Results 41 to 50 of about 1,535,639 (228)

Energetic particle acceleration and transport with the novel Icarus + PARADISE model

Journal of Space Weather and Space Climate
With the rise of satellites and mankind’s growing dependence on technology, there is an increasing awareness of space weather phenomena related to high-energy particles.
Husidic Edin, Wijsen Nicolas, Baratashvili Tinatin, Poedts Stefaan, Vainio Rami   +4 more
doaj   +1 more source

Xenoliths in meteorites: Insights into the dynamics of material exchange between asteroids

Meteoritics &Planetary Science, EarlyView.
Abstract A minor fraction of meteorites contains xenoliths, that is, clasts that were formed on a different parent body than that of the host lithology. The occurrence of xenoliths is direct evidence for the exchange of material between asteroids, including exchanges between asteroids from the carbonaceous (CC) and non‐carbonaceous (NC) reservoirs ...
J. Gattacceca, B. Devouard, L. Bonal, Y. Marrocchi, A. Greshake, R. Tartèse, M. Gounelle, D. AuYang, C. Sonzogni, M. Hutson, A. Irving, C. Agee, T. Shisseh, A. Love, V. Vidal, D. Borschneck, S. A. Eckley, A. Morbidelli   +17 more
wiley   +1 more source

Multithermal Jet Formation Triggered by Flux Emergence

The Astrophysical Journal Letters, 2023
Flux emergence is responsible for various solar eruptions. Combining observation and simulations, we investigate the influence of flux emergence at one footpoint of an arcade on coronal rain as well as induced eruptions.
Xiaohong Li, Rony Keppens, Yuhao Zhou
doaj   +1 more source

Oscillatory reconnection and resonant response to wave excitation in 2D coronal null points

Astronomy & Astrophysics
Context. Null points are magnetic field singularities where the magnetic field strength rapidly drops to zero. In the solar atmosphere, null points are known sites of magnetic reconnection and wave generation, and are associated with highly energetic ...
Karampelas Konstantinos, Van Doorsselaere Tom   +1 more
doaj   +1 more source

A Microkrystite from the Australasian Tektite/Microtektite Strewn Field

Meteoritics &Planetary Science, EarlyView.
Abstract Microkrystites are glassy impact spherules. They contain primary crystallites carrying information on the physical and chemical conditions prevailing during vaporization, melting, and ejection in large impact cratering events. We report on the geochemistry and mineralogy down to nanometer scale of the first microkrystite (ODP1144A,14) from the
Matteo Del Rio, Luigi Folco, Matteo Masotta, Ana Černok, Enrico Mugnaioli   +4 more
wiley   +1 more source

Plasma radiation mechanisms in astrophysics

Uspekhi Fizicheskih Nauk, 1969
Abstract : The paper discusses problems and applications of plasma physics and its revelance to astrophysics. A method of interpreting radio emission of variable quasars is suggested. (Author)
S A Kaplan, Vadim N Tsytovich
openaire   +2 more sources

Automatic Classification of Plasma Regions in Near-Earth Space With Supervised Machine Learning: Application to Magnetospheric Multi Scale 2016–2019 Observations

Frontiers in Astronomy and Space Sciences, 2020
The proper classification of plasma regions in near-Earth space is crucial to perform unambiguous statistical studies of fundamental plasma processes such as shocks, magnetic reconnection, waves and turbulence, jets and their combinations.
Hugo Breuillard, Romain Dupuis, Alessandro Retino, Olivier Le Contel, Jorge Amaya, Giovanni Lapenta   +5 more
doaj   +1 more source

Assessing the analytical capabilities of handheld laser‐induced breakdown spectroscopy (hLIBS) on corroded iron objects of possible meteoritic origin

Meteoritics &Planetary Science, EarlyView.
Abstract Despite meteorites having been recognized as the source of iron in some ancient iron artifacts, few archeological irons have been analyzed so far, as invasive methods are precluded. In this work, four iron knives and one axe collected near Guelmime and Imilchil (Morocco) were investigated by advanced analytical techniques, including handheld ...
Giorgio S. Senesi, Albert Jambon, Olga De Pascale, Lahcen Ouknine, Hassan Nachit, Fouad Khiri, Abderrahmane Ibhi   +6 more
wiley   +1 more source

X–ray spectroscopy of astrophysical plasmas

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2002
We provide a qualitative review of key X-ray spectral diagnostics of astrophysical plasmas. We begin with a brief discussion of the two major types of equilibria, collisional ionization and photoionization, and then consider the behaviour of hydrogen-like, helium-like, iron L-shell and iron K-shell transitions for these separate cases.
Kahn, Steven M., Behar, Ehud, Kinkhabwala, Ali, Savin, Daniel Wolf   +3 more
openaire   +3 more sources

The role of lateral magnetic reconnection in solar eruptive events [PDF]

Annales Geophysicae, 2009
On 10–11 December 2005 a slow CME occurred in between two coronal streamers in the Western Hemisphere. SOHO/MDI magnetograms show a multipolar magnetic configuration at the photosphere consisting of a complex of active regions located at the CME ...
A. Soenen, A. Soenen, A. Bemporad, C. Jacobs, C. Jacobs, S. Poedts, S. Poedts   +6 more
doaj   +1 more source