Superoutburst of SDSSa€‰J090221.35+381941.9: First measurement of mass ratio in an AM??CVn-type object using growing superhumps

Kato Taichi; Ohshima Tomohito; Denisenko Denis; Dubovsky Pavol A.; Kudzej Igor; Stein William; de Miguel Enrique; Henden Arne; Miller Ian; Antonyuk Kirill; Antonyuk Oksana; Pit Nikolaj; Sosnovskij Aleksei; Baklanov Alex; Babina Julia; Pavlenko Elena P.; Matsumoto Kazunari; Fukushima Daiki; Takenaka Megumi; Kawabata Miho; Sakai Daisuke; Maeda Kazuki; Matsuda Risa; Matsumoto Katsura; Littlefield Colin; Oksanen Arto; Itoh Hiroshi; Masi Gianluca; Nocentini Francesca; Schmeer Patrick; Pickard Roger D.; Kiyota Seiichiro; Dvorak Shawn; Ulowetz Joseph; Maeda Yutaka; Michel Ra?ol; Shugarov Sergey Yu.; Chochol Drahomir; Nov??k Rudolf

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Superoutburst of SDSSa€‰J090221.35+381941.9: First measurement of mass ratio in an AM??CVn-type object using growing superhumps

机译：SDSSa€J090221.35 + 381941.9的超爆发：使用增长的超级驼峰首次测量AM ?? CVn型物体的质量比

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WereportonasuperoutburstoftheAM??CVn-typeobjectSDSSa€‰J090221.35+381941.9[J0902;orbitalperiod0.03355(6)a€‰d]in2014Marcha€“April.Theentiresuperoutburstconsistedofaprecursoroutburstandthemainsuperoutburst,followedbyashortrebrightening.Duringtherisingphaseofthemainsuperoutburst,wedetectedgrowingsuperhumps(stageAsuperhumps)withaperiodof0.03409(1)a€‰d.Duringtheplateauphaseofthesuperoutburst,superhumpswithashorterperiod(stageBsuperhumps)wereobserved.UsingtheorbitalperiodandtheperiodofstageAsuperhumps,wewereabletomeasurethedynamicalprecessionrateoftheaccretiondiskatthe3:1resonance,andobtainedamassratio(q)of0.041(7).ThisisthefirstsuccessfulmeasurementofthemassratioinanAM??CVn-typeobjectaccomplishedbytherecentlydevelopedstageAsuperhumpmethod.Thevalueisgenerallyinagreementwiththatbasedonthetheoreticalevolutionarymodel.TheorbitalperiodofJ0902isthelongestamongthoseoftheoutburstingAM??CVn-typeobjects,andaperiodontheborderlinebetweentheoutburstingsystemandthesystemwithastablecooldiskappearstobelongerthanonesupposed.

机译：2014年3月，J090221.35 + 381941.9 [J0902;轨道周期0.03355（6）a]引起了AM ?? CVn型物体的超爆发。4月份，超高爆裂持续了一段时间（紧随其后）。 ‰d.Duringtheplateauphaseofthesuperoutburst，superhumpswithashorterperiod（stageBsuperhumps）wereobserved.UsingtheorbitalperiodandtheperiodofstageAsuperhumps，wewereabletomeasurethedynamicalprecessionrateoftheaccretiondiskatthe3：1resonance，andobtainedamassratio（q）of0.041（7）.ThisisthefirstsuccessfulmeasurementofthemassratioinanAM ?? CVN-typeobjectaccomplishedbytherecentlydevelopedstageAsuperhumpmethod.Thevalueisgenerallyinagreementwiththatbasedonthetheoreticalevolutionarymodel.TheorbitalperiodofJ0902isthelongestamongthoseoftheoutburstingAM ?? CVN-typeobjects，andaperiodontheborderlinebetweentheoutburstingsystemandthesystemwithastablecooldiskappearstobelonge乙酮被假定。

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《PASJ: Publications of the Astronomical Society of Japan》 |2014年第5期|共页
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Kato Taichi; Ohshima Tomohito; Denisenko Denis; Dubovsky Pavol A.; Kudzej Igor; Stein William; de Miguel Enrique; Henden Arne; Miller Ian; Antonyuk Kirill; Antonyuk Oksana; Pit Nikolaj; Sosnovskij Aleksei; Baklanov Alex; Babina Julia; Pavlenko Elena P.; Matsumoto Kazunari; Fukushima Daiki; Takenaka Megumi; Kawabata Miho; Sakai Daisuke; Maeda Kazuki; Matsuda Risa; Matsumoto Katsura; Littlefield Colin; Oksanen Arto; Itoh Hiroshi; Masi Gianluca; Nocentini Francesca; Schmeer Patrick; Pickard Roger D.; Kiyota Seiichiro; Dvorak Shawn; Ulowetz Joseph; Maeda Yutaka; Michel Ra?ol; Shugarov Sergey Yu.; Chochol Drahomir; Nov??k Rudolf;
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1. Superoutburst of SDSS J090221.35+381941.9: First measurement of mass ratio in an AM CVn-type object using growing superhumps [J] . Kato Taichi, Ohshima Tomohito, Denisenko Denis, PASJ: Publications of the Astronomical Society of Japan . 2014,第5期

机译：SDSS J090221.35 + 381941.9的超爆发：使用不断增长的超驼峰首次测量AM CVn型物体的质量比
2. The 2015 superoutburst of QZ?Virginis: Detection of growing superhumps between the precursor and main superoutburst [J] . Akira Imada, Taichi Kato, Keisuke Isogai, PASJ: Publications of the Astronomical Society of Japan . 2017,第4期

机译：2015年QZ？Virginis的超级爆发：检测前兆和主要超级爆发之间不断增长的超级驼峰
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7. Superoutburst of SDSS J090221.35+381941.9: First Measurement of Mass Ratio in an AM CVn-Type Object using Growing Superhumps [O] . Kato, Taichi, Ohshima, Tomohito, Denisenko, Denis, 2014

机译：sDss的突发爆发J090221.35 + 381941.9：质量的首次测量使用生长超级电容的am CVn类型对象中的比率

Superoutburst of SDSSa€‰J090221.35+381941.9: First measurement of mass ratio in an AM??CVn-type object using growing superhumps

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