Results 111 to 120 of about 31,874 (242)

Transport of Water in a Transient, Impact‐Generated Atmosphere on Mercury

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Mercury's polar cold traps host water ice deposits that are likely populated with impact‐delivered water via Mercury's exosphere. However, Mercury's near‐sun location experiences an extremely high photodestruction rate that rapidly destroys water with a timescale of only ∼3.5 hr.
J. K. Steckloff, D. B. Goldstein, P. L. Varghese, L. M. Trafton, P. Prem   +4 more
wiley   +1 more source

Updating the Electrostatic Model for Dust Impact Detection with Antenna Instruments

The Astrophysical Journal
Antenna instruments deployed in space are known to be sensitive to dust impacts, and the detected signals can be used to characterize the dust populations within the solar system.
Austin Matheus Smith, Zoltan Sternovsky, Antal Juhász, David Malaspina, Petr Pokorný   +4 more
doaj   +1 more source

Observations on a series of merging magnetic flux ropes within an interplanetary coronal mass ejection

, 2018
Coronal mass ejections (CMEs) are intense solar explosive eruptions. CMEs are highly important players in solar-terrestrial relationships, and they have important consequences for major geomagnetic storms and energetic particle events.
Feng, Hengqiang, Liu, Qiang, Wu, Dejin, Zhao, Guoqing, Zhao, Yan   +4 more
core   +1 more source

Impact Plasma Amplification of the Ancient Mercury Magnetic Field

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Spacecraft measurements of Mercury indicate that it has a core dynamo with a surface field of 200–800 nT. These data also indicate that the northern hemisphere crust contains remanent magnetization likely produced by an ancient magnetic field. The inferred magnetization intensity is consistent with a wide range of paleofield strengths (0.2–50 ...
Isaac S. Narrett, Rona Oran, Yuxi Chen, Katarina Miljković, Gábor Tóth, Catherine L. Johnson, Benjamin P. Weiss   +6 more
wiley   +1 more source

Long-lived Magnetic Switchbacks Tracked across 0.32 au through BepiColombo–Solar Orbiter Radial Alignment

The Astrophysical Journal Letters
Magnetic switchbacks, often observed in the near-Sun solar wind, have received increased interest in recent years due to their potential role in mediating the heating and acceleration of the solar wind, but their origin remains debated.
Mirko Stumpo, Simone Benella, Pier Paolo Di Bartolomeo, Andrea Larosa, Oreste Pezzi, Georgios Nicolaou, Domenico Trotta, Tommaso Alberti, Raffaella D’Amicis, Monica Laurenza, Andrea Verdini, Anna Milillo, Daniel Heyner, Alessandro Aronica, Lorenzo Biasiotti, Alessandro Brin, Luca Colasanti, Elisabetta De Angelis, Stavro Ivanovski, Adrian Kazakov, Valeria Mangano, Stefano Massetti, Martina Moroni, Alessandro Mura, Christina Plainaki, Grace Richards, Rosanna Rispoli, Roberto Sordini, H. U. Auster, D. Constantinescu, D. Fischer, I. Richter   +31 more
doaj   +1 more source

The effect of the motion of the Sun on the light-time in interplanetary relativistic experiments

, 2008
In 2002 a measurement of the effect of solar gravity upon the phase of coherent microwave beams passing near the Sun has been carried out with the Cassini mission, allowing a very accurate measurement of the PPN parameter $\gamma$.
B Bertotti, Bertotti B, Bertotti B, Eddington A, L Iess, Landau L D, Mignard F, Moyer T D, N Ashby, Ni W-T, Ni W-T, Ni W-T, Ni W-T, Soffel M, Turyshev S G, Turyshev S G, Will C M   +16 more
core   +1 more source

Mercury’s Low‐Latitude Boundary Layer: Identification of Distinct Proton Populations Using MESSENGER Spacecraft Data

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract We have performed a comprehensive analysis of Mercury’s Low‐Latitude Boundary Layer (LLBL) using data from the MErcury Surface, Space ENvironment, GEochemistry and Ranging (MESSENGER) spacecraft during its orbital phase. Using combined magnetic field and ion measurements, we identified 202 LLBL events and categorized them into three distinct ...
X. Wang, L. Z. Hadid, S. Aizawa, F. Sahraoui, J. M. Raines, B. Lavraud   +5 more
wiley   +1 more source

A Overview of Interplanetary Scintillation Method for Studying Solar Wind Physics

Journal of Astronomy and Space Sciences, 1988
Interplanetary scintillation is the fluctuation produced in the apparent brightness of a radio source, due to refractive effects in the turbulent solar wind flowing from the sun. If this medium is illuminated coherently, analysis of the spatial and temporal properties of the radiation reaching the earth allows the stochastic properties of the medium to
S. Y. Kim, N. H. Myung, Y. S. Choi, H. K. Kim, T. H. Kim   +4 more
openaire   +1 more source

The Extreme GIC Occurrence During 11 years of Observations in the North‐West of Russia

Space Weather, Volume 24, Issue 5, May 2026.
Abstract For the first time, events with extreme magnitudes of geomagnetically induced currents (GICs) in the power lines during the quasi‐solar cycle (2012–2022) at auroral and subauroral latitudes are analyzed. GIC recordings from auroral Vykhodnoy (Murmansk region) and subauroral Kondopoga (Karelia) sub‐stations together with data from near‐by ...
V. B. Belakhovsky, V. A. Pilipenko, V. N. Selivanov, Ya. A. Sakharov, J. J. Zhang, V. V. Kolobov   +5 more
wiley   +1 more source

GIC‐Related Observations During the May 2024 Geomagnetic Storm in the United States

Space Weather, Volume 24, Issue 5, May 2026.
Abstract The May 2024 geomagnetic storm was one of the most severe in the past 20 years. Understanding how large geomagnetic disturbances (GMDs) impact geomagnetically induced currents (GICs) within electrical power grid networks is key to ensuring their resilience.
L. A. Wilkerson, R. S. Weigel, D. Thomas, D. Bor, E. J. Oughton, C. T. Gaunt, C. C. Balch, M. J. Wiltberger, A. Pulkkinen   +8 more
wiley   +1 more source