Electron acceleration at a coronal shock propagating through a large-scale streamer-like magnetic field
Abstract
With a test-particle simulation, we investigate the effect of large-scale coronal magnetic fields on electron acceleration at an outward-propagating coronal shock with a circular front. The coronal field is approximated by an analytical solution with a streamer-like magnetic field featured by partially open magnetic field and a current sheet at the equator atop the closed region. We show that the large-scale shock-field configuration, especially the relative curvature of the shock and the magnetic field line across which the shock is sweeping, plays an important role in the efficiency of electron acceleration. At low shock altitudes, when the shock curvature is larger than that of magnetic field lines, the electrons are mainly accelerated at the shock flanks; at higher altitudes, when the shock curvature is smaller, the electrons are mainly accelerated at the shock nose around the top of closed field lines. The above process reveals the shift of efficient electron acceleration region along the shock front during its propagation. We also found that in general the electron acceleration at the shock flank is not so efficient as that at the top of closed field since at the top a collapsing magnetic trap can be formed. In addition, we find thatmore »
- Authors:
-
- Shandong Univ., Jinan (China). Shandong Provincial Key Lab. of Optical Astronomy and Solar-Terrestrial Environment, and Inst. of Space Sciences
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
- Univ. of Alabama in Huntsville, Huntsville, AL (United States). Dept. of Space Science and CSPAR
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE; Shandong Universit; Natural Science Foundation of Shandong Province
- OSTI Identifier:
- 1338739
- Report Number(s):
- LA-UR-16-20148
Journal ID: ISSN 1538-4357
- Grant/Contract Number:
- AC52-06NA25396; ATM-0847719; AGS1135432; ZR2014DQ001; ZR2013DQ004; NSBRSF 2012CB825601; NNSFC 11503014; 41274175; 41331068; U1431103
- Resource Type:
- Accepted Manuscript
- Journal Name:
- The Astrophysical Journal (Online)
- Additional Journal Information:
- Journal Name: The Astrophysical Journal (Online); Journal Volume: 821; Journal Issue: 1; Journal ID: ISSN 1538-4357
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; 79 ASTRONOMY AND ASTROPHYSICS; Astronomy and Astrophysics; acceleration of particles; shock waves; Sun: coronal mass ejections; (CMEs); Sun: radio radiation
Citation Formats
Kong, Xiangliang, Chen, Yao, Guo, Fan, Feng, Shiwei, Du, Guohui, and Li, Gang. Electron acceleration at a coronal shock propagating through a large-scale streamer-like magnetic field. United States: N. p., 2016.
Web. doi:10.3847/0004-637X/821/1/32.
Kong, Xiangliang, Chen, Yao, Guo, Fan, Feng, Shiwei, Du, Guohui, & Li, Gang. Electron acceleration at a coronal shock propagating through a large-scale streamer-like magnetic field. United States. https://doi.org/10.3847/0004-637X/821/1/32
Kong, Xiangliang, Chen, Yao, Guo, Fan, Feng, Shiwei, Du, Guohui, and Li, Gang. Tue .
"Electron acceleration at a coronal shock propagating through a large-scale streamer-like magnetic field". United States. https://doi.org/10.3847/0004-637X/821/1/32. https://www.osti.gov/servlets/purl/1338739.
@article{osti_1338739,
title = {Electron acceleration at a coronal shock propagating through a large-scale streamer-like magnetic field},
author = {Kong, Xiangliang and Chen, Yao and Guo, Fan and Feng, Shiwei and Du, Guohui and Li, Gang},
abstractNote = {With a test-particle simulation, we investigate the effect of large-scale coronal magnetic fields on electron acceleration at an outward-propagating coronal shock with a circular front. The coronal field is approximated by an analytical solution with a streamer-like magnetic field featured by partially open magnetic field and a current sheet at the equator atop the closed region. We show that the large-scale shock-field configuration, especially the relative curvature of the shock and the magnetic field line across which the shock is sweeping, plays an important role in the efficiency of electron acceleration. At low shock altitudes, when the shock curvature is larger than that of magnetic field lines, the electrons are mainly accelerated at the shock flanks; at higher altitudes, when the shock curvature is smaller, the electrons are mainly accelerated at the shock nose around the top of closed field lines. The above process reveals the shift of efficient electron acceleration region along the shock front during its propagation. We also found that in general the electron acceleration at the shock flank is not so efficient as that at the top of closed field since at the top a collapsing magnetic trap can be formed. In addition, we find that the energy spectra of electrons is power-law like, first hardening then softening with the spectral index varying in a range of -3 to -6. In conclusion, physical interpretations of the results and implications on the study of solar radio bursts are discussed.},
doi = {10.3847/0004-637X/821/1/32},
journal = {The Astrophysical Journal (Online)},
number = 1,
volume = 821,
place = {United States},
year = {Tue Apr 05 00:00:00 EDT 2016},
month = {Tue Apr 05 00:00:00 EDT 2016}
}
Web of Science
Works referenced in this record:
Radio Imaging of Shock-Accelerated Electrons Associated with an Erupting Plasmoid on 2010 November 3
journal, April 2012
- Bain, H. M.; Krucker, Säm; Glesener, L.
