Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons

Abstract Using the hybrid finite difference method, we solve the Fokker-Planck equation to study the effect of seed electron injection on acceleration of radiation belt electrons driven by chorus waves. Numerical results show that in the absence of injection chorus waves can accelerate electrons at...
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Autor*in:	Yan, Qi [verfasserIn] Shi, LiQing [verfasserIn] Liu, SiQing [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2012

Schlagwörter:	seed electrons chorus waves radiation belt electrons

Übergeordnetes Werk:	Enthalten in: Science in China - Heidelberg : Springer, 1997, 56(2012), 2 vom: 08. Nov., Seite 492-498
Übergeordnetes Werk:	volume:56 ; year:2012 ; number:2 ; day:08 ; month:11 ; pages:492-498

Links:	Volltext

DOI / URN:	10.1007/s11431-012-5078-0

Katalog-ID:	SPR019278802

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520			\|a Abstract Using the hybrid finite difference method, we solve the Fokker-Planck equation to study the effect of seed electron injection on acceleration of radiation belt electrons driven by chorus waves. Numerical results show that in the absence of injection chorus waves can accelerate electrons at large pitch angles (αe>60°), producing enhancements in the phase space density (PSD) of (1–2 MeV) electrons by a factor of 100–1000 within 1–2 days. In the presence of injection, chorus waves yield increase in PSD of electrons by accelerating the injected seed electrons. Meanwhile, the PSD evolution increases as the pitch angle increases but decreases as electron energy increases. Moreover, the PSD evolution can extend to higher energies with a time scale of 1–2 days for 1–2 MeV energies. When the injection increases by a factor of 10 higher than the initial value and remains for about two days, maximum values of PSD for 1 or 2 MeV increase to 6 or 3 times respectively higher than those without injection in two days. The current results suggest that the injected seed electrons play an important role in the evolution of the radiation belt electrons.
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allfields	10.1007/s11431-012-5078-0 doi (DE-627)SPR019278802 (SPR)s11431-012-5078-0-e DE-627 ger DE-627 rakwb eng 600 ASE 600 ASE 50.00 bkl Yan, Qi verfasserin aut Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Using the hybrid finite difference method, we solve the Fokker-Planck equation to study the effect of seed electron injection on acceleration of radiation belt electrons driven by chorus waves. Numerical results show that in the absence of injection chorus waves can accelerate electrons at large pitch angles (αe>60°), producing enhancements in the phase space density (PSD) of (1–2 MeV) electrons by a factor of 100–1000 within 1–2 days. In the presence of injection, chorus waves yield increase in PSD of electrons by accelerating the injected seed electrons. Meanwhile, the PSD evolution increases as the pitch angle increases but decreases as electron energy increases. Moreover, the PSD evolution can extend to higher energies with a time scale of 1–2 days for 1–2 MeV energies. When the injection increases by a factor of 10 higher than the initial value and remains for about two days, maximum values of PSD for 1 or 2 MeV increase to 6 or 3 times respectively higher than those without injection in two days. The current results suggest that the injected seed electrons play an important role in the evolution of the radiation belt electrons. seed electrons (dpeaa)DE-He213 chorus waves (dpeaa)DE-He213 radiation belt electrons (dpeaa)DE-He213 Shi, LiQing verfasserin aut Liu, SiQing verfasserin aut Enthalten in Science in China Heidelberg : Springer, 1997 56(2012), 2 vom: 08. Nov., Seite 492-498 (DE-627)385614756 (DE-600)2142897-9 1862-281X nnns volume:56 year:2012 number:2 day:08 month:11 pages:492-498 https://dx.doi.org/10.1007/s11431-012-5078-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 50.00 ASE AR 56 2012 2 08 11 492-498
spelling	10.1007/s11431-012-5078-0 doi (DE-627)SPR019278802 (SPR)s11431-012-5078-0-e DE-627 ger DE-627 rakwb eng 600 ASE 600 ASE 50.00 bkl Yan, Qi verfasserin aut Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Using the hybrid finite difference method, we solve the Fokker-Planck equation to study the effect of seed electron injection on acceleration of radiation belt electrons driven by chorus waves. Numerical results show that in the absence of injection chorus waves can accelerate electrons at large pitch angles (αe>60°), producing enhancements in the phase space density (PSD) of (1–2 MeV) electrons by a factor of 100–1000 within 1–2 days. In the presence of injection, chorus waves yield increase in PSD of electrons by accelerating the injected seed electrons. Meanwhile, the PSD evolution increases as the pitch angle increases but decreases as electron energy increases. Moreover, the PSD evolution can extend to higher energies with a time scale of 1–2 days for 1–2 MeV energies. When the injection increases by a factor of 10 higher than the initial value and remains for about two days, maximum values of PSD for 1 or 2 MeV increase to 6 or 3 times respectively higher than those without injection in two days. The current results suggest that the injected seed electrons play an important role in the evolution of the radiation belt electrons. seed electrons (dpeaa)DE-He213 chorus waves (dpeaa)DE-He213 radiation belt electrons (dpeaa)DE-He213 Shi, LiQing verfasserin aut Liu, SiQing verfasserin aut Enthalten in Science in China Heidelberg : Springer, 1997 56(2012), 2 vom: 08. Nov., Seite 492-498 (DE-627)385614756 (DE-600)2142897-9 1862-281X nnns volume:56 year:2012 number:2 day:08 month:11 pages:492-498 https://dx.doi.org/10.1007/s11431-012-5078-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 50.00 ASE AR 56 2012 2 08 11 492-498
