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Discovery of a Temperature-Dependent Upflow in the Plage Region during a Gradual Phase of the X-Class Flare

机译:在X级耀斑的渐进阶段在色浆区发现与温度有关的上流

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WepresentHinode/EISrasterscanobservationsoftheplageregiontakenduringthegradualphaseoftheGOESX3.2flarethatoccurredon2006December13.Theplageregionislocated200$${}^{primeprime}$$eastoftheflarearcade.Theplageregionhasasmalltransientcoronalhole.ThetransientcoronalholeisstronglyaffectedbyanX-classflare,andupflowsareobservedatitsboundary.Multi-wavelengthspectralobservationsallowustodeterminevelocitiesfromtheDopplershiftsatdifferenttemperatures.StrongupflowsalongwithstationaryplasmahavebeenobservedintheFeXVline284.2a€‰?…(log$$T/$$a€‰K$$=6.3$$)intheplageregion.Thestrongupflowsreachalmost150a€‰kma€‰s$$^{-1}$$,whichwasestimatedbyatwo-componentGaussianfitting.Ontheotherhand,atalowercorona/transitionregiontemperature(HeII,256.3a€‰?…,log$$T/$$a€‰K$$=$$4.9),veryweakupflows,almoststationary,havebeenobserved.Wefindthattheseupflowvelocitiesclearlydependonthetemperaturewiththehottestline,FeXV,showingthefastestupflowvelocityandthesecond-highestline,FeXIV,showingthesecond-highestupflowvelocity(130a€‰kma€‰s$$^{-1}$$).Allvelocitiesarebelowthesoundspeed.Thetrendoftheupflowdependenceontemperaturedramaticallychangesat1a€‰MK.Theseresultssuggestthatheatingmayhaveanimportantroleforstrongupflow.
机译:WepresentHinode / EISrasterscanobservationsoftheplageregiontakenduringthegradualphaseoftheGOESX3.2flarethatoccurredon2006December13.Theplageregionislocated200 $$ {} ^ {} primeprime $$ eastoftheflarearcade.Theplageregionhasasmalltransientcoronalhole.ThetransientcoronalholeisstronglyaffectedbyanX-classflare,andupflowsareobservedatitsboundary.Multi-wavelengthspectralobservationsallowustodeterminevelocitiesfromtheDopplershiftsatdifferenttemperatures.StrongupflowsalongwithstationaryplasmahavebeenobservedintheFeXVline284.2a€‰?...(日志$$ T / $$一个€‰ķ $$ = 6.3 $$)。最大流量达到150kma€s $$ {{-1} $$,这是由两个分量的高斯拟合所估计的。另一方面,电晕/过渡区温度降低了(HeII,256.3a€?…,log $$ T / $$$$$$ = $ 4.9),已经观察到非常弱的向上流动,几乎是平稳的。我们发现,这些向上流动的速度明显取决于温度,这与最热线FeXV显示最快的向上流动速度和第二高的线FeXIV,显示了第二最高的向上流动速度(130‰)。 $$ ^ {-1} $$)。所有速度均低于声速。上升流对温度的依赖性在1KMK时急剧变化。结果表明,加热可能具有重要的上升角。

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