This paper reports the discovery of an Algol system KIC 10736223 that just past the rapid mass transfer stage. From the light curve and radial-velocity modelling we find KIC 10736223 to be a detached Algol system with the less-massive secondary nearly filling its Roche lobe. Based on the short-cadence Kepler data, we analyzed intrinsic oscillations of the pulsator and identified six secured independent $\delta$ Scuti-type pulsation modes ($f_{1}$, $f_3$, $f_{9}$, $f_{19}$, $f_{42}$, and $f_{48}$). We compute two grids of theoretical models to reproduce the $\delta$ Scuti freqiencies, and find fitting results of mass-accreting models meet well with those of single-star evolutionary models. The fundamental parameters of the primary star yielded with asteroseismology are $M$ = $1.57^{+0.05}_{-0.09}$ $M_{\odot}$, $Z$ = 0.009 $\pm$ 0.001, $R$ = $1.484^{+0.016}_{-0.028}$ $R_{\odot}$, $\log g$ = $4.291^{+0.004}_{-0.009}$, $T_{\rm eff}$ = $7748^{+230}_{-378}$ K, $L$ = $7.136^{+1.014}_{-1.519}$ $L_{\odot}$. The asteroseismic parameters match well with the dynamical parameters derived from the binary model. Moreover, our asteroseismic results show that the pulsator is an almost unevolved star with an age between 9.46-11.65 Myr for single-star evolutionary models and 2.67-3.14 Myr for mass-accreting models. Thereofore, KIC 10736223 may be an Algol system that has just undergone the rapid mass-transfer process.

中文翻译：

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KIC 10736223：刚刚经历了快速传质阶段的Algol型日食双星

本文报告了刚刚通过快速传质阶段的 Algol 系统 KIC 10736223 的发现。从光变曲线和径向速度模型我们发现 KIC 10736223 是一个分离的 Algol 系统，质量较小的次级几乎充满了它的罗氏瓣。基于短节奏开普勒数据，我们分析了脉动器的内在振荡，并确定了六种安全独立的 $\delta$ Scuti 型脉动模式（$f_{1}$、$f_3$、$f_{9}$、$ f_{19}$、$f_{42}$ 和 $f_{48}$）。我们计算了两个理论模型网格来重现 $\delta$ Scuti 频率，并发现质量增加模型的拟合结果与单星演化模型的拟合结果很好。星震学产生的主星的基本参数是 $M$ = $1.57^{+0.05}_{-0.09}$ $M_{\odot}$, $Z$ = 0.009 $\pm$ 0.001, $R$ = 1 美元。484^{+0.016}_{-0.028}$ $R_{\odot}$, $\log g$ = $4.291^{+0.004}_{-0.009}$, $T_{\rm eff}$ = $7748^ {+230}_{-378}$ K，$L$ = $7.136^{+1.014}_{-1.519}$ $L_{\odot}$。星震参数与从二元模型导出的动力学参数匹配良好。此外，我们的星震结果表明，脉动器是一颗几乎未演化的恒星，单星演化模型的年龄在 9.46-11.65 Myr 之间，质量吸积模型的年龄在 2.67-3.14 Myr 之间。因此，KIC 10736223 可能是一个刚刚经历了快速传质过程的 Algol 系统。我们的星震结果表明，脉动器是一颗几乎未演化的恒星，单星演化模型的年龄在 9.46-11.65 Myr 之间，质量吸积模型的年龄在 2.67-3.14 Myr 之间。因此，KIC 10736223 可能是一个刚刚经历了快速传质过程的 Algol 系统。我们的星震结果表明，脉动器是一颗几乎未演化的恒星，单星演化模型的年龄在 9.46-11.65 Myr 之间，质量吸积模型的年龄在 2.67-3.14 Myr 之间。因此，KIC 10736223 可能是一个刚刚经历了快速传质过程的 Algol 系统。