Results 1 to 10 of about 725,463 (303)

Meteoric Metal Chemistry in the Martian Atmosphere. [PDF]

J Geophys Res Planets, 2018
Recent measurements by the Imaging Ultraviolet Spectrograph (IUVS) instrument on NASA's Mars Atmosphere and Volatile EvolutioN mission show that a persistent layer of Mg+ ions occurs around 90 km in the Martian atmosphere but that neutral Mg atoms are ...
Plane JMC, Carrillo-Sanchez JD, Mangan TP, Crismani MMJ, Schneider NM, Määttänen A.   +5 more
europepmc   +8 more sources

Strong Depletion of 13C in CO Induced by Photolysis of CO2 in the Martian Atmosphere, Calculated by a Photochemical Model [PDF]

The Planetary Science Journal, 2023
The isotopic signature of atmospheric carbon offers a unique tracer for the history of the Martian atmosphere and the origin of organic matter on Mars. The photolysis of CO _2 is known to induce strong isotopic fractionation of the carbon between CO _2 ...
Tatsuya Yoshida, Shohei Aoki, Yuichiro Ueno, Naoki Terada, Yuki Nakamura, Kimie Shiobara, Nao Yoshida, Hiromu Nakagawa, Shotaro Sakai, Shungo Koyama   +9 more
doaj   +2 more sources

Dust tides and rapid meridional motions in the Martian atmosphere during major dust storms. [PDF]

Nat Commun, 2020
The atmosphere of Mars is strongly affected by the spatial and temporal variability of airborne dust. However, global dust variability within a sol (Martian day) is still poorly understood.
Wu Z, Li T, Zhang X, Li J, Cui J.
europepmc   +2 more sources

Stable carbon isotope evolution of formaldehyde on early Mars [PDF]

Scientific Reports
Organic matter in the Martian sediments may provide a key to understanding the prebiotic chemistry and habitability of early Mars. The Curiosity rover has measured highly variable and 13C-depleted carbon isotopic values in early Martian organic matter ...
Shungo Koyama, Tatsuya Yoshida, Yoshihiro Furukawa, Naoki Terada, Yuichiro Ueno, Yuki Nakamura, Arihiro Kamada, Takeshi Kuroda, Ann Carine Vandaele   +8 more
doaj   +2 more sources

Carbonate formation events in ALH 84001 trace the evolution of the Martian atmosphere. [PDF]

Proc Natl Acad Sci U S A, 2015
Shaheen R, Niles PB, Chong K, Corrigan CM, Thiemens MH.   +4 more
europepmc   +2 more sources

Properties and models of the Martian bow shock

地球与行星物理论评, 2021
Mars does not have a global magnetic field of the internal origin, thus, the solar wind plasma can interact directly with the upper atmosphere and the ionosphere and be shocked with the mass-loading and magnetic pileup processes.
Yifan Li, Jiding Wen, Yuan Pan, Haibo Lin, Jianpeng Guo   +4 more
doaj   +1 more source

Isotopes of chlorine from HCl in the Martian atmosphere

Astronomy & Astrophysics, 2021
Hydrogen chloride gas was recently discovered in the atmosphere of Mars during southern summer seasons. Its connection with potential chlorine reservoirs and the related atmospheric chemistry is now of particular interest and actively studied ...
A. Trokhimovskiy, A. Fedorova, K. Olsen, J. Alday, O. Korablev, F. Montmessin, F. Lefévre, A. Patrakeev, D. Belyaev, A. Shakun   +9 more
semanticscholar   +1 more source

Methodology of estimation the parameters permissible values of the aerodynamic and inertial asymmetry of the martian probe

Космические аппараты и технологии, 2023
A technique for estimating small permissible values of the parameters of the aerodynamic and inertial asymmetry of an unguided space probe in the rarefied layers of the Martian atmosphere is considered.
I. Bakry
doaj   +1 more source

What Is the Radiation Impact of Extreme Solar Energetic Particle Events on Mars?

Space Weather, 2023
Solar Energetic Particles (SEP) are one of the major sources of the Martian radiation environment. It is important to understand the SEP‐induced Martian radiation environment for future human habitats on Mars.
Jian Zhang, Jingnan Guo, Mikhail I. Dobynde   +2 more
doaj   +1 more source

Thermospheric density responses to Martian dust storm in autumn based on MAVEN data

Geodesy and Geodynamics, 2022
The unique seasonal surface dust storms on Mars have a significant impact on the Martian atmosphere. However, due to the lack of observations, semi-empirical models are difficult to simulate the density changes in the thermosphere with the existence of ...
Peng Han, Shuanggen Jin, Jiandong Liu, Yawen Li   +3 more
doaj   +1 more source