Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Super-efficient Electron Acceleration by an Isolated Magnetic Reconnection
Beihang Univ, Sch Space & Environm, Beijing, Peoples R China.
Beihang Univ, Sch Space & Environm, Beijing, Peoples R China.
Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen.ORCID iD: 0000-0003-1654-841x
Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen.ORCID iD: 0000-0001-5550-3113
2019 (English)In: Astrophysical Journal Letters, ISSN 2041-8205, E-ISSN 2041-8213, Vol. 870, no 2, article id L22Article in journal (Refereed) Published
Abstract [en]

Magnetic reconnection-the process typically lasting for a few seconds in space-is able to accelerate electrons. However, the efficiency of the acceleration during such a short period is still a puzzle. Previous analyses, based on spacecraft measurements in the Earth's magnetotail, indicate that magnetic reconnection can enhance electron fluxes up to 100 times. This efficiency is very low, creating an impression that magnetic reconnection is not good at particle acceleration. By analyzing Cluster data, we report here a remarkable magnetic reconnection event during which electron fluxes are enhanced by 10,000 times. Such acceleration, 100 times more efficient than those in previous studies, is caused by the betatron mechanism. Both reconnection fronts and magnetic islands contribute to the acceleration, with the former being more prominent.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2019. Vol. 870, no 2, article id L22
Keywords [en]
acceleration of particles, magnetic reconnection
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-253253DOI: 10.3847/2041-8213/aafa75ISI: 000455938700002Scopus ID: 2-s2.0-85060198327OAI: oai:DiVA.org:kth-253253DiVA, id: diva2:1324655
Note

QC 20190625

Available from: 2019-06-14 Created: 2019-06-14 Last updated: 2019-06-25Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Vaivads, AndrisKhotyaintsev, Yuri V.

Search in DiVA

By author/editor
Vaivads, AndrisKhotyaintsev, Yuri V.
In the same journal
Astrophysical Journal Letters
Astronomy, Astrophysics and Cosmology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 2 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf