Show simple item record

Files in this item


Item metadata

dc.contributor.authorCargill, P.J.
dc.contributor.authorBradshaw, S.J.
dc.identifier.citationCargill , P J & Bradshaw , S J 2013 , ' The cooling of coronal plasmas. IV. Catastrophic cooling of loops ' , Astrophysical Journal , vol. 772 , no. 1 , 40 .
dc.identifier.otherPURE: 151154104
dc.identifier.otherPURE UUID: 6b090207-3471-4710-97e2-3e4e2fd3eff2
dc.identifier.otherScopus: 84879903029
dc.description.abstractWe examine the radiative cooling of coronal loops and demonstrate that the recently identified catastrophic cooling is due to the inability of a loop to sustain radiative/enthalpy cooling below a critical temperature, which can be >1 MK in flares, 0.5-1 MK in active regions, and 0.1 MK in long tenuous loops. Catastrophic cooling is characterized by a rapid fall in coronal temperature, while the coronal density changes by a small amount. Analytic expressions for the critical temperature are derived and show good agreement with numerical results. This effect considerably limits the lifetime of coronal plasmas below the critical temperature.
dc.relation.ispartofAstrophysical Journalen
dc.rights© 2013. The American Astronomical Society. All rights reserved.en
dc.subjectSun: coronaen
dc.subjectSun: transition regionen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.titleThe cooling of coronal plasmas. IV. Catastrophic cooling of loopsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Mathematics and Statisticsen
dc.description.statusPeer revieweden

This item appears in the following Collection(s)

Show simple item record