Results 71 to 80 of about 319 (179)

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

C+ 133.5 nm Emission Mechanisms on Mars Revealed by the MAVEN Observations

The Astrophysical Journal
C ^+ emission is generated by electron impact, dissociative ionization, photoionization, and resonant scattering with carbon-related atoms, molecules, and ions in the Martian ionosphere and thermosphere. The contribution of each mechanism to the emission,
Shotaro Sakai, Hiromu Nakagawa, Justin Deighan, Sonal K. Jain, Kei Masunaga, Fuminori Tsuchiya, Naoki Terada, Majd Mayyasi, Nicholas M. Schneider, David L. Mitchell, Christian Mazelle, Mehdi Benna, Robert J. Lillis, Go Murakami, Shannon M. Curry, Kanako Seki   +15 more
doaj   +1 more source

Characterizing the current systems in the Martian ionosphere

When the solar wind encounters the ionosphere of an unmagnetized planet, it induces currents, forming an induced magnetosphere. These currents, along with their associated magnetic fields, play a crucial role in controlling the movement of charged particles, and are essential for understanding the escape of planetary ions.
Jiawei Gao, Anna Mittelholz, Zhaojin Rong, moa persson, Zhen Shi, Chi Zhang, Xiaodong Wang, Yong Wei   +7 more
  +5 more sources

Joint Observation of a Rotational Discontinuity by Tianwen‐1 and MAVEN at Mars

Geophysical Research Letters
The solar wind plays a crucial role in the evolution of planets in the solar system, particularly Mars. Mars has no global intrinsic magnetic field, leading the solar wind to interact directly with the Martian ionosphere and atmosphere.
Z. Z. Guo, H. S. Fu, J. B. Cao, Y. M. Wang, M. Ge, T. Y. Zhou, W. D. Fu, W. Z. Zhang, C. Q. Wang   +8 more
doaj   +1 more source

Study on the Coupling between the Ionosphere and Thermosphere at Different Heights on Mars

The Astrophysical Journal
Solar-driven thermal tides are an important factor driving spatiotemporal variations in the Martian upper atmosphere and ionosphere. Based on radio occultation data from the Mars Global Surveyor, this study systematically investigates the longitudinal ...
Yu Lou, Hong Zou, Yu Guang Ye, Jin Song Wang   +3 more
doaj   +1 more source

Recent progress in understanding magnetic reconnection in the Martian space environment

地球与行星物理论评
Magnetic reconnection, a ubiquitous plasma process in the universe, serves as a key mechanism for explosive energy release in various astrophysical phenomena.
Xiaojun Xu, Jing Wang, Yudong Ye, Ming Wang, Lei Luo, Qi Xu, Hengyan Man   +6 more
doaj   +1 more source

The anisotropy of suprathermal electrons in the Martian ionosphere

Earth and Planetary Physics
Suprathermal electrons are an important population of the Martian ionosphere, either produced by photoionization of atmospheric neutrals or supplied from the Solar Wind (SW). This study is dedicated to an in-depth investigation of the pitch angle distribution of suprathermal electrons at two representative energies, 19−55 eV and 124−356 eV, using the ...
YuTian Cao, Jun Cui, XiaoShu Wu, WenJun Liang, RuiQi Fu, HaoYu Lu   +5 more
openaire   +2 more sources

In Situ Evidence of a Twisted Loop-like Magnetic Flux Rope at Mars: A MAVEN and Tianwen-1 Close Conjunction

The Astrophysical Journal Letters
Magnetic flux ropes are twisted magnetic field lines that are commonly observed in space and astrophysical plasmas. At Mars, these structures are especially interesting because the planet does not have a global magnetic field like Earth, but instead has ...
Yuanzheng Wen, Jasper S. Halekas, Takuya Hara, Han-Wen Shen, Shaosui Xu, Chi Zhang, Thomas E. Cravens, Junfeng Qin, Jiawei Gao, Charles F. Bowers, Long Cheng, Kathleen. G. Hanley, David A. Brain, David L. Mitchell, Christian X. Mazelle, Jared R. Espley, James P. McFadden, Shannon M. Curry   +17 more
doaj   +1 more source

Solar Flare Spotlights the Martian Ionosphere

Eos
A “lucky” linkup between orbiters helped scientists study how the Red Planet’s ionosphere responds to solar events.
openaire   +1 more source

Detection of Martian ionosphere

Chinese Journal of Space Science, 2011
Hong Zou, Hongfei Chen, Weihong Shi, Jiqing Zou, Weiying Zhong, Xiangqian Yu   +5 more
openaire   +1 more source