论文标题
喷射喷射共生星MWC 560的闪烁
Flickering of the jet-ejecting symbiotic star MWC 560
论文作者
论文摘要
我们分析了射流散发共生星MWC560中积聚白矮人的短期变异性（闪烁）的光学光度数据。观察结果是在2011年11月至2019年10月期间的17晚中获得的。颜色磁性图表明，随着它的变化，系统的热点成分变红了。对于闪烁的来源，我们发现它具有0.14 <b-v <0.40的颜色，温度为6300 <t_fl <11000 K，半径1.2 <r_fl <18 rsun。我们发现B频率幅度与闪烁源的平均半径之间存在强相关性（相关系数为0.76，显着性<0.001） - 系统的亮度增加了闪烁源的尺寸也增加了。估计的温度与灾难变量的亮点相似。在2019年，闪烁不足，热组件的B-V颜色变得更蓝。
We analyse optical photometric data of short term variability (flickering) of the accreting white dwarf in the jet-ejecting symbiotic star MWC560. The observations are obtained in 17 nights during the period November 2011 - October 2019. The colour-magnitude diagram shows that the hot component of the system becomes redder as it gets brighter. For the flickering source we find that it has colour 0.14 < B-V < 0.40, temperature in the range 6300 < T_fl < 11000 K, and radius 1.2 < R_fl < 18 Rsun. We find a strong correlation (correlation coefficient 0.76, significance < 0.001) between B band magnitude and the average radius of the flickering source - as the brightness of the system increases the size of the flickering source also increases. The estimated temperature is similar to that of the bright spot of cataclysmic variables. In 2019 the flickering is missing, and the B-V colour of the hot component becomes bluer.
