FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2775689095> ?p ?o ?g. }

• W2775689095 abstract "We present a theoretical framework for describing electromagnetic kinetic turbulence in a multi-species, magnetized, pressure-anisotropic plasma. The turbulent fluctuations are assumed to be small compared to the mean field, to be spatially anisotropic with respect to it and to have frequencies small compared to the ion cyclotron frequency. At scales above the ion-Larmor radius, the theory reduces to the pressure-anisotropic generalization of kinetic reduced magnetohydrodynamics (KRMHD) formulated by Kunz et al. ( J. Plasma Phys. , vol. 81, 2015, 325810501). At scales at and below the ion-Larmor radius, three main objectives are achieved. First, we analyse the linear response of the pressure-anisotropic gyrokinetic system, and show it to be a generalization of previously explored limits. The effects of pressure anisotropy on the stability and collisionless damping of Alfvénic and compressive fluctuations are highlighted, with attention paid to the spectral location and width of the frequency jump that occurs as Alfvén waves transition into kinetic Alfvén waves. Secondly, we derive and discuss a very general gyrokinetic free-energy conservation law, which captures both the KRMHD free-energy conservation at long wavelengths and dual cascades of kinetic Alfvén waves and ion entropy at sub-ion-Larmor scales. We show that non-Maxwellian features in the distribution function change the amount of phase mixing and the efficiency of magnetic stresses, and thus influence the partitioning of free energy amongst the cascade channels. Thirdly, a simple model is used to show that pressure anisotropy, even within the bounds imposed on it by firehose and mirror instabilities, can cause order-of-magnitude variations in the ion-to-electron heating ratio due to the dissipation of Alfvénic turbulence. Our theory provides a foundation for determining how pressure anisotropy affects turbulent fluctuation spectra, the differential heating of particle species and the ratio of parallel and perpendicular phase mixing in space and astrophysical plasmas." @default.
• W2775689095 created "2017-12-22" @default.
• W2775689095 creator A5015707268 @default.
• W2775689095 creator A5045220529 @default.
• W2775689095 creator A5080665118 @default.
• W2775689095 creator A5091328515 @default.
• W2775689095 date "2018-04-01" @default.
• W2775689095 modified "2023-10-01" @default.
• W2775689095 title "Astrophysical gyrokinetics: turbulence in pressure-anisotropic plasmas at ion scales and beyond" @default.
• W2775689095 cites W1492267513 @default.
• W2775689095 cites W1559099211 @default.
• W2775689095 cites W1656012287 @default.
• W2775689095 cites W1881232094 @default.
• W2775689095 cites W1912683790 @default.
• W2775689095 cites W1964964713 @default.
• W2775689095 cites W1965959308 @default.
• W2775689095 cites W1968311205 @default.
• W2775689095 cites W1968613419 @default.
• W2775689095 cites W1968989548 @default.
• W2775689095 cites W1970175890 @default.
• W2775689095 cites W1976217269 @default.
• W2775689095 cites W1981669416 @default.
• W2775689095 cites W1981987637 @default.
• W2775689095 cites W1982985362 @default.
• W2775689095 cites W1988233622 @default.
• W2775689095 cites W1988817491 @default.
• W2775689095 cites W1989285707 @default.
• W2775689095 cites W1989726701 @default.
• W2775689095 cites W1992671864 @default.
• W2775689095 cites W1994795517 @default.
• W2775689095 cites W1997447755 @default.
• W2775689095 cites W1998264028 @default.
• W2775689095 cites W1999312031 @default.
• W2775689095 cites W2000502416 @default.
• W2775689095 cites W2000978145 @default.
• W2775689095 cites W2002227362 @default.
• W2775689095 cites W2005753234 @default.
• W2775689095 cites W2008079818 @default.
• W2775689095 cites W2011292539 @default.
• W2775689095 cites W2019083501 @default.
• W2775689095 cites W2019095995 @default.
• W2775689095 cites W2020391412 @default.
• W2775689095 cites W2022221679 @default.
• W2775689095 cites W2025601313 @default.
• W2775689095 cites W2026792068 @default.
• W2775689095 cites W2027824283 @default.
• W2775689095 cites W2030966125 @default.
• W2775689095 cites W2032796170 @default.
• W2775689095 cites W2036497841 @default.
• W2775689095 cites W2040425381 @default.
• W2775689095 cites W2041525915 @default.
• W2775689095 cites W2044441857 @default.
• W2775689095 cites W2046764104 @default.
• W2775689095 cites W2047017722 @default.
• W2775689095 cites W2048101600 @default.
• W2775689095 cites W2049752854 @default.
• W2775689095 cites W2049885646 @default.
• W2775689095 cites W2052032897 @default.
• W2775689095 cites W2052630722 @default.
• W2775689095 cites W2053332895 @default.
• W2775689095 cites W2054280515 @default.
• W2775689095 cites W2057453691 @default.
• W2775689095 cites W2058354142 @default.
• W2775689095 cites W2062877735 @default.
• W2775689095 cites W2064087780 @default.
• W2775689095 cites W2065034636 @default.
• W2775689095 cites W2075058524 @default.
• W2775689095 cites W2077461433 @default.
• W2775689095 cites W2080274459 @default.
• W2775689095 cites W2080726642 @default.
• W2775689095 cites W2081600205 @default.
• W2775689095 cites W2082449640 @default.
• W2775689095 cites W2082685827 @default.
• W2775689095 cites W2084975063 @default.
• W2775689095 cites W2091453423 @default.
• W2775689095 cites W2093081659 @default.
• W2775689095 cites W2098283940 @default.
• W2775689095 cites W2100092363 @default.
• W2775689095 cites W2100706338 @default.
• W2775689095 cites W2102979622 @default.
• W2775689095 cites W2108514403 @default.
• W2775689095 cites W2109112103 @default.
• W2775689095 cites W2119576252 @default.
• W2775689095 cites W2121985084 @default.
• W2775689095 cites W2132188352 @default.
• W2775689095 cites W2138030864 @default.
• W2775689095 cites W2139623174 @default.
• W2775689095 cites W2142141741 @default.
• W2775689095 cites W2144449033 @default.
• W2775689095 cites W2154591032 @default.
• W2775689095 cites W2155140415 @default.
• W2775689095 cites W2158697326 @default.
• W2775689095 cites W2172085903 @default.
• W2775689095 cites W2255861434 @default.
• W2775689095 cites W2321565098 @default.
• W2775689095 cites W2416170671 @default.
• W2775689095 cites W2497386166 @default.
• W2775689095 cites W2510182766 @default.
• W2775689095 cites W2601709328 @default.
• W2775689095 cites W2612213879 @default.

• next