allfields_unstemmed	10.1007/s11431-012-5078-0 doi (DE-627)SPR019278802 (SPR)s11431-012-5078-0-e DE-627 ger DE-627 rakwb eng 600 ASE 600 ASE 50.00 bkl Yan, Qi verfasserin aut Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Using the hybrid finite difference method, we solve the Fokker-Planck equation to study the effect of seed electron injection on acceleration of radiation belt electrons driven by chorus waves. Numerical results show that in the absence of injection chorus waves can accelerate electrons at large pitch angles (αe>60°), producing enhancements in the phase space density (PSD) of (1–2 MeV) electrons by a factor of 100–1000 within 1–2 days. In the presence of injection, chorus waves yield increase in PSD of electrons by accelerating the injected seed electrons. Meanwhile, the PSD evolution increases as the pitch angle increases but decreases as electron energy increases. Moreover, the PSD evolution can extend to higher energies with a time scale of 1–2 days for 1–2 MeV energies. When the injection increases by a factor of 10 higher than the initial value and remains for about two days, maximum values of PSD for 1 or 2 MeV increase to 6 or 3 times respectively higher than those without injection in two days. The current results suggest that the injected seed electrons play an important role in the evolution of the radiation belt electrons. seed electrons (dpeaa)DE-He213 chorus waves (dpeaa)DE-He213 radiation belt electrons (dpeaa)DE-He213 Shi, LiQing verfasserin aut Liu, SiQing verfasserin aut Enthalten in Science in China Heidelberg : Springer, 1997 56(2012), 2 vom: 08. Nov., Seite 492-498 (DE-627)385614756 (DE-600)2142897-9 1862-281X nnns volume:56 year:2012 number:2 day:08 month:11 pages:492-498 https://dx.doi.org/10.1007/s11431-012-5078-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 50.00 ASE AR 56 2012 2 08 11 492-498
allfieldsGer	10.1007/s11431-012-5078-0 doi (DE-627)SPR019278802 (SPR)s11431-012-5078-0-e DE-627 ger DE-627 rakwb eng 600 ASE 600 ASE 50.00 bkl Yan, Qi verfasserin aut Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Using the hybrid finite difference method, we solve the Fokker-Planck equation to study the effect of seed electron injection on acceleration of radiation belt electrons driven by chorus waves. Numerical results show that in the absence of injection chorus waves can accelerate electrons at large pitch angles (αe>60°), producing enhancements in the phase space density (PSD) of (1–2 MeV) electrons by a factor of 100–1000 within 1–2 days. In the presence of injection, chorus waves yield increase in PSD of electrons by accelerating the injected seed electrons. Meanwhile, the PSD evolution increases as the pitch angle increases but decreases as electron energy increases. Moreover, the PSD evolution can extend to higher energies with a time scale of 1–2 days for 1–2 MeV energies. When the injection increases by a factor of 10 higher than the initial value and remains for about two days, maximum values of PSD for 1 or 2 MeV increase to 6 or 3 times respectively higher than those without injection in two days. The current results suggest that the injected seed electrons play an important role in the evolution of the radiation belt electrons. seed electrons (dpeaa)DE-He213 chorus waves (dpeaa)DE-He213 radiation belt electrons (dpeaa)DE-He213 Shi, LiQing verfasserin aut Liu, SiQing verfasserin aut Enthalten in Science in China Heidelberg : Springer, 1997 56(2012), 2 vom: 08. Nov., Seite 492-498 (DE-627)385614756 (DE-600)2142897-9 1862-281X nnns volume:56 year:2012 number:2 day:08 month:11 pages:492-498 https://dx.doi.org/10.1007/s11431-012-5078-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 50.00 ASE AR 56 2012 2 08 11 492-498
allfieldsSound	10.1007/s11431-012-5078-0 doi (DE-627)SPR019278802 (SPR)s11431-012-5078-0-e DE-627 ger DE-627 rakwb eng 600 ASE 600 ASE 50.00 bkl Yan, Qi verfasserin aut Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Using the hybrid finite difference method, we solve the Fokker-Planck equation to study the effect of seed electron injection on acceleration of radiation belt electrons driven by chorus waves. Numerical results show that in the absence of injection chorus waves can accelerate electrons at large pitch angles (αe>60°), producing enhancements in the phase space density (PSD) of (1–2 MeV) electrons by a factor of 100–1000 within 1–2 days. In the presence of injection, chorus waves yield increase in PSD of electrons by accelerating the injected seed electrons. Meanwhile, the PSD evolution increases as the pitch angle increases but decreases as electron energy increases. Moreover, the PSD evolution can extend to higher energies with a time scale of 1–2 days for 1–2 MeV energies. When the injection increases by a factor of 10 higher than the initial value and remains for about two days, maximum values of PSD for 1 or 2 MeV increase to 6 or 3 times respectively higher than those without injection in two days. The current results suggest that the injected seed electrons play an important role in the evolution of the radiation belt electrons. seed electrons (dpeaa)DE-He213 chorus waves (dpeaa)DE-He213 radiation belt electrons (dpeaa)DE-He213 Shi, LiQing verfasserin aut Liu, SiQing verfasserin aut Enthalten in Science in China Heidelberg : Springer, 1997 56(2012), 2 vom: 08. Nov., Seite 492-498 (DE-627)385614756 (DE-600)2142897-9 1862-281X nnns volume:56 year:2012 number:2 day:08 month:11 pages:492-498 https://dx.doi.org/10.1007/s11431-012-5078-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 50.00 ASE AR 56 2012 2 08 11 492-498
