Matches in SemOpenAlex for { <https://semopenalex.org/work/W1553718906> ?p ?o ?g. }
Showing items 1 to 63 of
63
with 100 items per page.
- W1553718906 abstract "We present the evolution of magnetic nonpotentiality associated with an X-class flare in AR 6919 using a set of MSO (Mees Solar Observatory) magnetograms. The magnetogram data were obtained before and after the flare, using the Haleakala Stokes Polarimeter which provides simultaneous Stokes profiles of the Fe I doublet 6301.5 and 6302.5. A nonlinear least square method was adopted to derive the magnetic field configuration from the observed Stokes profiles and a multi-step ambiguity solution method was employed to resolve the 180 degree ambiguity. From the ambiguity-resolved vector magnetograms, we have derived a set of physical quantities characterizing the field configuration such as vertical current density, magnetic shear angle, angular shear and magnetic free energy density. We have examined their changes before and after the flare occurrence and obtained the following results. 1) There was a flux decrease in both polarities around a delta-type sunspot region, where an X-class flare occurred. 2) The vertical current near the delta sunspot region was strongly enhanced before the flare. 3) The magnetic shear near the delta sunspot region increased before the flare and then decreased after it. 4) The sum of magnetic energy density significantly decreased before the flare onset, implying that magnetic free energy was released through the flaring processes." @default.
- W1553718906 created "2016-06-24" @default.
- W1553718906 creator A5044774598 @default.
- W1553718906 creator A5046536974 @default.
- W1553718906 creator A5047692472 @default.
- W1553718906 creator A5055180653 @default.
- W1553718906 creator A5063311677 @default.
- W1553718906 date "1999-10-05" @default.
- W1553718906 modified "2023-09-23" @default.
- W1553718906 title "Evolution of Magnetic Non-potentiality associated with an X-class Flare in AR 6919" @default.
- W1553718906 hasPublicationYear "1999" @default.
- W1553718906 type Work @default.
- W1553718906 sameAs 1553718906 @default.
- W1553718906 citedByCount "0" @default.
- W1553718906 crossrefType "posted-content" @default.
- W1553718906 hasAuthorship W1553718906A5044774598 @default.
- W1553718906 hasAuthorship W1553718906A5046536974 @default.
- W1553718906 hasAuthorship W1553718906A5047692472 @default.
- W1553718906 hasAuthorship W1553718906A5055180653 @default.
- W1553718906 hasAuthorship W1553718906A5063311677 @default.
- W1553718906 hasConcept C115260700 @default.
- W1553718906 hasConcept C121332964 @default.
- W1553718906 hasConcept C157479481 @default.
- W1553718906 hasConcept C185001636 @default.
- W1553718906 hasConcept C197370839 @default.
- W1553718906 hasConcept C2779471453 @default.
- W1553718906 hasConcept C2779588948 @default.
- W1553718906 hasConcept C44870925 @default.
- W1553718906 hasConcept C62520636 @default.
- W1553718906 hasConceptScore W1553718906C115260700 @default.
- W1553718906 hasConceptScore W1553718906C121332964 @default.
- W1553718906 hasConceptScore W1553718906C157479481 @default.
- W1553718906 hasConceptScore W1553718906C185001636 @default.
- W1553718906 hasConceptScore W1553718906C197370839 @default.
- W1553718906 hasConceptScore W1553718906C2779471453 @default.
- W1553718906 hasConceptScore W1553718906C2779588948 @default.
- W1553718906 hasConceptScore W1553718906C44870925 @default.
- W1553718906 hasConceptScore W1553718906C62520636 @default.
- W1553718906 hasOpenAccess W1553718906 @default.
- W1553718906 hasRelatedWork W1547554078 @default.
- W1553718906 hasRelatedWork W1763130344 @default.
- W1553718906 hasRelatedWork W2052384669 @default.
- W1553718906 hasRelatedWork W2090200992 @default.
- W1553718906 hasRelatedWork W2185100054 @default.
- W1553718906 hasRelatedWork W2235665095 @default.
- W1553718906 hasRelatedWork W2883637068 @default.
- W1553718906 hasRelatedWork W2910299300 @default.
- W1553718906 hasRelatedWork W2934344665 @default.
- W1553718906 hasRelatedWork W2969458458 @default.
- W1553718906 hasRelatedWork W2986511535 @default.
- W1553718906 hasRelatedWork W2995345218 @default.
- W1553718906 hasRelatedWork W3007409758 @default.
- W1553718906 hasRelatedWork W3023054668 @default.
- W1553718906 hasRelatedWork W3099481120 @default.
- W1553718906 hasRelatedWork W3099620310 @default.
- W1553718906 hasRelatedWork W3102617870 @default.
- W1553718906 hasRelatedWork W3103312327 @default.
- W1553718906 hasRelatedWork W3103384398 @default.
- W1553718906 hasRelatedWork W3121444131 @default.
- W1553718906 isParatext "false" @default.
- W1553718906 isRetracted "false" @default.
- W1553718906 magId "1553718906" @default.
- W1553718906 workType "article" @default.