Zobrazeno 1 - 10
of 71
pro vyhledávání: '"R E, Ergun"'
Autor:
N. Kitamura, T. Amano, Y. Omura, S. A. Boardsen, D. J. Gershman, Y. Miyoshi, M. Kitahara, Y. Katoh, H. Kojima, S. Nakamura, M. Shoji, Y. Saito, S. Yokota, B. L. Giles, W. R. Paterson, C. J. Pollock, A. C. Barrie, D. G. Skeberdis, S. Kreisler, O. Le Contel, C. T. Russell, R. J. Strangeway, P.-A. Lindqvist, R. E. Ergun, R. B. Torbert, J. L. Burch
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)
Excitation of whistler-mode waves by cyclotron instability is considered as the likely generation process of the waves. Here, the authors show direct observational evidence for locally ongoing secular energy transfer from the resonant electrons to th
Externí odkaz:
https://doaj.org/article/ad624c4396ec4f62824af55a223f9b45
Autor:
Shimou Wang, Rongsheng Wang, Quanming Lu, J. L. Burch, Ian J. Cohen, A. N. Jaynes, R. E. Ergun
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 11, Pp n/a-n/a (2023)
Abstract Two types of filamentary currents (FCs) were observed inside a magnetic flux rope at the magnetopause by the Magnetospheric Multiscale mission. The first FC is identified as an electron vortex, while the other is a reconnecting current sheet
Externí odkaz:
https://doaj.org/article/f9f6fe373e6c41589e0a8a66be25c276
Autor:
Xinmin Li, Rongsheng Wang, Quanming Lu, Christopher T. Russell, San Lu, Ian J. Cohen, R. E. Ergun, Shui Wang
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
Magnetotail reconnection plays an important role in explosive energy conversion. Here, the authors show direct evidence of super-thermal electrons up to 300 keV within X-line region in Earth’s magnetotail, indicating effective electron acceleration
Externí odkaz:
https://doaj.org/article/76cb16e0b99445d4b89040f7c2b89260
Autor:
Z. Z. Chen, T. Y. Wang, Y. Y. Liu, J. Yu, J. Wang, Y. D. Ye, Y. C. Jiang, H. S. Fu, J. Cui, J. B. Cao, R. E. Ergun
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 1, p 12 (2024)
Sub-ion-scale magnetic holes (MHs) are ubiquitous structures in plasmas across a wide range of environments. Despite previous observational and modeling efforts, the three-dimensional (3D) electric field in MHs has yet to be adequately resolved. In t
Externí odkaz:
https://doaj.org/article/c54a47494e9143e69acc8ea0bdccee5b
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 82 (2024)
Ion acoustic waves are pervasive at the Earth’s bow shock and in regions of active plasmas. Recently, frequency-dispersed ion acoustic-like waves have been observed by Parker Solar Probe in the near-Sun solar wind. These waves are electrostatic, pr
Externí odkaz:
https://doaj.org/article/2b548e6905d64f21a25ef3c7f1953901
Autor:
San Lu, Rongsheng Wang, Quanming Lu, V. Angelopoulos, R. Nakamura, A. V. Artemyev, P. L. Pritchett, T. Z. Liu, X.-J. Zhang, W. Baumjohann, W. Gonzalez, A. C. Rager, R. B. Torbert, B. L. Giles, D. J. Gershman, C. T. Russell, R. J. Strangeway, Y. Qi, R. E. Ergun, P.-A. Lindqvist, J. L. Burch, Shui Wang
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
Magnetotail reconnection plays a crucial role in explosive energy conversion in geospace. Here, the authors show that magnetotail reconnection starts from electron reconnection in the presence of a strong external driver, which then develops into ion
Externí odkaz:
https://doaj.org/article/7d4a9d5a99f34358a2787c2a549adb03
Autor:
B. B. Tang, W. Y. Li, C. Wang, Yu. V. Khotyaintsev, D. B. Graham, Q. H. Zhang, T. R. Sun, H. Li, X. Y. Wang, K. J. Trattner, B. L. Giles, P. A. Lindqvist, R. E. Ergun, J. L. Burch
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 8 (2021)
We report local secondary magnetic reconnection at Earth’s flank magnetopause by using the Magnetospheric Multiscale observations. This reconnection is found at the magnetopause boundary with a large magnetic shear between closed magnetospheric fie
Externí odkaz:
https://doaj.org/article/8e5cdfc527ea47028953af4cd42a7388
Autor:
K-J. Hwang, K. Dokgo, E. Choi, J. L. Burch, D. G. Sibeck, B. L. Giles, C. Norgren, T. K. M. Nakamura, D. B. Graham, Y. Khotyaintsev, Q. Q. Shi, D. J. Gershman, C. J. Pollock, R. E. Ergun, R. B. Torbert, C. T. Russell, R. J. Strangeway
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 8 (2021)
On May 5, 2017 MMS observed a bifurcated current sheet at the boundary of Kelvin-Helmholtz vortices (KHVs) developed on the dawnside tailward magnetopause. We use the event to enhance our understanding of the formation and structure of asymmetric cur
Externí odkaz:
https://doaj.org/article/5c38dee24eaf41a4935ec566bbfd45d5
Autor:
P. S. Pyakurel, T. D. Phan, J. F. Drake, M. A. Shay, M. Øieroset, C. C. Haggerty, J. Stawarz, J. L. Burch, R. E. Ergun, D. J. Gershman, B. L. Giles, R. B. Torbert, R. J. Strangeway, C. T. Russell
Publikováno v:
The Astrophysical Journal, Vol 948, Iss 1, p 20 (2023)
We investigate the detailed properties of electron inflow in an electron-only reconnection event observed by the four Magnetospheric Multiscale (MMS) spacecraft in the Earth's turbulent magnetosheath downstream of the quasi-parallel bow shock. The la
Externí odkaz:
https://doaj.org/article/7f274d41c3ba411f8195ac231a214bd4
Publikováno v:
The Astrophysical Journal, Vol 946, Iss 2, p 67 (2023)
Energetic electrons have been frequently observed during magnetic reconnection in the magnetotail. The acceleration process of the energetic electrons is not fully understood. In this paper, we select for a detailed study a case of energetic electron
Externí odkaz:
https://doaj.org/article/a27b26e19c114aa3bd4ff40d2f35270e