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The cooling of coronal plasmas. IV. Catastrophic cooling of loops
Item metadata
dc.contributor.author | Cargill, P.J. | |
dc.contributor.author | Bradshaw, S.J. | |
dc.date.accessioned | 2014-09-25T14:01:06Z | |
dc.date.available | 2014-09-25T14:01:06Z | |
dc.date.issued | 2013-07-20 | |
dc.identifier.citation | Cargill , P J & Bradshaw , S J 2013 , ' The cooling of coronal plasmas. IV. Catastrophic cooling of loops ' , Astrophysical Journal , vol. 772 , no. 1 , 40 . https://doi.org/10.1088/0004-637X/772/1/40 | en |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | PURE: 151154104 | |
dc.identifier.other | PURE UUID: 6b090207-3471-4710-97e2-3e4e2fd3eff2 | |
dc.identifier.other | Scopus: 84879903029 | |
dc.identifier.uri | https://hdl.handle.net/10023/5503 | |
dc.description.abstract | We 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.format.extent | 5 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal | en |
dc.rights | © 2013. The American Astronomical Society. All rights reserved. | en |
dc.subject | Sun: corona | en |
dc.subject | Sun: transition region | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | The cooling of coronal plasmas. IV. Catastrophic cooling of loops | en |
dc.type | Journal article | en |
dc.description.version | Publisher PDF | en |
dc.contributor.institution | University of St Andrews. School of Mathematics and Statistics | en |
dc.identifier.doi | https://doi.org/10.1088/0004-637X/772/1/40 | |
dc.description.status | Peer reviewed | en |
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