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dc.contributor.authorXue, Lizh_CN
dc.contributor.authorSadowski, Aleksanderzh_CN
dc.contributor.authorAbramowicz, Marek A.zh_CN
dc.contributor.authorLu, Ju-Fuzh_CN
dc.contributor.author薛力zh_CN
dc.contributor.author卢炬甫zh_CN
dc.date.accessioned2015-07-22T07:23:23Z
dc.date.available2015-07-22T07:23:23Z
dc.date.issued2011-07zh_CN
dc.identifier.citationASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2011,195(1)zh_CN
dc.identifier.otherWOS:000292590200007zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/91654
dc.description973 Program [2009CB824800]; National Natural Science Foundation of China [10833002, 11003016]; Natural Science Foundation of Fujian Province of China [2010J01017]; Polish Ministry of Science [N203 0093/1466, N203 304035, N203 380336, N203 381436]zh_CN
dc.description.abstractFor the first time ever, we derive equations governing the time evolution of fully relativistic slim accretion disks in the Kerr metric and numerically construct their detailed non-stationary models. We discuss applications of these general results to a possible limit-cycle behavior of thermally unstable disks. Our equations and numerical method are applicable in a wide class of possible viscosity prescriptions, but in this paper we use a diffusive form of the "standard alpha prescription" that assumes that the viscous torque is proportional to the total pressure. In this particular case, we find that the parameters that dominate the limit-cycle properties are the mass-supply rate and the value of the alpha-viscosity parameter. Although the duration of the cycle (or the outburst) does not exhibit any clear dependence on the black hole spin, the maximal outburst luminosity (in the Eddington units) is positively correlated with the spin value. We suggest a simple method for a rough estimate of the black hole spin based on the maximal luminosity and the ratio of outburst to cycle durations. We also discuss a temperature-luminosity relation for the Kerr black hole accretion disk limit cycle. Based on these results, we discuss the limit-cycle behavior observed in microquasar GRS 1915+105. We also extend this study to several non-standard viscosity prescriptions, including a "delayed heating" prescription recently addressed by the MHD simulations of accretion disks.zh_CN
dc.language.isoen_USzh_CN
dc.publisherASTROPHYS J SUPPL Szh_CN
dc.source.urihttp://dx.doi.org/10.1088/0067-0049/195/1/7zh_CN
dc.subjectGRS 1915+105zh_CN
dc.subjectRADIATIONzh_CN
dc.subjectVARIABILITYzh_CN
dc.subjectINSTABILITYzh_CN
dc.subjectDISCSzh_CN
dc.subjectOSCILLATIONSzh_CN
dc.subjectVISCOSITYzh_CN
dc.subjectFLOWSzh_CN
dc.subjectMODELzh_CN
dc.subjectSIMULATIONSzh_CN
dc.titleSTUDIES OF THERMALLY UNSTABLE ACCRETION DISKS AROUND BLACK HOLES WITH ADAPTIVE PSEUDOSPECTRAL DOMAIN DECOMPOSITION METHOD II LIMIT-CYCLE BEHAVIOR IN ACCRETION DISKS AROUND KERR BLACK HOLESzh_CN
dc.typeArticlezh_CN


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