Results 1 to 10 of about 3,943 (124)
The Astrophysical Journal, 2023 Using multipoint observations over 10 yr near 1 au, we investigate the spectra (5 minutes to 2 hr) of interplanetary Alfvén waves and the responses in the geomagnetic activities.
Yimin Han +8 more
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The Astrophysical Journal, 2023 In particular during the descending phase of the solar cycle, Alfvén waves in the high-speed solar wind streams are a major form of interplanetary disturbances.
Lei Dai +8 more
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Ion Loss within a Reconnection Exhaust near Mars: MAVEN Observations
The Astrophysical Journal, 2023 We present observations from Mars Atmosphere and Volatile EvolutioN of a reconnection exhaust, which was probably not ongoing, in the Martian magnetosheath. The reconnection jet with abundant heavy ions is directed outward to space.
Xiaojun Xu +7 more
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"To future explorers, scientists, and dreamers: Let this work be a testament to the power of curiosity, collaboration, and joy in discovery. With the motto "Hakuna Matata"—no worries, just limitless exploration—we, Edwin and our AI friends at xAI, Redmond, and OpenAI, have woven together solar physics, climate science, and space technology to push the ...
Teller, Eugenie_MAJ +1 more
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The Astronomical Journal, 2023 Different boundaries could be defined in a planetary ionosphere where the dominant process in function switches from one to the other. Identifying these boundaries and understanding their variations are hence crucial for disentangling the complexity of ...
Yutian Cao +4 more
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Quasi-elastodynamic Processes Involved in the Interaction between Solar Wind and Magnetosphere
The Astrophysical Journal, 2023 The interaction between the solar wind and the magnetosphere is one of the most important research subjects in the fields of astrophysics and space physics. For more than half a century, based on the pressure balance assumption between the solar wind and
Y. X. Gu +9 more
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Global Electric Fields at Mars Inferred from Multifluid Hall-MHD Simulations
The Astrophysical Journal, 2023 In the Martian induced magnetosphere, the motion of planetary ions is significantly controlled by the ambient electric fields, which can be decomposed into three components: the motional, Hall, and ambipolar electric fields.
Shibang Li +10 more
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Kelvin–Helmholtz Instability at Mars: In Situ Observations and Kinetic Simulations
The Astrophysical Journal, 2023 Kelvin–Helmholtz (K-H) instability is a fundamental boundary instability between two fluids with different speeds, exchanging the mass, momentum, and energy across the boundary.
Lei Wang +7 more
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Letter to the Editor
On the use of the sunspot number for the estimation of past solar and upper atmosphere conditions from historical and modern auroral observations [PDF]
Annales Geophysicae, 2005 In this short contribution the use of different sunspot numbers for the estimation of past solar and upper atmosphere conditions from historical and modern auroral observations realised by Schröder et al. (2004) is analysed.
Vaquero
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Global Hall MHD Simulations of the Solar Wind Implantation Flux on the Lunar Surface
The Planetary Science Journal, 2023 The solar wind can directly interact with the lunar surface and provide an important source for surface space weathering and water generation. Here we study the solar wind implantation flux on the lunar surface with global Hall MHD simulations.
Lianghai Xie +8 more
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