论文标题
两种触点二进制文件的光度研究：CRTS J025408.1+265957和CRTS J012111.1+272933
A photometric study of two contact binaries: CRTS J025408.1+265957 and CRTS J012111.1+272933
论文作者
论文摘要
我们对两个接触二进制的新光度观测（即CRTS J025408.1+265957和CRTS J012111.1+272933）进行了新的光度观测，这些观测值是由1.0-m望远镜在Xingjiangastonomic observatory处观察到的。根据我们的光曲线和几个调查数据，我们得出了几组光度溶液。我们发现CRTS J025408.1+265957和CRTS J012111.1+272933分别是Aand W型W uma。结果表明，该点在两个接触二进制中迁移或消失，这些接触二进制是通过Lamost光谱中的色球活性发射（例如Hα发射）鉴定出来的。从O-C曲线来看，两个接触二进制的轨道周期可能会增加，这是通过从较不质量分量到较大的质量转移来解释的。随着传质的转移，两个接触二进制物可能会从接触构型变为半检测的接触二进制，如热弛豫振荡理论所预测的。
We performed new photometric observations for two contact binaries (i.e., CRTS J025408.1+265957 and CRTS J012111.1+272933), which were observed by the 1.0-m telescope at Xingjiang Astronomical Observatory. From our light curves and several survey data, we derived several sets of photometric solutions. We found that CRTS J025408.1+265957 and CRTS J012111.1+272933 were Aand W-type W UMa, respectively. The results imply that the spot migrates or disappears in two contact binaries, which were identified by chromospheric activity emissions (e.g. Hα emission) from LAMOST spectra. From the O-C curves, the orbital periods of two contact binaries may be increasing, which is interpreted by the mass transfer from the less massive component to the more massive one. With mass transferring, two contact binaries may evolve from the contact configurations to semi-detected ones as predicted by the theory of thermal relaxation oscillation.