- The Astrophysical Journal, Vol. 750, Issue 1
The source region of an interplanetary type II radio burst
journal, June 1999
- Bale, S. D.; Reiner, M. J.; Bougeret, J. -L.
- Geophysical Research Letters, Vol. 26, Issue 11
Shock Drift Acceleration of Electrons
journal, January 2001
- Ball, Lewis; Melrose, D. B.
- Publications of the Astronomical Society of Australia, Vol. 18, Issue 4
The acceleration of cosmic rays in shock fronts - I
journal, February 1978
- Bell, A. R.
- Monthly Notices of the Royal Astronomical Society, Vol. 182, Issue 2
Plasma Physical Parameters Along Coronal-Mass-Ejection-Driven Shocks. i. Ultraviolet and White-Light Observations
journal, March 2014
- Bemporad, A.; Susino, R.; Lapenta, G.
- The Astrophysical Journal, Vol. 784, Issue 2
Particle acceleration by astrophysical shocks
journal, April 1978
- Blandford, R. D.; Ostriker, J. P.
- The Astrophysical Journal, Vol. 221
Simulations of Electron Acceleration at Collisionless Shocks: The Effects of Surface Fluctuations
journal, December 2006
- Burgess, D.
- The Astrophysical Journal, Vol. 653, Issue 1
Quasiperiodic acceleration of electrons by a plasmoid-driven shock in the solar atmosphere
journal, October 2013
- Carley, Eoin P.; Long, David M.; Byrne, Jason P.
- Nature Physics, Vol. 9, Issue 12
A Solar type ii Radio Burst from Coronal mass Ejection-Coronal ray Interaction: Simultaneous Radio and Extreme Ultraviolet Imaging
journal, May 2014
- Chen, Yao; Du, Guohui; Feng, Li
- The Astrophysical Journal, Vol. 787, Issue 1
A Two-Dimensional Alfvén-Wave-Driven Solar Wind Model
journal, January 2001
- Chen, Y.; Hu, Y. Q.
- Solar Physics, Vol. 199, Issue 2, p. 371-384
Low coronal observations of metric type II associated CMEs by MLSO coronameters
journal, August 2008
- Cho, K. -S.; Bong, S. -C.; Kim, Y. -H.
- Astronomy & Astrophysics, Vol. 491, Issue 3
Magnetic Field Strength in the Solar Corona from Type II Band Splitting
journal, August 2007
- Cho, K. ‐S.; Lee, J.; Gary, D. E.
- The Astrophysical Journal, Vol. 665, Issue 1
Temporal Spectral Shift and Polarization of a Band-Splitting Solar type ii Radio Burst
journal, September 2014
- Du, Guohui; Chen, Yao; Lv, Maoshui
- The Astrophysical Journal, Vol. 793, Issue 2
An Observational Revisit of Band-Split Solar Type-Ii Radio Bursts
journal, October 2015
- Du, Guohui; Kong, Xiangliang; Chen, Yao
- The Astrophysical Journal, Vol. 812, Issue 1
Evidence of a blast shock wave formation in a “CME–streamer” interaction
journal, December 2015
- Eselevich, V. G.; Eselevich, M. V.; Sadykov, V. M.
- Advances in Space Research, Vol. 56, Issue 12
Radio Signatures of Coronal-Mass-Ejection-Streamer Interaction and Source Diagnostics of type ii Radio Burst
journal, June 2012
- Feng, S. W.; Chen, Y.; Kong, X. L.
- The Astrophysical Journal, Vol. 753, Issue 1
Diagnostics on the Source Properties of a type ii Radio Burst with Spectral Bumps
journal, March 2013
- Feng, S. W.; Chen, Y.; Kong, X. L.
- The Astrophysical Journal, Vol. 767, Issue 1
Simultaneous Radio and EUV Imaging of a Multi-lane Coronal Type II Radio Burst
journal, April 2015
- Feng, S. W.; Du, G. H.; Chen, Y.
