Matches in SemOpenAlex for { <https://semopenalex.org/work/W2056547087> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W2056547087 endingPage "12954" @default.
- W2056547087 startingPage "12945" @default.
- W2056547087 abstract "A new approach is proposed to calculate the self-consistent parallel electric field associated with the response of a plasma to quasi-static electromagnetic perturbations (ω < k‖vA, where vA is the Alfvén velocity and k‖ the parallel component of the wave vector). Calculations are carried out in the case of a mirror geometry, for ω < ωb (ωb being the particle bounce frequency). For the sake of simplification the β of the plasma is assumed to be small. Apart from this restriction, the full Vlasov-Maxwell system of equations has been solved within the constraints described above (ω < k‖vA and ω < ωb) by [Le Contel et al., this issue] (LC0, hereafter), who describe self-consistently the radial transport of particles during the substorm growth phase. LC00 used an expansion in the small parameter Te/Ti (Te/Ti is typically 0.1 to 0.2 in the plasma sheet) to solve the quasi-neutrality condition (QNC). To the lowest order in Te/Ti < 1, they found that the QNC implies (1) the existence of a global electrostatic potential Χ0 which strongly modifies the perpendicular transport of the plasma and (2) the parallel electric field vanishes. In the present study, we solve the QNC to the next order in Te/Ti and show that a field-aligned potential drop proportional to Te/Ti does develop. We compute explicitly this potential drop in the case of the substorm growth phase modeled as in LC000. This potential drop has been calculated analytically for two regimes of parameters, and ( being the bounce averaged magnetic drift frequency equal to , where ky is the wave number in the y direction and the bounce averaged magnetic drift velocity). The first regime ( ) corresponds to small particle energy and/or small ky, while the second regime ( >) is adapted to large energies and/or large ky. In particular, in the limit and , where uy is the diamagnetic velocity proportional to the pressure gradient, we find a parallel electric field proportional to the pressure gradient and directed toward the ionosphere in the dusk sector and toward the equator in the dawn sector. This parallel electric field corresponds to a potential drop of a few hundred volts that can accelerate electrons and produce a differential drift between electrons and ions." @default.
- W2056547087 created "2016-06-24" @default.
- W2056547087 creator A5006871103 @default.
- W2056547087 creator A5039382003 @default.
- W2056547087 creator A5044720033 @default.
- W2056547087 date "2000-06-01" @default.
- W2056547087 modified "2023-09-27" @default.
- W2056547087 title "Self-consistent quasi-static parallel electric field associated with substorm growth phase" @default.
- W2056547087 cites W1995493618 @default.
- W2056547087 cites W2028445363 @default.
- W2056547087 cites W2047017722 @default.
- W2056547087 cites W2065034208 @default.
- W2056547087 cites W2080274459 @default.
- W2056547087 cites W2090824806 @default.
- W2056547087 cites W2091869156 @default.
- W2056547087 cites W2128995887 @default.
- W2056547087 cites W4256012983 @default.
- W2056547087 doi "https://doi.org/10.1029/1999ja900499" @default.
- W2056547087 hasPublicationYear "2000" @default.
- W2056547087 type Work @default.
- W2056547087 sameAs 2056547087 @default.
- W2056547087 citedByCount "14" @default.
- W2056547087 countsByYear W20565470872013 @default.
- W2056547087 countsByYear W20565470872014 @default.
- W2056547087 countsByYear W20565470872015 @default.
- W2056547087 countsByYear W20565470872017 @default.
- W2056547087 countsByYear W20565470872018 @default.
- W2056547087 crossrefType "journal-article" @default.
- W2056547087 hasAuthorship W2056547087A5006871103 @default.
- W2056547087 hasAuthorship W2056547087A5039382003 @default.
- W2056547087 hasAuthorship W2056547087A5044720033 @default.
- W2056547087 hasBestOaLocation W20565470871 @default.
- W2056547087 hasConcept C115260700 @default.
- W2056547087 hasConcept C121332964 @default.
- W2056547087 hasConcept C130443932 @default.
- W2056547087 hasConcept C157899998 @default.
- W2056547087 hasConcept C165801399 @default.
- W2056547087 hasConcept C184779094 @default.
- W2056547087 hasConcept C2781345722 @default.
- W2056547087 hasConcept C30475298 @default.
- W2056547087 hasConcept C3079626 @default.
- W2056547087 hasConcept C41008148 @default.
- W2056547087 hasConcept C44280652 @default.
- W2056547087 hasConcept C58570533 @default.
- W2056547087 hasConcept C60799052 @default.
- W2056547087 hasConcept C62520636 @default.
- W2056547087 hasConcept C74650414 @default.
- W2056547087 hasConcept C76155785 @default.
- W2056547087 hasConcept C82706917 @default.
- W2056547087 hasConceptScore W2056547087C115260700 @default.
- W2056547087 hasConceptScore W2056547087C121332964 @default.
- W2056547087 hasConceptScore W2056547087C130443932 @default.
- W2056547087 hasConceptScore W2056547087C157899998 @default.
- W2056547087 hasConceptScore W2056547087C165801399 @default.
- W2056547087 hasConceptScore W2056547087C184779094 @default.
- W2056547087 hasConceptScore W2056547087C2781345722 @default.
- W2056547087 hasConceptScore W2056547087C30475298 @default.
- W2056547087 hasConceptScore W2056547087C3079626 @default.
- W2056547087 hasConceptScore W2056547087C41008148 @default.
- W2056547087 hasConceptScore W2056547087C44280652 @default.
- W2056547087 hasConceptScore W2056547087C58570533 @default.
- W2056547087 hasConceptScore W2056547087C60799052 @default.
- W2056547087 hasConceptScore W2056547087C62520636 @default.
- W2056547087 hasConceptScore W2056547087C74650414 @default.
- W2056547087 hasConceptScore W2056547087C76155785 @default.
- W2056547087 hasConceptScore W2056547087C82706917 @default.
- W2056547087 hasIssue "A6" @default.
- W2056547087 hasLocation W20565470871 @default.
- W2056547087 hasLocation W20565470872 @default.
- W2056547087 hasLocation W20565470873 @default.
- W2056547087 hasLocation W20565470874 @default.
- W2056547087 hasLocation W20565470875 @default.
- W2056547087 hasOpenAccess W2056547087 @default.
- W2056547087 hasPrimaryLocation W20565470871 @default.
- W2056547087 hasRelatedWork W1971452125 @default.
- W2056547087 hasRelatedWork W1973753979 @default.
- W2056547087 hasRelatedWork W1987828490 @default.
- W2056547087 hasRelatedWork W1989581214 @default.
- W2056547087 hasRelatedWork W1990057908 @default.
- W2056547087 hasRelatedWork W2050301988 @default.
- W2056547087 hasRelatedWork W2057093782 @default.
- W2056547087 hasRelatedWork W2097742908 @default.
- W2056547087 hasRelatedWork W2101009082 @default.
- W2056547087 hasRelatedWork W4319081038 @default.
- W2056547087 hasVolume "105" @default.
- W2056547087 isParatext "false" @default.
- W2056547087 isRetracted "false" @default.
- W2056547087 magId "2056547087" @default.
- W2056547087 workType "article" @default.