dc.citation.conferencePlace |
KO |
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dc.citation.conferencePlace |
online |
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dc.citation.title |
4th Asia Pacific Conference on Plasma Physics |
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dc.contributor.author |
Kang, Hyesung |
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dc.contributor.author |
Ryu, Dongsu |
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dc.contributor.author |
Ha, J-Hoon |
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dc.date.accessioned |
2024-01-31T22:37:10Z |
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dc.date.available |
2024-01-31T22:37:10Z |
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dc.date.created |
2021-01-11 |
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dc.date.issued |
2020-10-28 |
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dc.description.abstract |
Weak shocks with low sonic Mach number are induced by mergers and/or supersonic flow motions in the hot tenuous intracluster medium (ICM). High energy cosmic ray (CR) protons are expected to be accelerated at quasi-parallel shocks via diffusive shock acceleration (DSA), while CR electrons are expected to be accelerated preferentially at quasi-perpendicular shocks. The key element in determining the DSA efficiency is the so-called injection process, which energizes thermal particle to suprathermal energies sufficient to diffuse across the shock transition layer. Reflection of incoming particles and ensuing self-excitation of MHD/plasma waves play important roles in the particle injection to DSA. Using particle-in-cell (PIC) simulations, we study CR injection and early acceleration at weak shocks in high beta plasma. We find that the proton (electron) injection at quasi-parallel (quasi-perpendicular) shocks is effective only for supercritical shocks with the sonic Mach number greater than about 2.3. Further investigation is |
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dc.identifier.bibliographicCitation |
4th Asia Pacific Conference on Plasma Physics |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/78052 |
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dc.language |
영어 |
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dc.publisher |
Association of Asia-Pacific Physical Societies, Division of Plasma Physics(AAPPS-DPP) |
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dc.title |
Particle Acceleration at weak shocks in high beta ICM plasma |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2020-10-26 |
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