固诺家居
全屋定制家具
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水漆柜墙门系统
海派HAPAI智能家居有限公司
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整家定制
北京红宥科技有限公司
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阻尼铰链
Title: Dark-matterpropertiesanditsconnectionwithgalaxymorphology Speaker: Jinning Liang Abstract: Fromdwarfgalaxiestobrightestclustergalaxies,theirdarkmatterhaloscontainvaluableinformationofformationandevolutionhistory.Therefore,relatingstellarcontentwithdarkmatterpropertiestostudygalaxiesbyusingsemi-analyticalmodelsandnumericalsimulationsbecomesapopularmethod.Inthistalk,Iwill firstlypresentourworkfocusingonconstrainingdarkmatterdistributionofaremarkableexampleofultradiffusegalaxiesbyusingsemi-analyticalmodelofglobularclusterdynamicalevolution.IwillshowthismethodcanbeappliedtoanyGC-richdwarfgalaxies.Secondly,Iwillshowhowgalaxymorphologyanddarkmatterhalostructurescanbeconnectedbyusingournovelkinematicdecompositionmethodincosmologicalsimulations.Thewidelyusedkinematiccriterionfordistinguishingthinandthickdiscswithaconstantthresholdoforbitalcircularitywillbeshowntobeoversimplified.Onthecontrary,thecircularitythresholdforthindiscs,aswellastheenergythresholdforseparatingthestellarhaloandthedynamicallycoldergalaxy,bothdependonhalomassandenvironment.Connectionsbetweengalaxysizeandhalostructuralparameterswillalsobepresented. Bio: Jinning LiangisaPhDstudentinInstituteforComputationalCosmologyatDurhamUniversityworkingwithProf.CedricLacey.HisresearchinterestsincludeAGNfeedback,galaxyformationtheory,galacticdynamics,galacticchemicalevolution,cosmology,numericalsimulationandsemi-analyticalmodel.HeisnowmainlyfocusingonbuildingAGN-windfeedbackmodelincosmologicalsimulationsandstudyingtheconnectionbetweenAGNfeedbackandgalaxycontent.HeobtainedbachelordegreeatWuhanUniversityandwasaresearchassistantatKIAAandSHAO. Time: 16:00-17:00PM,28/Dec, Thursday Venue:Room508(largeseminarroom),DepartmentofAstronomy