Core Structure of Intracluster Gas: Effects of Radiative Cooling on Core Sizes

Akahori Takuya; Masai Kuniaki

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Core Structure of Intracluster Gas: Effects of Radiative Cooling on Core Sizes

机译：团簇内部气体的核心结构：辐射冷却对核心尺寸的影响

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Weinvestigatedthecorestructureofradiativelycoolingintraclustergasusingahydrodynamicscode.Wecalculatedtheevolutionofmodelclustersoftheinitialcoreradii,160a€“300a€‰Kpc,untiltheinitialcentralcoolingtime,andanalyzedtheresultantclustersusingdouble$$eta$$-model,aswasdonebyobservationalstudies.Itwasfoundthatthethus-obtainedcore-sizedistributionshowstwopeaksat$$sim30hbox{--}100,mathrm{kpc}$$and$$sim100hbox{--}300,mathrm{kpc}$$,andcanmarginallyreproducetheobserveddistribution,whichexhibitstwodistinctpeaksataround$$sim50,mathrm{kpc}$$and$$sim200,mathrm{kpc}$$.Thisresultmaysuggestaradiative-coolingoriginforsmallcores,whilecoolingisstillinsignificantinclustersoflargecores.Itshouldbenotedthatthesmallcorepeakisreproducedbyclustersthatarestillkeepingquasi-hydrostaticbalancebeforetheinitialcentralcoolingtimehaselapsed.

机译：Weinvestigatedthecorestructureofradiativelycoolingintraclustergasusingahydrodynamicscode.Wecalculatedtheevolutionofmodelclustersoftheinitialcoreradii，160A€“300A€‰千秒差距，untiltheinitialcentralcoolingtime，andanalyzedtheresultantclustersusingdouble $$ ETA $$ - 模型，aswasdonebyobservationalstudies.Itwasfoundthatthethus-obtainedcore-sizedistributionshowstwopeaksat $$ sim30hbox { - } 100，mathrm {} KPC $$和$$ sim100hbox { - } 300，mathrm {KPC} $$，andcanmarginallyreproducetheobserveddistribution，whichexhibitstwodistinctpeaksataround $$ sim50，mathrm {KPC} $$和$$ sim200，mathrm {KPC} $$ Thisresultmaysuggestaradiative-coolingoriginforsmallcores，whilecoolingisstillinsignificantinclustersoflargecores.Itshouldbenotedthatthesmallcorepeakisreproducedbyclustersthatarestillkeepingquasi-hydrostaticbalancebeforetheinitialcentralcoolingtimehaselapsed。

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《PASJ: Publications of the Astronomical Society of Japan》 |2006年第3期|共页
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Akahori Takuya; Masai Kuniaki;
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1. Core structure of intracluster gas: Effects of radiative cooling on core sizes [J] . Akahori T, Masai K PASJ: Publications of the Astronomical Society of Japan . 2006,第3期

机译：团簇内气体的核心结构：辐射冷却对核心尺寸的影响
2. Core Structure of Intracluster Gas: Effects of Radiative Cooling on Core Sizes [J] . Akahori Takuya, Masai Kuniaki PASJ: Publications of the Astronomical Society of Japan . 2006,第3期

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7. Core Structure of Intracluster Gas: Effects of Radiative Cooling on Core Sizes [O] . Takuya Akahori, Kuniaki Masai 2006

机译：团簇内部气体的核心结构：辐射冷却对核心尺寸的影响

Core Structure of Intracluster Gas: Effects of Radiative Cooling on Core Sizes

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