论文标题

简化的方法,用于识别潜在的红色Nova祖细胞的低质量比触点二进制系统

Simplified Method for the Identification of Low Mass Ratio Contact Binary Systems that are Potential Red Nova Progenitors

论文作者

Wadhwa, Surjit S., De Horta, Ain Y., Filipovic, Miroslav D., Tothill, Nick F. H., Arbutina, Bojan, Petrovic, Jelena, Djurasevic, Gojko

论文摘要

该研究提出了一种简化的方法,可以根据接触二进制系统的光曲线和红外(J-H)颜色的幅度识别潜在的鲜红色Nova祖细胞。我们采用了已发布的标准来触摸二进制轨道不稳定,以表明具有低质量的给定接触系统的光曲线幅度(<1.4msun)的主要幅度必须小于指定值,以使其潜在的不稳定。使用此信息,我们搜索大型调查的光度数据,以识别约50个潜在的亮红Nova祖细胞。我们分析了每个测量的光度法,以确定系统的主要其他物理参数的质量比和估计的质量。我们表明,每个系统都有表明潜在轨道不稳定性的物理特征。使用样本中的绝对参数,我们对低质量接触二进制系统的预期不稳定性分离和周期进行建模

The study presents a simplified method to identify potential bright red nova progenitors based on the amplitude of the light curve and infrared (J-H) colour of a contact binary system. We employ published criteria for contact binary orbital instability to show that the amplitude of the light curve for a given contact system with a low mass (< 1.4Msun) primary must be less than a specified value for it to be potentially unstable. Using this we search the photometric data of a large survey to identify about 50 potential bright red nova progenitors. We analyse the survey photometry of each to determine the mass ratio and from the estimated mass of the primary other physical parameters of the systems. We show that each system has physical characteristics indicating potential orbital instability. Using the absolute parameters from our sample we model the expected instability separation and period for low mass contact binary systems

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