旋轉黑洞的提能機制及其在天體物理中的應用.pdf

1、華中科技大學碩士學位論文旋轉黑洞的提能機制及其在天體物理中的應用姓名：左學勤申請學位級別：碩士專業(yè)：理論物理指導教師：汪定雄20060428IIAbstractTwotypesofmechanismsofextractingenergyfromarotatingblackhole(BH)areinvestigatedinthispaper:theBlfdZnajek(BZ)processmagiccoupling(MC)process.

2、wediscussedthecoexistencemodeloftheBZMCprocessaswellasseveralapplicationsofthemodelinhighenergyastrophysics.Themainresultsaresummarizedasfollows.FirstlytheunifiedanalyticalexpressionsfthepowerstquesintheBZMCprocessesared

3、erivedbasedanimprovedequivalentcircuittheconditionfthecoexistenceoftheBZprocesstheMCprocessarediscussed.Inadditionthepowersfextractingenergybythetwomechanismsarecomparedbriefly.Secondlywediscussseveralinterestingapplicat

4、ionsofthecoexistencemodelinastrophysics.Basedonthismodelwefitthejetpowersthefrequenciesofthehighfrequencyquasiperiodicoscillations(HFQPO)respectivelywhichareobservedinsomeBHXraybinaries.ItisshownthattheBHspinsrapidlyinth

5、esamedirectionwiththeaccretiondiskthespinsareconstrainedinarathernarrowrange.Italsoimpliesapossiblewaytodetecttheblackholespin.Thirdlyweintroducethreetypesofblackholesystemswithdifferentscales:stellarmassBHsupermassiveBH

6、intermediatemassBH.FurthermetheirsimilaracteristicssuchasjetsQPOsverysteepemissionarediscussedindetail.TheseresultdemonstratethattherelationsamongthemagicfieldattheBHhizontheaccretionrateofthedisktheBHmassinquasarareanal