Results 91 to 100 of about 2,303,549 (257)

Level populations for Be-sequence ions in astrophysical plasmas [PDF]

open access: bronze, 1984
F. P. Keenan   +4 more
openalex   +1 more source

Relativistic Astrophysical Plasmas

open access: yesKakuyūgō kenkyū, 1989
Selected theoretical topics in high energy astrophysics are discussed. Firstly an account is given of accretion disks around a massive black hole and radiation processes in hot thermal plasmas. Then recent studies on the effects of electron-positron pairs in relativistic thermal plasmas are summarized.
openaire   +2 more sources

Wave Propagation in Anisotropic Magnetically Quantized Ion Plasma with Trapped Electron and Positron

open access: yesEast European Journal of Physics
This study examines the effects of magnetically quantized degenerate trapped electrons and positrons on small-amplitude ion acoustic shock waves (IAShWs) in a pair ion plasma using the Zakharov-Kuznetsov Burger (ZKB) equation.
Balaram Pradhan   +2 more
doaj   +1 more source

Dielectronic recombination rates in astrophysical plasmas [PDF]

open access: hybrid, 2010
P. Quarati   +3 more
openalex   +1 more source

Investigating the Role of Inward Alfvén Waves and Structures in the Slow Solar Wind

open access: yesThe Astrophysical Journal
The solar wind dynamics are thought to be governed by counter-propagating Alfvén waves. Alfvén waves generate a turbulent cascade through nonlinear couplings between shearing wave packets. However, imbalances, structures, and intermittency complicate the
Michael Terres, Gang Li
doaj   +1 more source

Lower-hybrid oscillations in a cold magnetized electron-positron-ion plasma

open access: yesAIP Advances, 2018
In this paper, we obtain the dispersion relation for the lower-hybrid oscillations/waves in a cold magnetized electron-positron-ion (e-p-i) plasma. It is found that the frequency of the lower-hybrid oscillations in an e-p-i plasma is approximate 1/3 ...
Prabal Singh Verma
doaj   +1 more source

Benchmarking calculations of excitation energies and transition properties with spectroscopic accuracy of highly charged ions used for the fusion plasma and astrophysical plasma [PDF]

open access: bronze, 2023
Chunyu Zhang   +7 more
openalex   +1 more source

Experimental Study of Alfvén Wave Reflection from an Alfvén-speed Gradient Relevant to the Solar Coronal Holes

open access: yesThe Astrophysical Journal
We report the first experimental detection of a reflected Alfvén wave from an Alfvén-speed gradient under conditions similar to those in coronal holes. The experiments were conducted in the Large Plasma Device at the University of California, Los Angeles.
Sayak Bose   +8 more
doaj   +1 more source

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