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1、中國科學技術(shù)大學碩士學位論文低光度塞弗特2星系和活動星系核統(tǒng)一模型姓名:KessellyAltonVanie申請學位級別:碩士專業(yè):天體物理指導教師:王俊賢201107ABSTRACTUsingShueta1.,2007’S”InvestigatingTheNuclearObscurationinTwoTypesofSeyfert2Galaxies’(Shueta1.,2007)”asaprototype,wedemonstratedthathighsignal—tO—noiseratioandbetterspatiallyresolvedd
2、atacanaccountforsomeoftheob·servationsthatareinconsistentwiththeUnificationmodelsofActiveGalacticNuclei.Newdatafortherelativelylowluminousseyfert2sources((seyfert2withluminos·ity<1041erg/s),whichwouldn’tbeincorporatedintheconclusionsofShueta1.,2007,aresoughtforandanalyzed,t
3、oexaminewhetherdoingSOwouldleadtothein—clusionallofallofShueta1.’Ssampleintotheftconclusions.Weaccomplishedthattasksuccessfullyandthenembarkedontheslipperyslopeofquestioningsomehigh-lycherishedconceptsuponwhichcurrentunderstandingsofActiveGalacticNucleiareanchoredandindoing
4、SOprovidedpersonalperspectivesonthewayforwardforacomprehensiveunderstandingofAGN.Keywords:AGN中國科學技術(shù)大學碩士畢業(yè)論文Chapter1IntroductionTheUniverseistheplaygroundforvastarrayoffascinatingandcomplexphenomenaOneofthemostfascinatingandsomewhatmysteriousofthesefascinatingandcomplexpheno
5、menaiSActiveGalacticNuclei(AGN).ActiveGalacticNuc’leiisthegenericnamegiventOphenomenainwhichprodigiousamountofrapidlyvaryingradiations,whichareemittedacrosstheentireelectromagneticspectrum,areobservedtobecomingfromverysmalldistantregions.Inthisthesis,theUnifiedModelsofActiv
6、eGalacticNucleiwillbesubjectedtocriticalscrutiny.Thegoalistotestwhetherhighersignal-to-noiseandbetterandspatiallyresolveddatacangetridofsomeoftheobservedinconsistenciesassociatedwiththeUnificationmodelsofActiveGalacticNuclei(AGN).Also,impressionsaboutthecurrenttrendsinAGNst
7、udieswillbegivenandapersonalperspectiveonthewayforwardwillbeproffered.Chapter1takesaquickvoyagethroughthedefiningcharacteristicsofActiveGalacticNucleiandsetthebasisfortheargumentsinsubsequentchapters.InChapter2.theUnificationschemesforActiveGalacticNucleiiSintroduced,somein
8、consistencieswithAGNUnificationschemesarediscussedandaprocedurethatwilIbeusedtotes