Magnetospheric physics

Magnetospheric physics is the study of the magnetic fields surrounding the Earth and other bodies in the solar system. An important consideration is how these fields interact with particles arriving from the sun or from even further into space. An example effect is the bow shock created as the magnetosphere passes through the solar wind.

Latest Research and Reviews

  • Research | | open

    Surface waves on the boundary between a magnetosphere and the surrounding plasma might get trapped by the ionosphere forming an eigenmode. Here, Archer et al. show direct observations of this proposed mechanism at Earth’s magnetosphere by analyzing the response to an isolated fast plasma jet detected by the THEMIS satellites.

    • M. O. Archer
    • , H. Hietala
    • , M. D. Hartinger
    • , F. Plaschke
    •  & V. Angelopoulos
  • Research |

    Observations reveal that electrons in Earth’s outer radiation belt possess a spectrum that partially rises with increasing energy, contrary to common beliefs. Plasma hiss waves scattered off electrons are found to be the origin of this phenomenon.

    • H. Zhao
    • , B. Ni
    • , X. Li
    • , D. N. Baker
    • , W. R. Johnston
    • , W. Zhang
    • , Z. Xiang
    • , X. Gu
    • , A. N. Jaynes
    • , S. G. Kanekal
    • , J. B. Blake
    • , S. G. Claudepierre
    • , M. A. Temerin
    • , H. O. Funsten
    • , G. D. Reeves
    •  & A. J. Boyd
  • Research | | open

    Electron precipitation plays major role in magnetospheric physics and space weather. Here the authors show nonlinear behavior of the wave–particle interaction in the magnetosphere as the evolution of chorus electromagnetic waves detected by the Arase satellite and PWING observatory.

    • Mitsunori Ozaki
    • , Yoshizumi Miyoshi
    • , Kazuo Shiokawa
    • , Keisuke Hosokawa
    • , Shin-ichiro Oyama
    • , Ryuho Kataoka
    • , Yusuke Ebihara
    • , Yasunobu Ogawa
    • , Yoshiya Kasahara
    • , Satoshi Yagitani
    • , Yasumasa Kasaba
    • , Atsushi Kumamoto
    • , Fuminori Tsuchiya
    • , Shoya Matsuda
    • , Yuto Katoh
    • , Mitsuru Hikishima
    • , Satoshi Kurita
    • , Yuichi Otsuka
    • , Robert C. Moore
    • , Yoshimasa Tanaka
    • , Masahito Nosé
    • , Tsutomu Nagatsuma
    • , Nozomu Nishitani
    • , Akira Kadokura
    • , Martin Connors
    • , Takumi Inoue
    • , Ayako Matsuoka
    •  & Iku Shinohara
  • Research | | open

    Magnetic energy in the plasma is transferred into particle energy by magnetic reconnection. Here the authors show the two-fluid dynamics of asymmetric magnetic reconnection in two different spatial scales of plasma, namely laboratory and astrophysical plasma.

    • M. Yamada
    • , L.-J. Chen
    • , J. Yoo
    • , S. Wang
    • , W. Fox
    • , J. Jara-Almonte
    • , H. Ji
    • , W. Daughton
    • , A. Le
    • , J. Burch
    • , B. Giles
    • , M. Hesse
    • , T. Moore
    •  & R. Torbert
  • Research | | open

    Magnetic reconnection is the process of releasing energy by magnetized and space plasma. Here the authors report experimental observation of magnetic reconnection in laser-produced plasma and the role of electron scaling on reconnection.

    • Y. Kuramitsu
    • , T. Moritaka
    • , Y. Sakawa
    • , T. Morita
    • , T. Sano
    • , M. Koenig
    • , C. D. Gregory
    • , N. Woolsey
    • , K. Tomita
    • , H. Takabe
    • , Y. L. Liu
    • , S. H. Chen
    • , S. Matsukiyo
    •  & M. Hoshino
  • Research | | open

    Radial diffusion is the only mechanism considered to accelerate trapped electrons to relativistic energies in Saturn’s magnetic field, forming radiation belts. Here the authors show another mechanism, electron acceleration via Doppler shifted cyclotron resonant interaction with Z-mode waves, which can form radiation belts inside the orbit of Enceladus.

    • E. E. Woodfield
    • , R. B. Horne
    • , S. A. Glauert
    • , J. D. Menietti
    • , Y. Y. Shprits
    •  & W. S. Kurth

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