Helical Tomography of an Accretion Disk by Superhump Light Curves of the 2001 Outburst of WZ Sagittae

Osaki Yoji

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Helical Tomography of an Accretion Disk by Superhump Light Curves of the 2001 Outburst of WZ Sagittae

机译：WZ射手座2001年爆发的超驼峰光曲线对吸积盘的螺旋层析成像。

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Anewmethodforanalyzingcomplexsuperhumplightcurvesforthe2001outburstofWZSagittaeisproposed.Thecomplexityarisesbecauseintrinsicallytime-varyingandnon-axisymmetricdistributionsofsuperhumplightsourcesarecoupledwiththeaspecteffectsaroundthebinaryorbitalphasebecauseofitshighorbitalinclination.Thenewmethodcandisentanglethesecomplexitiesbyseparatingthenon-axisymmetricspatialdistributioninthediskfromthetimevariationwiththesuperhumpperiod.Itmaybecalledahelicaltomographyofanaccretiondiskbecauseitcanreconstructaseriesofdiskimages(i.e.,diska€?sazimuthalstructures)atdifferentsuperhumpphases.Thepowerspectraldataofsuperhumplightcurvesofthe2001outburstofWZSgebyPattersonetal.(2002,PASP,114,721)arenowinterpretedunderanewlightbasedontheconceptofhelicaltomography,andtheazimuthalwavenumbersofvariousfrequencymodesareidentified.Inparticular,afrequencycomponent,$$nomega_0-Omega$$,where$$omega_0$$and$$Omega$$aretheorbitalfrequencyandalowfrequencyoftheapsidalprecessionoftheeccentricdisk,isunderstoodasan$$(n-1)$$-armedtravelingwaveinthedisk.Avigorousexcitationofawavecomponentof$$cos(2Theta-3omega_0t)$$inthefirstweekofthesuperhumperaofWZSge,where$$Theta$$istheazimuthalangle,supportsLubowa€?s(1991,AAA54.064.175)theoryofnon-linearwavecouplingoftheeccentricLindbladresonanceforthesuperhumpphenomenon.ThismethodcaninprinciplebeappliedtootherSUUMastarswithhighorbitalinclinationiflightcurvesarefullycoveredoverthebeatcycle.

机译：Anewmethodforanalyzingcomplexsuperhumplightcurvesforthe2001outburstofWZSagittaeisproposed.Thecomplexityarisesbecauseintrinsicallytime-varyingandnon-axisymmetricdistributionsofsuperhumplightsourcesarecoupledwiththeaspecteffectsaroundthebinaryorbitalphasebecauseofitshighorbitalinclination.Thenewmethodcandisentanglethesecomplexitiesbyseparatingthenon-axisymmetricspatialdistributioninthediskfromthetimevariationwiththesuperhumpperiod.Itmaybecalledahelicaltomographyofanaccretiondiskbecauseitcanreconstructaseriesofdiskimages（即磁盘A€？sazimuthalstructures）atdifferentsuperhumpphases.Thepowerspectraldataofsuperhumplightcurvesofthe2001outburstofWZSgebyPattersonetal。（2002，PASP，114721）arenowinterpretedunderanewlightbasedontheconceptofhelicaltomography，andtheazimuthalwavenumbersofvariousfrequencymodesareidentified.Inparticular，afrequencycomponent，$$ nomega_0欧米茄$$，其中$ $ omega_0 $$和$$ Omega $是轨道频率和偏心盘的跳动进动的低频，这是由（n-1）$$ -armedtravelingwaveinthedisk.Avigorousexcitationofawavecomponentof $$ COS（2θ处-3omega_0t）$$ inthefirstweekofthesuperhumperaofWZSge，其中$$西塔$$ istheazimuthalangle，supportsLubowa€？S（1991，AAA54.064.175）theoryofnon-linearwavecouplingoftheeccentricLindbladresonanceforthesuperhumpphenomenon.ThismethodcaninprinciplebeappliedtootherSUUMastarswithhighorbitalinclinationiflightcurvesarefullycoveredoverthebeatcycle。

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《PASJ: Publications of the Astronomical Society of Japan》 |2003年第4期|共页
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1. Observations of 2001 superoutburst of WZ Sagittae: Comparison of the morphology of the UBVRI light curves [J] . Dmitrienko E.S. Astrophysics and space science . 2011,第1期

机译：WZ射手座2001年超爆发观测：UBVRI光曲线的形态比较
2. Observations of 2001 superoutburst of WZ Sagittae: comparison of the morphology of the UBVRI light curves [J] . E. S. Dmitrienko Astrophysics and Space Science . 2011,第1期

机译：2001年WZ射手座超级爆发的观测：UBVRI光曲线的形态比较
3. Reconstruction of the Structure of Accretion Disks in Dwarf Novae from the Multi-Band Light Curves of Early Superhumps [J] . Makoto Uemura, Taichi Kato, Tomohito Ohshima, PASJ: Publications of the Astronomical Society of Japan . 2012,第5期

机译：从早期超级驼峰的多波段光曲线重建矮星新星的吸积盘结构
4. Outbursts of WZ Sagittae [C] . O.M. Matthews, M.R. Truss, G.A. Wynn, Conference on the astrophysics of cataclysmic variables and related objects . 2005

机译：WZ SAGITTAE的爆发
5. Helical Tomography of an Accretion Disk by Superhump Light Curves of the 2001 Outburst of WZ Sagittae [O] . Yoji Osaki 2003

机译：由2001年爆发的超级爆炸曲线的螺旋断层扫描

Helical Tomography of an Accretion Disk by Superhump Light Curves of the 2001 Outburst of WZ Sagittae

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