矮新星的OAO/MITSuME测光。III。CSS130418：174033+414756
OAO/MITSuME Photometry of Dwarf Novae. III. CSS130418:174033+414756
摘要：
我们报告了短周期矮新星CSS130418：174033+414756在2013年超级爆发期间的多色测光。该系统在A阶段有一个异常短的超峰周期，为0.046346（67）d，是矮新星中最短的周期之一。我们发现，在$g' - I_{\rm c}$颜色变化的最蓝的峰值往往符合亮度最小值的超级驼峰调制。我们还研究了$g'$、$R_{\rm c}$和$I_{\rm c}$波段的夜间平均超峰振幅，发现它们对波长的依赖性较小。这些特性很可能与矮新星的超级驼峰相同。我们成功地获得了$g' - R_{\rm c}$和$R_{\rm c} - I_{\rm c}$颜色在时间下降。与WZ Sge型矮新星的其他倾角相比，颜色指数显着更蓝。利用超峰的生长周期，我们估计了质量比为$q$ = 0.077（5），这比以前的研究大得多。
英文摘要：
We report on multicolour photometry of the short period dwarf nova CSS130418:174033+414756 during the 2013 superoutburst. The system showed an unusually short superhump period with 0.046346(67) d during stage A, which is one of the shortest periods among dwarf novae below the period minimum. We found that the bluest peaks in $g' - I_{\rm c}$ colour variations tend to coincide with the brightness minima of the superhump modulations. We also studied nightly-averaged superhump amplitudes in $g'$, $R_{\rm c}$, and $I_{\rm c}$ bands and found that they have less dependence on wavelength. These properties are likely to be in common with dwarf novae exhibiting superhumps. We successfully obtained $g' - R_{\rm c}$ and $R_{\rm c} - I_{\rm c}$ colours during the temporal dip. The colour indices were significantly bluer compared with other dips of WZ Sge-type dwarf novae. By using the period of the growing superhumps, we estimated the mass ratio to be $q$ = 0.077(5), which is much larger than the previous study.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
