Results 11 to 20 of about 2,303,549 (257)

Nuclear β-decays in plasmas: how to correlate plasma density and temperature to the activity [PDF]

EPJ Web of Conferences, 2020
Magnetized plasmas in compact traps may become experimental en-vironments for the investigation of nuclear beta-decays of astrophysical inter-est. In the framework of the project PANDORA (Plasmas for Astrophysics, Nuclear Decays Observation and Radiation
Naselli Eugenia, Mascali David, Caliri Claudia, Castro Giuseppe, Celona Luigi, Galatá Alessio, Gammino Santo, Mazzaglia Maria, Romano Francesco Paolo, Giuseppe Torrisi, Santonocito Domenico, Cosentino Gianluigi, Amaducci Simone   +12 more
doaj   +1 more source

Tearing Modes in Partially Ionized Astrophysical Plasma [PDF]

Astrophysical Journal Letters, 2020
In many astrophysical environments the plasma is only partially ionized, and therefore the interaction of charged and neutral particles may alter both the triggering of reconnection and its subsequent dynamical evolution.
F. Pucci, K. A. P. Singh, A. Tenerani, M. Velli   +3 more
semanticscholar   +1 more source

Identification of a non-axisymmetric mode in laboratory experiments searching for standard magnetorotational instability

Nature Communications, 2022
Magnetohydrodynamic instabilities are related to different characteristics and behavior of fluids. Here the authors report an experiment and simulation combined study of a global non-axisymmetric MHD instability that exists at sufficiently large rotation
Yin Wang, Erik P. Gilson, Fatima Ebrahimi, Jeremy Goodman, Kyle J. Caspary, Himawan W. Winarto, Hantao Ji   +6 more
doaj   +1 more source

Observation of poloidal magnetic flux emission from the post-pinch phase of a plasma focus and its significance for laboratory simulation of astrophysical jets

Fundamental Plasma Physics, 2023
Astrophysical jets are plasma flows, which are observed to substantially maintain their transverse size while travelling distances orders-of-magnitude larger.
S.K.H. Auluck, A.B. Blagoev
doaj   +1 more source

Plasmoid-mediated reconnection during nonlinear peeling–ballooning edge-localized modes

Nuclear Fusion, 2023
Plasmoid-mediated reconnection is investigated for nonlinear peeling–ballooning edge-localized modes (P-B ELMs). The formation of current sheets and the transition to 3D current sheet instability is demonstrated through fully nonlinear resistive MHD ...
Fatima Ebrahimi, Amitava Bhattacharjee
doaj   +1 more source

Behavior of substorm auroral arcs and Pi2 waves: implication for the kinetic ballooning instability [PDF]

Annales Geophysicae, 2012
We present synoptic observations of the 21 December 2006 substorm event by the THEMIS ground-based All-Sky-Imagers, the ISUAL CCD Imager aboard the FORMOSAT-2 satellite, the geosynchronous satellites and the ground-based magnetometers, and discuss the
T. F. Chang, T. F. Chang, C. Z. Cheng, C. Z. Cheng, C. Y. Chiang, A. B. Chen, A. B. Chen   +6 more
doaj   +1 more source

Perspectives on relativistic electron–positron pair plasma experiments of astrophysical relevance using high-power lasers

Physics of Plasmas, 2023
The study of relativistic electron–positron pair plasmas is both of fundamental physics interest and important to understand the processes that shape the magnetic field dynamics, particle acceleration, and radiation emission in high-energy astrophysical ...
Hui-Hwa Chen, F. Fiuza
semanticscholar   +1 more source

Acoustic oscillations in a field-free cavity under solar small-scale bipolar magnetic canopy [PDF]

Annales Geophysicae, 2008
Observations show the increase of high-frequency wave power near magnetic network cores and active regions in the solar lower atmosphere. This phenomenon can be explained by the interaction of acoustic waves with a magnetic field.
D. Kuridze, T. V. Zaqarashvili, B. M. Shergelashvili, B. M. Shergelashvili, S. Poedts   +4 more
doaj   +1 more source

Nonlinear coupling of electromagnetic and electron acoustic waves in multi-species degenerate astrophysical plasma [PDF]

Physics of Plasmas, 2019
Nonlinear wave-coupling is studied in a multispecies degenerate astrophysical plasma consisting of two electron species (at different temperatures): a highly degenerate main component plus a smaller classical relativistic flow immersed in a static ...
N. Shatashvili, S. Mahajan, V. Berezhiani   +2 more
semanticscholar   +1 more source

Plasma environment effects on K lines of astrophysical interest [PDF]

Astronomy & Astrophysics, 2020
Aims.Within the framework of compact-object accretion disks, we calculate plasma environment effects on the atomic structure and decay parameters used in the modeling of K lines in lowly charged iron ions, namely Fe II–Fe VIII.Methods.For this study, we ...
J. Deprince, M. Bautista, S. Fritzsche, Javier A. García, T. Kallman, C. Mendoza, P. Palmeri, P. Quinet   +7 more
semanticscholar   +1 more source