典型文献
A Photometric Study of Two Contact Binaries:CRTS J025408.1+265957 and CRTS J012111.1+272933
文献摘要：
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 A-and W-type W UMa, respectively. The results imply that the spot migrates or disappears in the two contact binaries, which were identified by chromospheric activity emissions (e.g., Hαemission) from LAMOST spectra. From the O?C curves, the orbital periods of the 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, the two contact binaries may evolve from the contact configurations to semi-detached ones as predicted by the theory of thermal relaxation oscillation.
文献关键词：
中图分类号：
作者姓名：
Shuo Ma;Jin-Zhong Liu;Yu Zhang;Qingshun Hu;Guo-Liang Lü
作者机构：
Xinjiang Astronomical Observatory,Chinese Academy of Sciences,Urumqi 830011,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Physical Science and Technology,Xinjiang University,Urumqi 830064,China
文献出处：
引用格式：
[1]Shuo Ma;Jin-Zhong Liu;Yu Zhang;Qingshun Hu;Guo-Liang Lü-.A Photometric Study of Two Contact Binaries:CRTS J025408.1+265957 and CRTS J012111.1+272933)[J].天文和天体物理学研究,2022(09):223-238
A类：
Binaries,J025408,1+265957,J012111,1+272933,binaries,Xingjiang,Astronomical,UMa,chromospheric
B类：
Photometric,Study,Two,Contact,CRTS,We,performed,new,photometric,observations,two,contact,which,were,observed,by,telescope,Observatory,From,our,light,curves,several,survey,data,derived,sets,solutions,found,that,type,respectively,results,imply,spot,migrates,disappears,identified,activity,emissions,from,LAMOST,spectra,orbital,periods,may,be,increasing,interpreted,less,massive,component,more,With,transferring,evolve,configurations,semi,detached,ones,predicted,theory,thermal,relaxation,oscillation
AB值：
0.425966
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
