Results 51 to 60 of about 585,007 (286)

Oued Chebeika 002: A new CI1 meteorite linked to outer solar system bodies

Meteoritics &Planetary Science, EarlyView.
Abstract CI1 chondrites are rare meteorites with high scientific value. In fact, they are the most chemically primitive meteorites and show evidence of intense parent‐body aqueous alteration. They also share strong similarities with samples from Ryugu and Bennu asteroids returned by the JAXA Hayabusa2 and NASA's OSIRIS‐REx missions.
J. Gattacceca, M. Gounelle, B. Devouard, J.‐A. Barrat, L. Bonal, A. J. King, C. Maurel, P. Beck, M. Roskosz, J.‐C. Viennet, D. Mukherjee, N. Dauphas, P. R. Heck, T. Yokoyama, K. López García, O. Poch, O. Grauby, C. S. Harrison, V. Vinogradoff, P. Vernazza, S. Tikoo, V. Vidal, P. Rochette, D. AuYang, D. Borschneck, J. Juraszek, B. Clark   +26 more
wiley   +1 more source

Sources of solar energy and interplanetary magnetic field

Вісник Астрономічної школи, 2017
The sources of energy of solar activity are analyzed. The primary source of solar energy is the core of the Sun, where as a result of the reactions of thermonuclear fusion, energy is released in the form of γ-quanta and neutrino particles that propagate ...
V. N. Krivodubskij
doaj   +1 more source

Solar and Interplanetary Magnetic Fields and Plasmas [PDF]

Highlights of Astronomy, 1968
AbstractA few recent observations of interplanetary fields and plasmas are discussed, including the evolution over several years of the longitudinal sector pattern, the corotating filamentary structure that exists within the sectors, guiding of solar cosmic rays along such magnetic filaments, a field-aligned thermal anisotropy of the plasma, and a ...
openaire   +4 more sources

A Small Pathbreaking Spacecraft: Giants of Space Research (Bernard Blake, Dieter Hovestadt, and Edward Stone)

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley   +1 more source

Interplanetary Magnetic Field Bx Effect on Field-Aligned Currents in Different Local Times

Remote Sensing
This study explores the impact of the radial interplanetary magnetic field (IMF) on the strength and latitude of peak field-aligned currents (FACs). FACs are derived through vector magnetic field observations of the Swarm satellite mission.
Yu Sun, Hui Wang
doaj   +1 more source

Magnetic Cloud and Its Interplanetary Shock Sheath as a Modulator of the Cosmic Ray Intensity [PDF]

Journal of Astronomy and Space Sciences, 2008
Forbush Decreases (FDs) are representative events of abrupt decrease in galactic cosmic ray intensity. They are known to be strongly associated with solar wind events such as interplanetary shock (IP shock) and magnetic cloud (MC).
Su Yeon Oh
doaj   +1 more source

Helicity transport from solar convection zone to interplanetary space [PDF]

, 2012
Magnetic helicity is a physical quantity that describes field topology. It is also a conserved quantity as Berger in 1984 demonstrated that the total magnetic helicity is still conserved in the corona even when there is a fast magnetic reconnection. It is generally believed that solar magnetic fields, together with their helicity, are created in the ...
arxiv   +1 more source

A Kp‐Driven Machine Learning Model Predicting the Ultraviolet Emission Auroral Oval

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 2, June 2025.
Abstract Auroras can intuitively reflect the energy coupling between the Sun and the Earth and are an excellent indicator for monitoring and predicting space weather effects. Establishing an auroral oval model driven by the geomagnetic index, predicted up to 3 days ahead, can effectively assess energy transfer in space.
Huiting Feng, Dedong Wang, Yuri Y. Shprits, Artem Smirnov, Deyu Guo, Yoshizumi Miyoshi, Stefano Bianco, Shangchun Teng, Run Shi, Su Zhou, Yongliang Zhang   +10 more
wiley   +1 more source

Perturbazioni geomagnetiche, aurorali, ionosferiche e dei raggi cosmici : interdipendenze e relazioni con l'attività solare

Annals of Geophysics, 1966
Existence of interplanetary magnetic fields other than<br />the geomagnetic field is now well established. They travel as frozen-in<br />fields inside the solar plasma clouds: magnetic fields on the Sun are then<br />discussed ...
F. Molina, F. Mariani
doaj   +1 more source

On the F‐Region Ionospheric Plasma Density Distribution and Irregularities Response During the May‐2024 Geomagnetic Storm Observed by LEO Satellites

Geophysical Research Letters, Volume 52, Issue 10, 28 May 2025.
Abstract This study investigates the F‐region plasma density and irregularities response during the May‐2024 storm using Swarm and Gravity Recovery and Climate Experiment Follow‐On (GRACE‐FO) data. Swarm‐B provided measurements at 11/23 LTs. Data from GRACE‐FO and Swarm‐A were collected at 05/17 and 07/19 LTs.
S. K. Das, C. Stolle, Y. Yamazaki, J. Rodríguez‐Zuluaga, X. Wan, G. Kervalishvili, J. Rauberg, J. Zhong, S. Perwitasari   +8 more
wiley   +1 more source