Electron Mixing and Isotropization in the Exhaust of Asymmetric Magnetic Reconnection With a Guide Field
Abstract
In this work, we investigate an exhaust crossing of asymmetric guide field reconnection observed by Magnetospheric Multiscale (MMS) mission at Earth's dayside magnetopause. One MMS spacecraft (MMS 4) observes multicomponent electron distributions, including two counterstreaming electron beams, while the other three MMS spacecraft, with a separation of ~30 km, record nearly isotropic electron distributions. As counterstreaming electrons are unstable for the electron two-stream instability, our observations suggest that the electrostatic waves generated by the fast-growing electron two-stream instability can contribute to the rapid isotropization of electron distributions in the reconnection exhaust, indicating that wave-particle interactions play an important role in electron dynamics.
- Authors:
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[1];
[1];
[2];
[3];
[4];
[1];
[3];
[5];
[4];
[6];
[7];
[8];
[9];
[10];
[11]
- Chinese Academy of Sciences (CAS), Beijing (China)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Swedish Inst. of Space Physics, Uppsala (Sweden)
- Univ. of Science and Technology of China, Hefei (China)
- Univ. of Wisconsin, Madison, WI (United States)
- NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); Univ. of Maryland, College Park, MD (United States)
- NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
- KTH Royal Inst. of Technology, Stockholm (Sweden)
- Univ. of Colorado, Boulder, CO (United States)
- Univ. of California, Los Angeles, CA (United States)
- Southwest Research Institute, San Antonio, TX (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); National Natural Science Foundation of China (NSFC); Chinese Academy of Sciences
- OSTI Identifier:
- 1814781
- Report Number(s):
- LA-UR-20-22751
Journal ID: ISSN 0094-8276
- Grant/Contract Number:
- 89233218CNA000001; 41974196; 41974170; 41731070; 41674174; QYZDJ-SSW-JSC028; XDA15052500
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Geophysical Research Letters
- Additional Journal Information:
- Journal Volume: 47; Journal Issue: 14; Journal ID: ISSN 0094-8276
- Publisher:
- American Geophysical Union
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES
Citation Formats
Tang, B. ‐B., Li, W. Y., Le, Ari Yitzchak, Graham, D. B., Wu, Y. ‐F., Wang, C., Khotyaintsev, Yu. V., Egedal, J., Tao, X., Gershman, D. J., Giles, B. L., Lindqvist, P. ‐A., Ergun, R. E., Russell, C. T., and Burch, J. L. Electron Mixing and Isotropization in the Exhaust of Asymmetric Magnetic Reconnection With a Guide Field. United States: N. p., 2020.
Web. doi:10.1029/2020gl087159.
Tang, B. ‐B., Li, W. Y., Le, Ari Yitzchak, Graham, D. B., Wu, Y. ‐F., Wang, C., Khotyaintsev, Yu. V., Egedal, J., Tao, X., Gershman, D. J., Giles, B. L., Lindqvist, P. ‐A., Ergun, R. E., Russell, C. T., & Burch, J. L. Electron Mixing and Isotropization in the Exhaust of Asymmetric Magnetic Reconnection With a Guide Field. United States. https://doi.org/10.1029/2020gl087159
Tang, B. ‐B., Li, W. Y., Le, Ari Yitzchak, Graham, D. B., Wu, Y. ‐F., Wang, C., Khotyaintsev, Yu. V., Egedal, J., Tao, X., Gershman, D. J., Giles, B. L., Lindqvist, P. ‐A., Ergun, R. E., Russell, C. T., and Burch, J. L. Thu .
"Electron Mixing and Isotropization in the Exhaust of Asymmetric Magnetic Reconnection With a Guide Field". United States. https://doi.org/10.1029/2020gl087159. https://www.osti.gov/servlets/purl/1814781.
@article{osti_1814781,
title = {Electron Mixing and Isotropization in the Exhaust of Asymmetric Magnetic Reconnection With a Guide Field},
author = {Tang, B. ‐B. and Li, W. Y. and Le, Ari Yitzchak and Graham, D. B. and Wu, Y. ‐F. and Wang, C. and Khotyaintsev, Yu. V. and Egedal, J. and Tao, X. and Gershman, D. J. and Giles, B. L. and Lindqvist, P. ‐A. and Ergun, R. E. and Russell, C. T. and Burch, J. L.},
abstractNote = {In this work, we investigate an exhaust crossing of asymmetric guide field reconnection observed by Magnetospheric Multiscale (MMS) mission at Earth's dayside magnetopause. One MMS spacecraft (MMS 4) observes multicomponent electron distributions, including two counterstreaming electron beams, while the other three MMS spacecraft, with a separation of ~30 km, record nearly isotropic electron distributions. As counterstreaming electrons are unstable for the electron two-stream instability, our observations suggest that the electrostatic waves generated by the fast-growing electron two-stream instability can contribute to the rapid isotropization of electron distributions in the reconnection exhaust, indicating that wave-particle interactions play an important role in electron dynamics.},
doi = {10.1029/2020gl087159},
journal = {Geophysical Research Letters},
number = 14,
volume = 47,
place = {United States},
year = {Thu Apr 23 00:00:00 EDT 2020},
month = {Thu Apr 23 00:00:00 EDT 2020}
}
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