- Solar Physics, Vol. 290, Issue 4
Particle Acceleration at Shocks Moving through an Irregular Magnetic Field
journal, May 2005
- Giacalone, Joe
- The Astrophysical Journal, Vol. 624, Issue 2
The Effect of Large-Scale Magnetic Turbulence on the Acceleration of Electrons by Perpendicular Collisionless Shocks
journal, April 2010
- Guo, Fan; Giacalone, Joe
- The Astrophysical Journal, Vol. 715, Issue 1
Particle Acceleration at a Flare Termination Shock: Effect of Large-Scale Magnetic Turbulence
journal, June 2012
- Guo, Fan; Giacalone, Joe
- The Astrophysical Journal, Vol. 753, Issue 1
The Acceleration of Thermal Protons at Parallel Collisionless Shocks: Three-Dimensional Hybrid Simulations
journal, August 2013
- Guo, Fan; Giacalone, Joe
- The Astrophysical Journal, Vol. 773, Issue 2
The Acceleration of Electrons at Collisionless Shocks Moving Through a Turbulent Magnetic Field
journal, March 2015
- Guo, Fan; Giacalone, and Joe
- The Astrophysical Journal, Vol. 802, Issue 2
Particle Acceleration by Collisionless Shocks Containing Large-Scale Magnetic-Field Variations
journal, November 2010
- Guo, F.; Jokipii, J. R.; Kota, J.
- The Astrophysical Journal, Vol. 725, Issue 1
Solar type II radio emission and the shock drift acceleration of electrons
journal, April 1983
- Holman, G. D.; Pesses, M. E.
- The Astrophysical Journal, Vol. 267
Are coronal holes the only source of fast solar wind at solar minimum?
journal, January 2003
- Hu, Y. Q.
- Journal of Geophysical Research, Vol. 108, Issue A10
Equilibrium and catastrophe of coronal flux ropes in axisymmetrical magnetic field: EQUILIBRIUM AND CATASTROPHE OF CORONAL FLUX ROPES
journal, February 2003
- Hu, Y. Q.; Li, G. Q.; Xing, X. Y.
- Journal of Geophysical Research: Space Physics, Vol. 108, Issue A2
Theory of type II radio emission from the foreshock of an interplanetary shock
journal, November 2001
- Knock, S. A.; Cairns, Iver H.; Robinson, P. A.
- Journal of Geophysical Research: Space Physics, Vol. 106, Issue A11
Theoretically predicted properties of type II radio emission from an interplanetary foreshock
journal, January 2003
- Knock, S. A.
- Journal of Geophysical Research, Vol. 108, Issue A3
The Possible role of Coronal Streamers as Magnetically Closed Structures in Shock-Induced Energetic Electrons and Metric type ii Radio Bursts
journal, December 2014
- Kong, Xiangliang; Chen, Yao; Guo, Fan
- The Astrophysical Journal, Vol. 798, Issue 2
A Broken Solar type ii Radio Burst Induced by a Coronal Shock Propagating Across the Streamer Boundary
journal, April 2012
- Kong, X. L.; Chen, Y.; Li, G.
- The Astrophysical Journal, Vol. 750, Issue 2
Models of partially open magnetospheres with and without magnetodisks
journal, November 1986
- Low, B. C.
- The Astrophysical Journal, Vol. 310
Observations and Interpretation of a low Coronal Shock wave Observed in the euv by the Sdo/Aia
journal, August 2011
- Ma, Suli; Raymond, John C.; Golub, Leon
- The Astrophysical Journal, Vol. 738, Issue 2
Tracking the Cme-Driven Shock wave on 2012 March 5 and Radio Triangulation of Associated Radio Emission
journal, August 2014
- Magdalenić, J.; Marqué, C.; Krupar, V.
- The Astrophysical Journal, Vol. 791, Issue 2
Coronal transients and metric type II radio bursts: I. Effects of geometry
journal, December 2003
- Mancuso, S.; Raymond, J. C.
- Astronomy & Astrophysics, Vol. 413, Issue 1
Kinetic Physics of the Solar Corona and Solar Wind
journal, January 2006
- Marsch, Eckart
- Living Reviews in Solar Physics, Vol. 3
Fermi Acceleration in Plasmoids Interacting with Fast Shocks of Reconnection via Fractal Reconnection
journal, January 2013
- Nishizuka, Naoto; Shibata, Kazunari
- Physical Review Letters, Vol. 110, Issue 5
Structure on Interplanetary Shock Fronts: Type II Radio Burst Source Regions
journal, April 2008
- Pulupa, M.; Bale, S. D.
- The Astrophysical Journal, Vol. 676, Issue 2
Constraints on Coronal Mass Ejection Dynamics from Simultaneous Radio and White‐Light Observations
journal, June 2003
- Reiner, M. J.; Vourlidas, A.; Cyr, O. C. St.
