current is inversely proportional to the
• Physics
The Astrophysical Journal
• 2019
Supernovae (SNe) with strong interactions with circumstellar material (CSM) are promising candidate sources of high-energy neutrinos and gamma-rays and have been suggested as an important contributor
• T. Inoue
• Physics
The Astrophysical Journal
• 2019
Supernova remnants (SNRs) are believed to be the site of galactic cosmic-ray acceleration. However, the details of the cosmic-ray acceleration are still not well understood. Gamma-ray observation is
Aims. The extensive observations of the supernova SN 1993J at radio wavelengths make this object a unique target for the study of particle acceleration in a supernova shock. Methods. To describe the
• Physics
• 2013
The self-consistent interaction between energetic particles and self-generated hydromagnetic waves in a cosmic-ray pressure dominated plasma is considered. Using a three-dimensional hybrid
• Physics
• 2021
Synchrotron radio emission from non-relativistic jets powered by massive protostars has been reported, indicating the presence of relativistic electrons and magnetic fields of strength ~0.3-5 mG. We
• Physics
Monthly Notices of the Royal Astronomical Society
• 2020
Some core-collapse supernovae are likely to be efficient cosmic ray accelerators up to the PeV range, and therefore, to potentially play an important role in the overall Galactic cosmic ray
• Physics
• 2018
We present simulations of magnetized astrophysical shocks taking into account the interplay between the thermal plasma of the shock and suprathermal particles. Such interaction is depicted by