Matches in SemOpenAlex for { <https://semopenalex.org/work/W2063262492> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W2063262492 endingPage "451" @default.
- W2063262492 startingPage "442" @default.
- W2063262492 abstract "The heating of the plasma confined in active regions of the solar corona is caused by the dissipation of magnetic stresses induced by the photospheric motions of the loop footpoints. The aim of the present paper is to analyze whether solar coronal heating is dominated by slow (DC) or rapid (AC) photospheric driving motions. We describe the dynamics of a coronal loop through the reduced magnetohydrodynamic equations and assume a fully turbulent state in the coronal plasma. The boundary condition for these equations is the subphotospheric velocity field that stresses the magnetic field lines, thus replenishing the magnetic energy that is continuously being dissipated inside the corona. In a turbulent scenario, energy is efficiently transferred by a direct cascade to the microscale, where viscous and Joule dissipation take place. Therefore, for the macroscopic dynamics of the fields, the net effect of turbulence is to produce a dramatic enhancement of the dissipation rate. This effect of the microscale on the macroscale is modeled through effective dissipation coefficients much larger than the molecular ones. We consistently integrate the large-scale evolution of a coronal loop and compute the effective dissipation coefficients by applying a closure model (the eddy-damped, quasi-normal Markovian approximation). For broadband power-law photospheric power spectra, the heating of coronal loops is DC dominated. Nonetheless, a better knowledge of the photospheric power spectrum as a function of both frequency and wavenumber will allow for more accurate predictions of the heating rate from this simple model." @default.
- W2063262492 created "2016-06-24" @default.
- W2063262492 creator A5050485849 @default.
- W2063262492 creator A5050755819 @default.
- W2063262492 creator A5071144907 @default.
- W2063262492 date "1997-11-20" @default.
- W2063262492 modified "2023-10-13" @default.
- W2063262492 title "Solar Coronal Heating: AC versus DC" @default.
- W2063262492 cites W1543878070 @default.
- W2063262492 cites W1979424733 @default.
- W2063262492 cites W1981669416 @default.
- W2063262492 cites W1998780740 @default.
- W2063262492 cites W2008150791 @default.
- W2063262492 cites W2024003459 @default.
- W2063262492 cites W2025144832 @default.
- W2063262492 cites W2036583785 @default.
- W2063262492 cites W2048858332 @default.
- W2063262492 cites W2063262492 @default.
- W2063262492 cites W2071828589 @default.
- W2063262492 cites W2077392152 @default.
- W2063262492 cites W2090134482 @default.
- W2063262492 cites W2090382373 @default.
- W2063262492 cites W210602584 @default.
- W2063262492 cites W2116289822 @default.
- W2063262492 cites W2142469383 @default.
- W2063262492 cites W2160852351 @default.
- W2063262492 cites W2167024038 @default.
- W2063262492 cites W2918335093 @default.
- W2063262492 cites W4381946814 @default.
- W2063262492 doi "https://doi.org/10.1086/304845" @default.
- W2063262492 hasPublicationYear "1997" @default.
- W2063262492 type Work @default.
- W2063262492 sameAs 2063262492 @default.
- W2063262492 citedByCount "41" @default.
- W2063262492 countsByYear W20632624922012 @default.
- W2063262492 countsByYear W20632624922014 @default.
- W2063262492 countsByYear W20632624922015 @default.
- W2063262492 countsByYear W20632624922018 @default.
- W2063262492 countsByYear W20632624922019 @default.
- W2063262492 countsByYear W20632624922020 @default.
- W2063262492 crossrefType "journal-article" @default.
- W2063262492 hasAuthorship W2063262492A5050485849 @default.
- W2063262492 hasAuthorship W2063262492A5050755819 @default.
- W2063262492 hasAuthorship W2063262492A5071144907 @default.
- W2063262492 hasBestOaLocation W20632624921 @default.
- W2063262492 hasConcept C108411613 @default.
- W2063262492 hasConcept C121332964 @default.
- W2063262492 hasConcept C1276947 @default.
- W2063262492 hasConcept C146138569 @default.
- W2063262492 hasConcept C172600038 @default.
- W2063262492 hasConcept C183682340 @default.
- W2063262492 hasConcept C185544564 @default.
- W2063262492 hasConcept C2776779350 @default.
- W2063262492 hasConcept C2779900269 @default.
- W2063262492 hasConcept C44870925 @default.
- W2063262492 hasConcept C72886185 @default.
- W2063262492 hasConcept C82706917 @default.
- W2063262492 hasConcept C87355193 @default.
- W2063262492 hasConceptScore W2063262492C108411613 @default.
- W2063262492 hasConceptScore W2063262492C121332964 @default.
- W2063262492 hasConceptScore W2063262492C1276947 @default.
- W2063262492 hasConceptScore W2063262492C146138569 @default.
- W2063262492 hasConceptScore W2063262492C172600038 @default.
- W2063262492 hasConceptScore W2063262492C183682340 @default.
- W2063262492 hasConceptScore W2063262492C185544564 @default.
- W2063262492 hasConceptScore W2063262492C2776779350 @default.
- W2063262492 hasConceptScore W2063262492C2779900269 @default.
- W2063262492 hasConceptScore W2063262492C44870925 @default.
- W2063262492 hasConceptScore W2063262492C72886185 @default.
- W2063262492 hasConceptScore W2063262492C82706917 @default.
- W2063262492 hasConceptScore W2063262492C87355193 @default.
- W2063262492 hasIssue "1" @default.
- W2063262492 hasLocation W20632624921 @default.
- W2063262492 hasOpenAccess W2063262492 @default.
- W2063262492 hasPrimaryLocation W20632624921 @default.
- W2063262492 hasRelatedWork W1977620253 @default.
- W2063262492 hasRelatedWork W1981161373 @default.
- W2063262492 hasRelatedWork W2006468970 @default.
- W2063262492 hasRelatedWork W2061820980 @default.
- W2063262492 hasRelatedWork W2064668141 @default.
- W2063262492 hasRelatedWork W2170518318 @default.
- W2063262492 hasRelatedWork W2998147015 @default.
- W2063262492 hasRelatedWork W4210996315 @default.
- W2063262492 hasRelatedWork W4253062622 @default.
- W2063262492 hasRelatedWork W600936685 @default.
- W2063262492 hasVolume "490" @default.
- W2063262492 isParatext "false" @default.
- W2063262492 isRetracted "false" @default.
- W2063262492 magId "2063262492" @default.
- W2063262492 workType "article" @default.