Matches in SemOpenAlex for { <https://semopenalex.org/work/W4384263498> ?p ?o ?g. }
Showing items 1 to 60 of
60
with 100 items per page.
- W4384263498 abstract "The density decreases exponentially with height in the solar gravitationally stratified atmosphere, therefore the collisional coupling between the ionized plasma and the neutrals also decreases. Here, we investigate the role of collisions between ions and neutrals on the reconnection process occurring at various heights in the atmosphere. We perform simulations of magnetic reconnection induced by a localized resistivity in a gravitationally stratified atmosphere, where we vary the height of the initial reconnection X-point. We compare a magnetohydrodynamic (MHD) model and two two-fluid configurations: one where the collisional coupling is calculated from local plasma parameters and another where the coupling is decreased, so that collisional effects are enhanced. Simulations in a stratified atmosphere show similar structures in MHD and two-fluid simulations with strong coupling. However, when collisional effects are increased to attain representative parameter regimes, we find a nonlinear runaway instability, which separates the plasma-neutral densities across the current sheet (CS). With increased collisional effects, the initial decoupling in velocity heats the neutrals and this sets up a nonlinear feedback where neutrals migrate outside the CS, replacing charged particles which accumulate towards the center of the CS. The reconnection rate has a maximum value around 0.1, similar for both reconnection heights, and is consistent with the use of a localized enhanced resistivity used in all three models. The initial stages of plasmoid formation, observed near the end of our simulations, is influenced by the outflow from the primary reconnection point, rather than by collisions. We synthesize optically thin emission for both MHD and two-fluid models, which can show a very different evolution when the charged particle density is used instead of the total density." @default.
- W4384263498 created "2023-07-14" @default.
- W4384263498 creator A5017295146 @default.
- W4384263498 creator A5050309833 @default.
- W4384263498 date "2023-07-11" @default.
- W4384263498 modified "2023-10-13" @default.
- W4384263498 title "Two-fluid reconnection jets in a gravitationally stratified atmosphere" @default.
- W4384263498 doi "https://doi.org/10.1051/0004-6361/202346659" @default.
- W4384263498 hasPublicationYear "2023" @default.
- W4384263498 type Work @default.
- W4384263498 citedByCount "0" @default.
- W4384263498 crossrefType "posted-content" @default.
- W4384263498 hasAuthorship W4384263498A5017295146 @default.
- W4384263498 hasAuthorship W4384263498A5050309833 @default.
- W4384263498 hasBestOaLocation W43842634981 @default.
- W4384263498 hasConcept C121332964 @default.
- W4384263498 hasConcept C146176613 @default.
- W4384263498 hasConcept C184779094 @default.
- W4384263498 hasConcept C185544564 @default.
- W4384263498 hasConcept C207821765 @default.
- W4384263498 hasConcept C30475298 @default.
- W4384263498 hasConcept C31532427 @default.
- W4384263498 hasConcept C36819163 @default.
- W4384263498 hasConcept C42471609 @default.
- W4384263498 hasConcept C44870925 @default.
- W4384263498 hasConcept C57879066 @default.
- W4384263498 hasConcept C65440619 @default.
- W4384263498 hasConcept C82706917 @default.
- W4384263498 hasConcept C97355855 @default.
- W4384263498 hasConceptScore W4384263498C121332964 @default.
- W4384263498 hasConceptScore W4384263498C146176613 @default.
- W4384263498 hasConceptScore W4384263498C184779094 @default.
- W4384263498 hasConceptScore W4384263498C185544564 @default.
- W4384263498 hasConceptScore W4384263498C207821765 @default.
- W4384263498 hasConceptScore W4384263498C30475298 @default.
- W4384263498 hasConceptScore W4384263498C31532427 @default.
- W4384263498 hasConceptScore W4384263498C36819163 @default.
- W4384263498 hasConceptScore W4384263498C42471609 @default.
- W4384263498 hasConceptScore W4384263498C44870925 @default.
- W4384263498 hasConceptScore W4384263498C57879066 @default.
- W4384263498 hasConceptScore W4384263498C65440619 @default.
- W4384263498 hasConceptScore W4384263498C82706917 @default.
- W4384263498 hasConceptScore W4384263498C97355855 @default.
- W4384263498 hasLocation W43842634981 @default.
- W4384263498 hasLocation W43842634982 @default.
- W4384263498 hasOpenAccess W4384263498 @default.
- W4384263498 hasPrimaryLocation W43842634981 @default.
- W4384263498 hasRelatedWork W1993104197 @default.
- W4384263498 hasRelatedWork W2019117895 @default.
- W4384263498 hasRelatedWork W2044321062 @default.
- W4384263498 hasRelatedWork W2049123749 @default.
- W4384263498 hasRelatedWork W2072075229 @default.
- W4384263498 hasRelatedWork W2254355434 @default.
- W4384263498 hasRelatedWork W2260436058 @default.
- W4384263498 hasRelatedWork W2386528229 @default.
- W4384263498 hasRelatedWork W3105723962 @default.
- W4384263498 hasRelatedWork W4285070114 @default.
- W4384263498 isParatext "false" @default.
- W4384263498 isRetracted "false" @default.
- W4384263498 workType "article" @default.