RT Leonis Minoris: Does It Belong to an A- or W-Type Overcontact Binary System?

Qian Sheng-Bang; He Jia-Jia; Xiang Fu-Yuan

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RT Leonis Minoris: Does It Belong to an A- or W-Type Overcontact Binary System?

机译：RT Leonis Minoris：它是否属于A型或W型超接触二元系统？

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NewphotometricobservationsandanalysesoftheWUMa-typebinarysystemRTLeonisMinorisarepresented.Aperiodstudywithourfourtimesoflightminimum,includingothereclipsetimesfromtheliterature,suggeststhattheorbitalperiodofthebinarystarisvariable.TheOa€“Ccurvecanbeexplainedasacyclicvariationwithanamplitudeof0:d0049andaperiodof46.7yr.Photometricsolutionswerederivedbyusingthe2003versionoftheWilsona€“Devinneymethod(1971,ApJ,166,605),andabsoluteparametersofthesystemweredetermined.TheresultsindicatethatRTLMiisanambiguousWUMa-typeovercontactsystemforthefollowingreasons:(i)thedepthsofbothminimaarenearlyequal,whichmakesitverydifficulttodistinguishwhetheritbelongstoanA-orW-typesystem;(ii)theprimaryminimainHoffmanna€?slightcurvesareanoccultation,indicatingaW-typesystem,whiletheprimaryminimuminourlightcurveisatransit,suggestinganA-typelightvariation;and(iii)thoughourlightcurveshowsanA-typevariation,thephotometricsolutionsindicateahighersecondarytemperatureofT2=6513K(T1=6400K),makingthebinarysystem,surprisingly,ofW-type.ThesemayindicatethatBinnendijka€?sclassificationbasedontheshapeofthelightcurvecannotrevealthephysicalpropertiesofWUMa-typebinarystarsofthiskind.

机译：NewphotometricobservationsandanalysesoftheWUMa-typebinarysystemRTLeonisMinorisarepresented.Aperiodstudywithourfourtimesoflightminimum，includingothereclipsetimesfromtheliterature，suggeststhattheorbitalperiodofthebinarystarisvariable.TheOa€“Ccurvecanbeexplainedasacyclicvariationwithanamplitudeof0：d0049andaperiodof46.7yr.Photometricsolutionswerederivedbyusingthe2003versionoftheWilsona€“Devinneymethod（1971，APJ，166605），andabsoluteparametersofthesystemweredetermined.TheresultsindicatethatRTLMiisanambiguousWUMa-typeovercontactsystemforthefollowingreasons：（ⅰ）thedepthsofbothminimaarenearlyequal，whichmakesitverydifficulttodistinguishwhetheritbelongstoanA-ORW-类型系统;（二霍夫曼纳的主要微型主干曲线，表明W型系统，而次要微型最小光曲线过境，则建议采用A型光变;并且（iii）整个光曲线显示出A型变异，光度解决方案表明系统在T2处的二次温度K较高，T2 = 6513这可能表明Binnendijka基于光曲线形状的分类无法揭示WUMa型双星软软晶状体的物理特性。

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《PASJ: Publications of the Astronomical Society of Japan》 |2008年第1期|共页
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Qian Sheng-Bang; He Jia-Jia; Xiang Fu-Yuan;
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1. RT Leonis Minoris: Does it belong to an A- or W-Type overcontact binary system? [J] . Qian SB, He JJ, Xiang FY PASJ: Publications of the Astronomical Society of Japan . 2008,第1期

机译：RT Leonis Minoris：它属于A型或W型过接触二进制系统吗？
2. HIGH FILL-OUT, EXTREME MASS RATIO OVERCONTACT BINARY SYSTEMS. X. THE NEWLY DISCOVERED BINARY XY LEONIS MINORIS [J] . S.-B. Qian123, L. Liu123, L.-Y. Zhu123, The Astrophysical journal . 2011,第5期

机译：高填充，极高质量比过接触二进制系统。 X.新发现的二元XY LEONIS MINORIS
3. Period Changes of AO Camelopardalis and AM Leonis and Their Implications for the Presence of Tertiary Components and the Evolutionary States of the Two Overcontact Binary Systems [J] . Sheng-Bang Qian12, Jiajia He12, Fuyuan Xiang3, The Astrophysical journal . 2007,第3期

机译：AO Camelopardalis和AM Leonis的周期变化及其对两个超接触二元系统的三次分量和演化状态的影响
4. New Progress on High Fill-Out, Extreme Mass Ratio Overcontact Binary Systems [C] . He J., Qian S., Soonthornthum B. Pacific Rim Conference on Stellar Astrophysics . 2012

机译：高填充的新进展，极端质量比过渡二元系统
5. A study of binary stars: Absolute properties of the eclipsing binary star RT Coronae Borealis [D] . Sabby, Jeffrey Allen. 2004

机译：二元恒星的研究：Ecliping二元星RT Coronae Borealis的绝对特性
6. Neuronostatin inhibits cardiac contractile function via a protein kinase A- and JNK-dependent mechanism in murine hearts [O] . Yinan Hua, Heng Ma, Willis K. Samson, -1

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7. RT Leonis Minoris: Does It Belong to an A- or W-Type Overcontact Binary System? [O] . Sheng-Bang Qian, Jia-Jia He, Fu-Yuan Xiang 2008

机译：RT Leonis minoris：它属于A-或W型外接二进制系统吗？
8. A photometric study of the eclipsing binary star system RU Ursa Minoris [R] . Wood, D. B. 1971

机译：对食双星系统RU Ursa minoris的光度学研究

RT Leonis Minoris: Does It Belong to an A- or W-Type Overcontact Binary System?

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