Results 51 to 60 of about 215 (119)

Exploring Magnetic Reconnection in the Collisional Ionosphere of Mars With MAVEN

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Magnetic reconnection in collisional plasmas has been widely studied in solar and laboratory plasma disciplines, but in situ measurements in space plasmas have rarely been utilized to explore this reconnection regime. Here we study collisional effects on magnetic reconnection in the Martian ionosphere by analyzing in situ data obtained by the ...
Y. Harada, T. E. Cravens, D. A. Brain, J. S. Halekas, J. G. Luhmann, C. M. Fowler, K. G. Hanley, J. P. McFadden   +7 more
wiley   +1 more source

Recent investigations of the near-Mars space environment by the planetary aeronomy and space physics community in China

Earth and Planetary Physics, 2020
The present issue of Earth and Planetary Physics is dedicated to the near-space neutral and plasma environments of Mars. The issue includes nine papers that present new results on the properties of the Martian exosphere, ionosphere, and magnetosphere ...
Jun Cui, ZhaoJin Rong, Yong Wei, YuMing Wang   +3 more
doaj   +1 more source

Mercury's Altered Magnetosphere During a Sub‐Alfvénic ICME Event: MESSENGER Observations and Inferred Asymmetric Alfvén Wing Formation From Global MHD Simulations

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract We present observations of a rare configuration of Mercury's magnetosphere in response to sub‐Alfvénic upstream conditions, driven by an interplanetary coronal mass ejection (ICME) that impacted the planet on 1 May 2013. Using data from the Mercury Surface, Space Environment, Geochemistry, and Ranging (MESSENGER) spacecraft, supported by a ...
Charles F. Bowers, Caitríona M. Jackman, Xianzhe Jia, Lina Z. Hadid, Weijie Sun, Laura A. Hayes, Ryan M. Dewey, Brandon Burkholder, Daragh M. Hollman, Sebastian Cervantes, Hans L. F. Huybrighs, Matthew J. Rutala   +11 more
wiley   +1 more source

Power Spectral Characteristics of Martian Ionospheric Irregularities

The Astrophysical Journal
The intrinsic magnetic field of a planet plays a key role in its ionospheric dynamics. Mars lacks a global magnetic field, thus ionospheric plasma is weakly coupled to crustal and induced magnetic field.
Chougule Prathmesh, Bharati Kakad, Amar Kakad   +2 more
doaj   +1 more source

MARSIS Observations of the Martian Nightside Ionosphere During the September 2017 Solar Event

Geophysical Research Letters, 2018
We present topside ionospheric sounding on the nightside of Mars during the September 2017 solar event by Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) on board Mars Express along with complementary dayside observations from Mars ...
Y. Harada, D. A. Gurnett, A. J. Kopf, J. S. Halekas, S. Ruhunusiri, G. A. DiBraccio, J. Espley, D. A. Brain   +7 more
doaj   +1 more source

Modeling the Crustal Magnetic Field of Mars With Physics‐Informed Neural Networks

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Satellites orbiting Mars have measured crustal magnetic fields up to two orders of magnitude stronger than those on Earth. Although Mars currently lacks an active global magnetic field, this magnetization preserves a valuable record of the planet's early dynamo activity and crustal evolution.
T. Delcourt, A. Mittelholz
wiley   +1 more source

Electrostatic Solitary Waves in Electronegative Martian Plasma

The Astrophysical Journal
The solar wind interacts with planetary magnetospheres, generating plasma waves in both the upstream region and the magnetospheric environment. Mars, lacking an inherent magnetic field, has an induced magnetosphere formed through solar wind interaction ...
Steffy Sara Varghese, Kuldeep Singh, Frank Verheest, Ioannis Kourakis   +3 more
doaj   +1 more source

Bidirectional electron conic observations for photoelectrons in the Martian ionosphere

Earth and Planetary Physics, 2020
Electron pitch angle distributions similar to bidirectional electron conics (BECs) have been reported at Mars in previous studies based on analyses of Mars Global Surveyor measurements.
YuTian Cao, Jun Cui, BinBin Ni, XiaoShu Wu, Qiong Luo, ZhaoGuo He   +5 more
doaj   +1 more source

Magnetic Flux Ropes at Mars and Their Impacts on Heavy Ion Escape

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Flux ropes (FRs), ubiquitous helical magnetic structures in solar system plasmas, are important to energy and particle transport. At Mars, where global intrinsic magnetic fields are absent, FRs form through magnetic reconnection (MR) and magnetospheric or ionospheric boundary wave instabilities (BWIs), but their role in ion escape remains ...
Jinqiao Fan, Yasong S. Ge, Can Huang, Aimin Du, Xiaohua Fang, Tielong Zhang, Yingjuan Ma, Lei Wang, Ziyong Liu   +8 more
wiley   +1 more source

Magnetic Field and Plasma Asymmetries Between the Martian Quasi‐Perpendicular and Quasi‐Parallel Magnetosheaths

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract The Martian magnetosheath acts as a conduit for mass and energy transfer between the upstream solar wind and its induced magnetosphere. However, our understanding of its global properties remains limited. Using 9 years of data from NASA's Mars Atmosphere and Volatile EvolutioN mission, we performed a quantitative statistical analysis to ...
Abigail Tadlock, Chuanfei Dong, Chi Zhang, Markus Fränz, Hongyang Zhou, Jiawei Gao   +5 more
wiley   +1 more source