Results 21 to 30 of about 78,626 (296)

Dense astrophysical plasmas [PDF]

Journal of Physics: Condensed Matter, 2002
We briefly examine the properties of dense plasmas characteristic of the atmospheres of neutron stars and of the interior of massive white dwarfs. These astrophysical bodies are natural laboratories to study respectively the problem of pressure ionization of hydrogen in a strong magnetic field and the crystallization of the quantum one-component-plasma
Chabrier, G., Douchin, F., Potekhin, A. Y.   +2 more
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

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

Exploring the nature of collisionless shocks under laboratory conditions [PDF]

, 2014
Collisionless shocks are pervasive in astrophysics and they are critical to understand cosmic ray acceleration. Laboratory experiments with intense lasers are now opening the way to explore and characterise the underlying microphysics, which determine ...
Bret, A., Fiuza, F., Fonseca, R. A., Silva, L. O., Stockem, A.   +4 more
core   +2 more sources

Modelling the total solar eclipse in 2024 with COCONUT

Astronomy & Astrophysics
Context. Coronal modelling is crucial for a better understanding of solar physics and heliophysics. Accurate plasma conditions at the outer boundary of a solar corona lead to more precise space weather predictions.
Baratashvili T., Wang H. P., Sorokina D., Lani A., Poedts S.   +4 more
doaj   +1 more source

The Wisconsin Plasma Astrophysics Laboratory

, 2015
The Wisconsin Plasma Astrophysics Laboratory (WiPAL) is a flexible user facility designed to study a range of astrophysically relevant plasma processes as well as novel geometries that mimic astrophysical systems. A multi-cusp magnetic bucket constructed
Brookhart, M., Clark, M., Cooper, C. M., Desangles, V., Egedal, J., Endrizzi, D., Flanagan, K., Forest, C. B., Khalzov, I. V., Li, H., Miesch, M., Milhone, J., Nornberg, M., Olson, J., Peterson, E., Roesler, F., Schekochihin, A., Schmitz, O., Siller, R., Spitkovsky, A., Stemo, A., Wallace, J., Weisberg, D., Zweibel, E.   +23 more
core   +1 more source

Baryonic loading and e^+e^- rate equation in GRB sources [PDF]

, 2006
The expansion of the electron-positron plasma in the GRB phenomenon is compared and contrasted in the treatments of Meszaros, Laguna and Rees, of Shemi, Piran and Narayan, and of Ruffini et al.
Bianco, Carlo Luciano, Ruffini, Remo, Vereshchagin, Gregory, Xue, She-Sheng   +3 more
core   +2 more sources

Introduction to nuclear astrophysics

, 2009
In the first lecture of this volume, we will present the basic fundamental ideas regarding nuclear processes occurring in stars. We start from stellar observations, will then elaborate on some important quantum-mechanical phenomena governing nuclear ...
Iliadis, Christian
core   +1 more source

Comment on "Head-on collision of electron acoustic solitary waves in a plasma with nonextensive hot electrons" [PDF]

, 2012
In a recent paper "Head-on collision of electron acoustic solitary waves in a plasma with nonextensive hot electrons" [Astrophys. Space Sci. 338, 271-278 (2012)] Eslami, Mottaghizadeh and Pakzad deal with the problem of the head-on collisions between two
Frank Verheest, H. Demiray, P. Eslami, P. Eslami   +3 more
core   +3 more sources

Non-thermal electron acceleration in turbulent, post-flare coronal loops

Astronomy & Astrophysics
Context. The generation of energetic, non-thermal electrons during solar flares plays a critical role in energy transportation from the corona to the chromosphere, producing regions of observed intense X-ray emission.
Mora C., Bacchini F., Keppens R.
doaj   +1 more source