Results 71 to 80 of about 1,043 (204)

The Evolution of Hot Flow Anomalies in Martian Space Environment

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Hot Flow Anomalies (HFAs) are transient foreshock structures generated by solar wind discontinuity‐bow shock interactions, with their evolution only confirmed near Earth. Using MAVEN and Tianwen‐1 joint observations, we study the evolution of a Martian HFA event detected on 17 September 2022 (dayside by MAVEN, nightside by Tianwen‐1).
Heying Wang, Mingyu Wu, Yangjun Chen, Qi Lv, Guoqiang Wang, Sudong Xiao, Peng E, Aimin Du, Ding Yuan, Tielong Zhang   +9 more
wiley   +1 more source

Statistical Study of Short Large‐Amplitude Magnetic Structures at Mars Observed by MAVEN

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract We present a statistical study of Short Large‐Amplitude Magnetic Structures (SLAMS) in the Martian foreshock using data from the Mars Atmosphere and Volatile Evolution (MAVEN) mission between 01 January 2015 and 31 December 2019. We have identified 21,008 SLAMS during this time interval and statistical results are presented on the SLAMS ...
Tsz Kiu Wong Chan, Tomas Karlsson, Sofia Bergman   +2 more
wiley   +1 more source

Effects of Martian Dust Storms on Ionospheric Peak Altitudes

The Astrophysical Journal
The effects of Martian dust storms on the atmosphere and ionosphere is one of the hot topics in Mars research. This paper reports on the effects of a local dust storm on the ionospheric peak altitude based on electron density profile observations from ...
Yu Lou, Hong Zou, Yu Guang Ye, Jin Song Wang   +3 more
doaj   +1 more source

Modeling Ganymede's Surface Charging in Preparation for the JUICE Mission

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The European Space Agency's (ESA) JUICE mission (JUpiter ICy moons Explorer) is en route to the Jovian system to characterize Ganymede's subsurface ocean. Determining the ocean's conductivity and depth requires precise measurements of its induced magnetic field at the position of JUICE.
Betty Pei‐Chun Tsai, Elias Roussos, Ronan Modolo, Mika K. G. Holmberg, Xianzhe Jia, Tom Nordheim, Sachin Alexander Reddy, Norbert Krupp, Markus Fränz, Yasuhito Narita, Christina Plainaki   +10 more
wiley   +1 more source

Expansion and Shrinking of the Martian Topside Ionosphere

Journal of Geophysical Research: Space Physics, 2019
AbstractThe observations made by the Mars Atmosphere and Volatile EvolutioN spacecraft in the topside (≥200 km) ionosphere of Mars show that this region is very responsive to the variations of the external (solar extreme ultraviolet flux, solar wind, and interplanetary magnetic field [IMF]) and internal (the crustal magnetic field) drivers.
E. Dubinin, M. Fraenz, M. Pätzold, J. Woch, J. McFadden, J. S. Halekas, J. E. P. Connerney, B. M. Jakosky, F. Eparvier, O. Vaisberg, L. Zelenyi   +10 more
openaire   +3 more sources

Deciphering the “Missing Xenon Paradox” in Celestial Bodies: A Multifaceted Perspective Toward Demystifying This Enigma

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both, Avradip Ghosh, Chin Li Cheung   +2 more
wiley   +1 more source

Mars Thermospheric Polar Warming at Aphelion: Dynamical Processes Studied Using M‐GITM

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Aphelion Thermospheric Polar Warming (TPW), first identified in 2024 by Mars Atmosphere and Volatile EvolutioN (MAVEN) observations, is a dynamical heating phenomenon in the Martian atmosphere that exists in the winter hemisphere near the aphelion solstice.
Jia‐Zheng Li, Stephen W. Bougher, Cheng Li, Erdal Yiğit   +3 more
wiley   +1 more source

New Insights into the Structure and Energetics of the Martian Ionosphere

, 2016
Understanding the formation and evolution of planetary bodies is of great interest and importance to humankind. Mars, being the closest analogue to Earth in our solar system, has been of particular importance.
Fowler, Christopher
core   +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

Mars Thermospheric Variability: Disentangling the Influence of Irradiance, Dust, and Dynamics

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract We present a comprehensive analysis of Martian thermospheric variability using nearly a decade of solar occultation measurements from the MAVEN Extreme Ultraviolet Monitor (EUVM). These data provide vertical profiles of CO2 ${\text{CO}}_{2}$ density and temperature from ∼130 ${\sim} 130$ to 180 km at dawn and dusk, enabling the investigation ...
E. M. B. Thiemann, S. Bougher, N. Jones, E. Yiğit, F. Gasperini, C. Payne, R. Sewell, F. G. Eparvier, S. Curry   +8 more
wiley   +1 more source