Results 41 to 50 of about 1,980 (216)

Self-consistent modelling of Mercury’s exosphere by sputtering, micro-meteorite impact and photon-stimulated desorption

, 2010
A Monte-Carlo model of exospheres (Wurz and Lammer, 2003) was extended by treating the ion-induced sputtering process, photon-stimulated desorption, and micro-meteorite impact vaporisationquantitatively in a self-consistent way starting with the actual ...
Whitby, J.A., J.A. Martín-Fernández, Rohner, U., P. Wurz, Martín-Fernández, J.A., U. Rohner, C. Kolb, Kolb, C., H. Lammer, Wurz, P., Lammer, H., J.A. Whitby   +11 more
core   +1 more source

The role of the dynamic terrestrial exosphere in the storm-time ring current decay

Frontiers in Astronomy and Space Sciences
The charge exchange interaction between exospheric hydrogen (H) atoms and energetic ions in the terrestrial ring current is a crucial mechanism for dissipating global magnetospheric energy, especially during the recovery phase of geomagnetic storms ...
Gonzalo Cucho-Padin, Gonzalo Cucho-Padin, Cristian P. Ferradas, Cristian P. Ferradas, Mei-Ching Fok, Lara Waldrop, Jochen Zoennchen, Suk-Bin Kang, Suk-Bin Kang   +8 more
doaj   +1 more source

Geological Mapping and Structural Analysis of the Western Half of the Eminescu Quadrangle (H09), Mercury

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract We present the results of the first geological mapping of the western half of the Eminescu Quadrangle (H09) on Mercury. Multiple data sets from the NASA MESSENGER Mercury Dual Imaging System instrument were used to produce a geological map covering the area between 72°E and 108°E longitude and 22.5°N and 22.5°S latitude.
M. El Yazidi, E. Sefton‐Nash, C. Orgel, G. De Marchi, J. Filiberto, B. Bradák, P. D'Incecco, N. Slim Shimi, F. Srarfi, G. Leone   +9 more
wiley   +1 more source

Analytical model of Europa's O2 exosphere [PDF]

, 2016
The origin of the exosphere of Europa is its water ice surface. The existing exosphere models, assuming either a collisionless environment (simple Monte Carlo techniques) or a kinetic approach (Direct Monte Carlo Method) both predict that the major ...
MURA, Alessandro, MANGANO, VALERIA, PLAINAKI, CHRISTINA, MASSETTI, Stefano, DE ANGELIS, Elisabetta, RISPOLI, ROSANNA, ORSINI, Stefano, MILILLO, Anna   +7 more
core   +1 more source

Short‐term observations of double‐peaked Na emission from Mercury's exosphere

Geophysical Research Letters, 2017
We report the analysis of short‐term ground‐based observations of the exospheric Na emission (D1 and D2 lines) from Mercury, which was characterized by two high‐latitude peaks confined near the magnetospheric cusp footprints. During a series of scheduled
S. Massetti, V. Mangano, A. Milillo, A. Mura, S. Orsini, C. Plainaki   +5 more
doaj   +1 more source

An ICME impact on the Martian hydrogen corona

Earth and Planetary Physics, 2020
The Martian hydrogen exosphere extends out of the bow shock, forming a "hydrogen corona". The solar wind interacts directly with the hydrogen corona. During an ICME event on 7 March 2015, the SWIA instrument onboard Mars Atmosphere and Volatile Evolution
Qi Xu, XiaoJun Xu, Qing Chang, JiaYing Xu, Jing Wang, YuDong Ye   +5 more
doaj   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

Observed variations of the exospheric hydrogen density with the exospheric temperature

Journal of Geophysical Research, 1975
Measurements of exospheric hydrogen densities at a distance of 3 RE (earth radii) are presented as a function of exospheric temperature. They imply that the density nc at the exobase level decreases with exospheric temperature Tc but not enough to keep the Jeans escape flux FJ constant.
openaire   +2 more sources

Advancing Heliophysics and Space Weather Modeling Through Open Science

Space Weather, Volume 24, Issue 6, June 2026.
Abstract We present a community‐wide effort to develop a strategy and action plan to advance heliophysics and space weather modeling through open science. While open science has the potential to enhance the quality and pace of scientific discovery, its application to scientific modeling requires more careful consideration regarding open data and open ...
C. Corti, M. M. Kuznetsova, M. A. Reiss, J. Yue, J. Karpen, C. N. Arge, F. Bacchini, C. Bard, S. Bruinsma, R. M. Caplan, L. K. S. Daldorff, P. J. Deka, C. R. DeVore, S. Elvidge, N. Ganushkina, J. D. Huba, B. V. Jackson, V. Jordanova, J. A. Linker, H. Liu, J. G. Luhmann, S. Markidis, P. Mayank, V. Merkin, N. Moens, D. Odstrcil, Y. A. Omelchenko, M. Palmroth, S. Poedts, A. J. Ridley, Y. Shou, V. Tenishev, D. R. Themens, G. Toth, W. Wang, R.‐P. Wilhelm, M. A. Young, B. Cecconi, M.‐Y. Chou, D. De Zeeuw, G. L. Delzanno, C. Didigu, M. El Alaoui, S. Fung, J. Green, Z. Huang, L. K. Jian, L. J. Landwer, M. Lesko, P. MacNeice, A. Masson, M. L. Mays, P. M. Mehta, M. S. Miesch, E. Palmerio, M. Petrenko, E. Provornikova, L. Rastätter, L. Rusaitis, N. Sachdeva, E. Samara, D. Sur, A. Taktakishvili, J. Topper, T. Tsui, C. Verbeke, J. Wang, C. Wiegand, M. Wiltberger, Y. Zheng, M. M. Bisi, M. K. Georgoulis, T. Kodikara, T. Pulkkinen, A. Chartier, D. da Silva, A. Faturahman, K. Garcia‐Sage, D. Kondrashov, V. E. Ledvina, W. Liu, C. Pandey, E. Resnick, C. Shi, R. S. Weigel, K. Whitman, I. Zakharenkova, K. Zhang   +87 more
wiley   +1 more source

The LimPa mission: a small mission proposal to characterize the enigmatic lunar dust exosphere

Earth, Planets and Space
The lunar environment is known to be characterized by complex interactions between plasma, the exosphere, dust, and the surface. However, our understanding of the environment is limited due to the lack of experimental evidence.
Yoshifumi Futaana, Esa Kallio, Olli Knuuttila, Leo Nyman, Manabu Shimoyama, Stas Barabash   +5 more
doaj   +1 more source