The connection between supernova remnants and the Galactic magnetic field: An analysis of quasi-parallel and quasi-perpendicular cosmic ray acceleration for the axisymmetric sample
arXiv:1609.02887 · doi:10.1051/0004-6361/201628079
Abstract
The mechanism for acceleration of cosmic rays in supernova remnants (SNRs) is an outstanding question in the field. We model a sample of 32 axisymmetric SNRs using the quasi-perpendicular and quasi-parallel cosmic-ray-electron (CRE) acceleration cases. The axisymmetric sample is defined to include SNRs with a double-sided, bilateral morphology, and also those with a one-sided morphology where one limb is much brighter than the other. Using a coordinate transformation technique, we insert a bubble-like model SNR into a model of the Galactic magnetic field. Since radio emission of SNRs is dominated by synchrotron emission and since this emission depends on the magnetic field and CRE distribution, we are able to simulate the SNRs emission and compare this to data. We find that the quasi-perpendicular CRE acceleration case is much more consistent with the data than the quasi-parallel CRE acceleration case, with G327.6+14.6 (SN1006) being a notable exception. We propose that SN1006 may be a case where both quasi-parallel and quasi-perpendicular acceleration are simultaneously at play in a single SNR.
arXiv comment22 pages, 6 figures
References in corpus (32)
- Astropy: A Community Python Package for Astronomy
- A New Model of the Galactic Magnetic Field
- Simulations of Ion Acceleration at Non-relativistic Shocks. I. Acceleration Efficiency
- Radio observational constraints on Galactic 3D-emission models
- Fine Structures of Shock of SN 1006 with the Chandra Observation
- A Census of High-Energy Observations of Galactic Supernova Remnants
- Simulations of Ion Acceleration at Non-relativistic Shocks. II. Magnetic Field Amplification
- The Youngest Galactic Supernova Remnant: G1.9+0.3
- The SN 1006 Remnant: Optical Proper Motions, Deep Imaging, Distance, and Brightness at Maximum
- First detection of VHE gamma-rays from SN 1006 by H.E.S.S
- Magnetic fields in supernova remnants and pulsar-wind nebulae
- Instabilities and Clumping in Type Ia Supernova Remnants
- Simulating polarized Galactic synchrotron emission at all frequencies, the Hammurabi code
- On the Radio Polarization Signature of Efficient and Inefficient Particle Acceleration in Supernova Remnant SN 1006
- A Sino-German 6cm polarization survey of the Galactic plane VII. Small supernova remnants
- On the Origin of Asymmetries in Bilateral Supernova Remnants
- The radio expansion and brightening of the very young supernova remnant G1.9+0.3
- Expansion of the Youngest Galactic Supernova Remnant G1.9+0.3
- A Sino-German 6 cm polarization survey of the Galactic plane II. The region from 129 degree to 230 degree longitude
- Origin of Radially Aligned Magnetic Fields in Young Supernova Remnants
- Electron Accelerations at High Mach Number Shocks: Two-Dimensional Particle-In-Cell Simulations in Various Parameter Regimes
- Electron acceleration in a nonrelativistic shock with very high Alfvén Mach number
- An Integral View of Fast Shocks around Supernova 1006
- Aspect angle for interstellar magnetic field in SN 1006
- The Connection between Supernova Remnants and the Galactic Magnetic Field: A Global Radio Study of the Axisymmetric Sample
- Constraints on local interstellar magnetic field from non-thermal emission of SN1006
- 3D MHD simulation of polarized emission in SN 1006
- The radio SNR G65.1+0.6 and its associated pulsar J1957+2831
- An MHD study of SN 1006 and determination of the ambient magnetic field direction
- New 6cm and 11cm observations of the supernova remnant CTA 1
- Fine Structure of the Thermal and Non-Thermal X-Rays in the SN 1006 Shell
- Radio, X-ray and gamma-ray surface brightness profiles as powerful diagnostic tools for non-thermal SNR shells
Cited by in corpus (11)
- Mysterious Odd Radio Circle near the Large Magellanic Cloud -- An Intergalactic Supernova Remnant?
- When disorder looks like order: a new model to explain radial magnetic fields in young supernova remnants
- Amplification of perpendicular and parallel magnetic fields by cosmic ray currents
- The Morphologies and Kinematics of Supernova Remnants
- A Deep X-ray View of the Synchrotron-Dominated Supernova Remnant G330.2+1.0
- The Age Evolution of the Radio Morphology of Supernova Remnants
- Quasi-perpendicular shock acceleration and TDE radio flares
- A New Distance to the Supernova Remnant DA 530 Based on HI Absorption of Polarized Emission
- Electron Energization in Quasi-Parallel Shocks: Test-Particle-Electrons in a Proton Driven Turbulence
- Modeling Hadronic Gamma-ray Emissions from Solar Flares and Prospects for Detecting Non-thermal Signatures from Protostars
- On the Potential of Faraday Tomography to Identify Shock Structures in Supernova Remnants