- The Astrophysical Journal, Vol. 590, Issue 1
Source Region of the Decameter–Hectometric Type II Radio Burst: Shock–Streamer Interaction Region
journal, November 2012
- Shen, Chenglong; Liao, Chijian; Wang, Yuming
- Solar Physics, Vol. 282, Issue 2
Collisionless Reconnection and High‐Energy Particle Acceleration in Solar Flares
journal, August 1997
- Somov, Boris V.; Kosugi, Takeo
- The Astrophysical Journal, Vol. 485, Issue 2
Physical Conditions of Coronal Plasma at the Transit of a Shock Driven by a Coronal mass Ejection
journal, October 2015
- Susino, R.; Bemporad, A.; Mancuso, S.
- The Astrophysical Journal, Vol. 812, Issue 2
Derivation of the Magnetic Field in a Coronal mass Ejection core via Multi-Frequency Radio Imaging
journal, March 2013
- Tun, Samuel D.; Vourlidas, A.
- The Astrophysical Journal, Vol. 766, Issue 2
Investigation of the Coronal Magnetic Field Using a Type II Solar Radio Burst
journal, June 2013
- Vasanth, V.; Umapathy, S.; Vršnak, Bojan
- Solar Physics, Vol. 289, Issue 1
Direct Detection of a Coronal Mass Ejection–Associated Shock in Large Angle and Spectrometric Coronagraph Experiment White‐Light Images
journal, December 2003
- Vourlidas, A.; Wu, S. T.; Wang, A. H.
- The Astrophysical Journal, Vol. 598, Issue 2
Origin of Coronal Shock Waves: Invited Review
journal, July 2008
- Vršnak, Bojan; Cliver, Edward W.
- Solar Physics, Vol. 253, Issue 1-2
A fast Fermi process: Energetic electrons accelerated by a nearly perpendicular bow shock
journal, January 1984
- Wu, C. S.
- Journal of Geophysical Research, Vol. 89, Issue A10
Spatially resolved observations of a coronal type II radio burst with multiple lanes
journal, December 2015
- Zimovets, I. V.; Sadykov, V. M.
- Advances in Space Research, Vol. 56, Issue 12
Spatially resolved observations of a split-band coronal type II radio burst
journal, October 2012
- Zimovets, I.; Vilmer, N.; Chian, A. C. -L.
- Astronomy & Astrophysics, Vol. 547
Works referencing / citing this record:
Interplanetary type II radio bursts and their association with CMEs and flares
journal, May 2018
- Shanmugaraju, A.; Suresh, K.; Vasanth, V.
- Astrophysics and Space Science, Vol. 363, Issue 6
Investigation of the possible source for the solar energetic particle event on 2017 September 10
journal, July 2018
- Zhao, Ming-Xian; Le, Gui-Ming; Chi, Yu-Tian
- Research in Astronomy and Astrophysics, Vol. 18, Issue 7
The Acceleration of High-energy Protons at Coronal Shocks: The Effect of Large-scale Streamer-like Magnetic Field Structures
journal, December 2017
- Kong, Xiangliang; Guo, Fan; Giacalone, Joe
- The Astrophysical Journal, Vol. 851, Issue 1
Corrugated Features in Coronal-mass-ejection-driven Shocks: A Discussion on the Predisposition to Particle Acceleration
journal, July 2019
- Páez, A.; Jatenco-Pereira, V.; Falceta-Gonçalves, D.
- The Astrophysical Journal, Vol. 879, Issue 2
The Acceleration of Energetic Particles at Coronal Shocks and Emergence of a Double Power-law Feature in Particle Energy Spectra
journal, September 2019
- Kong, Xiangliang; Guo, Fan; Chen, Yao
- The Astrophysical Journal, Vol. 883, Issue 1
The Acceleration and Confinement of Energetic Electrons by a Termination Shock in a Magnetic Trap: An Explanation for Nonthermal Loop-top Sources during Solar Flares
journal, December 2019
- Kong, Xiangliang; Guo, Fan; Shen, Chengcai
- The Astrophysical Journal, Vol. 887, Issue 2
The acceleration of high-energy protons at coronal shocks: the effect of large-scale streamer-like magnetic field structures
text, January 2017
- Kong, Xiangliang; Guo, Fan; Giacalone, Joe
- arXiv
The Acceleration of Energetic Particles at Coronal Shocks and Emergence of a Double Power Law Feature in Particle Energy Spectra
text, January 2019
- Kong, Xiangliang; Guo, Fan; Chen, Yao
- arXiv