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Fine-Scale Structures of the Evershed Effect Observed by the Solar Optical Telescope aboard Hinode

机译:日光层上太阳光学望远镜观测到的散发效应的精细尺度结构

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Thesmall-scalestructureoftheEvershedeffectisbeingstudiedusingdataobtainedbytheSpectropolarimeterandtheBroadbandFilterImageroftheSolarOpticalTelescopeaboardHinode.WefindthattheEvershedflowstartsattheleadingedgeofinwardlymigratingbrightpenumbralgrains,andturnstonearlyahorizontalflowpreferentiallyinthedarklanesofthepenumbra.Anumberofsmallelongatedregionsthathaveanupwardmotionof$$sim$$1a€‰kma€‰s$$^{-1}$$arefoundinthedeepphotospheredistributedoverthepenumbra.Theyarecospatialwithbrightgrainsandhaverelativelyhorizontalmagneticfields.Anumberofpatcheshavingastrongdownwardmotionassociatedwiththeoppositemagneticpolarityfromthesunspotarealsofoundinthemidandouterpenumbra.TheycouldbeidentifiedasfootpointsoftheEvershedflowchannels,thoughtheidentificationofindividualpairsisnotstraightforward.Ourresultsprovidestrongsupportforsomerecentfindingsfromground-basedhigh-resolutionobservations,andareingeneralagreementwiththewell-knownpictureoftheuncombedstructureofthepenumbra,inwhichthepenumbraeconsistofrisingfluxtubescarryingnearlyhorizontalEvershedflowsembeddedinmoreverticalbackgroundmagneticfields.
机译:Thesmall-scalestructureoftheEvershedeffectisbeingstudiedusingdataobtainedbytheSpectropolarimeterandtheBroadbandFilterImageroftheSolarOpticalTelescopeaboardHinode.WefindthattheEvershedflowstartsattheleadingedgeofinwardlymigratingbrightpenumbralgrains,andturnstonearlyahorizo​​ntalflowpreferentiallyinthedarklanesofthepenumbra.Anumberofsmallelongatedregionsthathaveanupwardmotionof $$ SIM $$ 1A€‰KMA€‰小号$$ ^ { - 1} $$ arefoundinthedeepphotospheredistributedoverthepenumbra.Theyarecospatialwithbrightgrainsandhaverelativelyhorizo​​ntalmagneticfields.Anumberofpatcheshavingastrongdownwardmotionassociatedwiththeoppositemagneticpolarityfromthesunspotarealsofoundinthemidandouterpenumbra.TheycouldbeidentifiedasfootpointsoftheEvershedflowchannels,thoughtheidentificationofindividualpairsisnotstraightforward.Ourresultsprovidestrongsupportforsomerecentfindingsfromground-basedhigh-resolutionobservations,andareingeneralagreementwiththewell-knownpictureoftheuncombedstructureofthepenumbra,其中的半身像由上升组成通量管几乎在水平水平上散布在更多垂直背景磁场中。

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