Matches in SemOpenAlex for { <https://semopenalex.org/work/W4321493293> ?p ?o ?g. }
Showing items 1 to 70 of
70
with 100 items per page.
- W4321493293 abstract "Context: Magnetic switchbacks are localised polarity reversals in the radial component of the heliospheric magnetic field. Observations from Parker Solar Probe (PSP) have shown that they are a prevalent feature of the near-Sun solar wind. However, observations of switchbacks at 1 au and beyond are less frequent, suggesting that these structures are dissipated by yet-to-be identified mechanisms as they propagate away from the Sun.Aims: We estimate the timescales over which magnetic switchbacks may be dissipated by magnetic reconnection and evaluate the viability of reconnection as a dissipation mechanism for switchbacks.Methods: We analyse magnetic field and plasma data from the magnetometer and Solar Wind Analyser instruments aboard Solar Orbiter between 10 August and 30 August 2021. During this period, the spacecraft was 0.6 – 0.7 au from the Sun.Results: We identify three instances of reconnection occurring at the trailing edge of magnetic switchbacks. Using hodographs and Walen analysis methods, we find that the reconnection exhaust region for all three events are bound by rotational discontinuities in the magnetic field, consistent with existing models describing the properties of reconnection in the solar wind. Based on these observations, we propose a scenario through which reconnection can dissipate a switchback and we estimate the timescales over which this occurs. We find that for our events the dissipation timescales are much shorter than the expansion timescale and thus, the complete dissipation of all three observed switchbacks would occur well before they reach Earth. Furthermore, assuming the observed reconnection rate has remained constant, and extrapolating back to an origin close to the Sun, we find that the spatial scale of these switchbacks would be considerably larger than is typically seen in the inner heliosphere. Hence, it is implied that the onset of reconnection must occur during transport in the solar wind. If typical, these results suggest that reconnection can play a significant role in dissipating switchbacks and could help explain the relative rarity of switchback observations at 1 au." @default.
- W4321493293 created "2023-02-23" @default.
- W4321493293 creator A5014611626 @default.
- W4321493293 creator A5026746850 @default.
- W4321493293 creator A5029164938 @default.
- W4321493293 creator A5041456476 @default.
- W4321493293 creator A5070199237 @default.
- W4321493293 date "2023-05-15" @default.
- W4321493293 modified "2023-09-27" @default.
- W4321493293 title "Magnetic Reconnection as a Dissipation Mechanism for Magnetic Switchbacks" @default.
- W4321493293 doi "https://doi.org/10.5194/egusphere-egu23-447" @default.
- W4321493293 hasPublicationYear "2023" @default.
- W4321493293 type Work @default.
- W4321493293 citedByCount "0" @default.
- W4321493293 crossrefType "posted-content" @default.
- W4321493293 hasAuthorship W4321493293A5014611626 @default.
- W4321493293 hasAuthorship W4321493293A5026746850 @default.
- W4321493293 hasAuthorship W4321493293A5029164938 @default.
- W4321493293 hasAuthorship W4321493293A5041456476 @default.
- W4321493293 hasAuthorship W4321493293A5070199237 @default.
- W4321493293 hasConcept C102988692 @default.
- W4321493293 hasConcept C108411613 @default.
- W4321493293 hasConcept C115260700 @default.
- W4321493293 hasConcept C121332964 @default.
- W4321493293 hasConcept C127313418 @default.
- W4321493293 hasConcept C135402231 @default.
- W4321493293 hasConcept C140161248 @default.
- W4321493293 hasConcept C151730666 @default.
- W4321493293 hasConcept C172600038 @default.
- W4321493293 hasConcept C2779343474 @default.
- W4321493293 hasConcept C30475298 @default.
- W4321493293 hasConcept C36819163 @default.
- W4321493293 hasConcept C44870925 @default.
- W4321493293 hasConcept C62520636 @default.
- W4321493293 hasConcept C72886185 @default.
- W4321493293 hasConcept C8058405 @default.
- W4321493293 hasConcept C97355855 @default.
- W4321493293 hasConceptScore W4321493293C102988692 @default.
- W4321493293 hasConceptScore W4321493293C108411613 @default.
- W4321493293 hasConceptScore W4321493293C115260700 @default.
- W4321493293 hasConceptScore W4321493293C121332964 @default.
- W4321493293 hasConceptScore W4321493293C127313418 @default.
- W4321493293 hasConceptScore W4321493293C135402231 @default.
- W4321493293 hasConceptScore W4321493293C140161248 @default.
- W4321493293 hasConceptScore W4321493293C151730666 @default.
- W4321493293 hasConceptScore W4321493293C172600038 @default.
- W4321493293 hasConceptScore W4321493293C2779343474 @default.
- W4321493293 hasConceptScore W4321493293C30475298 @default.
- W4321493293 hasConceptScore W4321493293C36819163 @default.
- W4321493293 hasConceptScore W4321493293C44870925 @default.
- W4321493293 hasConceptScore W4321493293C62520636 @default.
- W4321493293 hasConceptScore W4321493293C72886185 @default.
- W4321493293 hasConceptScore W4321493293C8058405 @default.
- W4321493293 hasConceptScore W4321493293C97355855 @default.
- W4321493293 hasLocation W43214932931 @default.
- W4321493293 hasOpenAccess W4321493293 @default.
- W4321493293 hasPrimaryLocation W43214932931 @default.
- W4321493293 hasRelatedWork W1968282221 @default.
- W4321493293 hasRelatedWork W1976288775 @default.
- W4321493293 hasRelatedWork W2038910269 @default.
- W4321493293 hasRelatedWork W2050119689 @default.
- W4321493293 hasRelatedWork W2345459539 @default.
- W4321493293 hasRelatedWork W3010494419 @default.
- W4321493293 hasRelatedWork W3199562176 @default.
- W4321493293 hasRelatedWork W4297341727 @default.
- W4321493293 hasRelatedWork W774735541 @default.
- W4321493293 hasRelatedWork W2187077570 @default.
- W4321493293 isParatext "false" @default.
- W4321493293 isRetracted "false" @default.
- W4321493293 workType "article" @default.