language	English
source	Enthalten in Science in China 56(2012), 2 vom: 08. Nov., Seite 492-498 volume:56 year:2012 number:2 day:08 month:11 pages:492-498
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author	Yan, Qi
spellingShingle	Yan, Qi ddc 600 bkl 50.00 misc seed electrons misc chorus waves misc radiation belt electrons Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons
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topic_title	600 ASE 50.00 bkl Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons seed electrons (dpeaa)DE-He213 chorus waves (dpeaa)DE-He213 radiation belt electrons (dpeaa)DE-He213
topic	ddc 600 bkl 50.00 misc seed electrons misc chorus waves misc radiation belt electrons
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title	Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons
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title_full	Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons
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title_sort	effect of seed electron injection on chorus-driven acceleration of radiation belt electrons
title_auth	Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons
abstract	Abstract Using the hybrid finite difference method, we solve the Fokker-Planck equation to study the effect of seed electron injection on acceleration of radiation belt electrons driven by chorus waves. Numerical results show that in the absence of injection chorus waves can accelerate electrons at large pitch angles (αe>60°), producing enhancements in the phase space density (PSD) of (1–2 MeV) electrons by a factor of 100–1000 within 1–2 days. In the presence of injection, chorus waves yield increase in PSD of electrons by accelerating the injected seed electrons. Meanwhile, the PSD evolution increases as the pitch angle increases but decreases as electron energy increases. Moreover, the PSD evolution can extend to higher energies with a time scale of 1–2 days for 1–2 MeV energies. When the injection increases by a factor of 10 higher than the initial value and remains for about two days, maximum values of PSD for 1 or 2 MeV increase to 6 or 3 times respectively higher than those without injection in two days. The current results suggest that the injected seed electrons play an important role in the evolution of the radiation belt electrons.
abstractGer	Abstract Using the hybrid finite difference method, we solve the Fokker-Planck equation to study the effect of seed electron injection on acceleration of radiation belt electrons driven by chorus waves. Numerical results show that in the absence of injection chorus waves can accelerate electrons at large pitch angles (αe>60°), producing enhancements in the phase space density (PSD) of (1–2 MeV) electrons by a factor of 100–1000 within 1–2 days. In the presence of injection, chorus waves yield increase in PSD of electrons by accelerating the injected seed electrons. Meanwhile, the PSD evolution increases as the pitch angle increases but decreases as electron energy increases. Moreover, the PSD evolution can extend to higher energies with a time scale of 1–2 days for 1–2 MeV energies. When the injection increases by a factor of 10 higher than the initial value and remains for about two days, maximum values of PSD for 1 or 2 MeV increase to 6 or 3 times respectively higher than those without injection in two days. The current results suggest that the injected seed electrons play an important role in the evolution of the radiation belt electrons.
abstract_unstemmed	Abstract Using the hybrid finite difference method, we solve the Fokker-Planck equation to study the effect of seed electron injection on acceleration of radiation belt electrons driven by chorus waves. Numerical results show that in the absence of injection chorus waves can accelerate electrons at large pitch angles (αe>60°), producing enhancements in the phase space density (PSD) of (1–2 MeV) electrons by a factor of 100–1000 within 1–2 days. In the presence of injection, chorus waves yield increase in PSD of electrons by accelerating the injected seed electrons. Meanwhile, the PSD evolution increases as the pitch angle increases but decreases as electron energy increases. Moreover, the PSD evolution can extend to higher energies with a time scale of 1–2 days for 1–2 MeV energies. When the injection increases by a factor of 10 higher than the initial value and remains for about two days, maximum values of PSD for 1 or 2 MeV increase to 6 or 3 times respectively higher than those without injection in two days. The current results suggest that the injected seed electrons play an important role in the evolution of the radiation belt electrons.
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title_short	Effect of seed electron injection on chorus-driven acceleration of radiation belt electrons
url	https://dx.doi.org/10.1007/s11431-012-5078-0
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