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dc.contributor.authorPlowman, Joseph
dc.contributor.authorKankelborg, Charles
dc.contributor.authorLongcope, Dana W.
dc.date.accessioned2016-03-31T00:05:01Z
dc.date.available2016-03-31T00:05:01Z
dc.date.issued2009-10-27
dc.identifier.citationPlowman, Joseph E., Charles C. Kankelborg, and Dana W. Longcope. “CORONAL LOOP EXPANSION PROPERTIES EXPLAINED USING SEPARATORS.” The Astrophysical Journal 706, no. 1 (October 27, 2009): 108–112. doi:10.1088/0004-637x/706/1/108.en_US
dc.identifier.issn0004-637X
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/9657
dc.description.abstractOne puzzling observed property of coronal loops is that they are of roughly constant thickness along their length. Various studies have found no consistent pattern of width variation along the length of loops observed by TRACE and SOHO. This is at odds with expectations of magnetic flux tube expansion properties, which suggests that loops are widest at their tops, and significantly narrower at their footpoints. Coronal loops correspond to areas of the solar corona which have been preferentially heated by some process, so this observed property might be connected to the mechanisms that heat the corona. One means of energy deposition is magnetic reconnection, which occurs along field lines called separators. These field lines begin and end on magnetic null points, and loops forming near them can therefore be relatively wide at their bases. Thus, coronal energization by magnetic reconnection may replicate the puzzling expansion properties observed in coronal loops. We present results of a Monte Carlo survey of separator field line expansion properties, comparing them to the observed properties of coronal loops.en_US
dc.description.sponsorshipThis work was supported in part by NASA grant NNX07AI01G.en_US
dc.titleCORONAL LOOP EXPANSION PROPERTIES EXPLAINED USING SEPARATORSen_US
dc.typeArticleen_US
mus.citation.extentfirstpage108en_US
mus.citation.extentlastpage112en_US
mus.citation.issue1en_US
mus.citation.journaltitleAstrophysical Journalen_US
mus.citation.volume706en_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.identifier.doi10.1088/0004-637x/706/1/108en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentPhysics.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage3en_US


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