Research Paper

• Local sunspot oscillations and umbral dots

  Yuzef Zhugzhda, Robert Sych

  

  105

• Orbital period changes of the W UMa binary YY Eri

  Ting Yu, Ke Hu, Yunxia Yu, Fu-Yuan Xiang

  

  106

• Upgraded photometric system on the 85-cm telescope at Xinglong station

  Chun-Hai Bai, Jian-Ning Fu, Tao-Ran Li, Zhou Fan, Jiang-Hua Wu, Yong Zhao, Xian-Qun Zeng, Wen-Zhao Zhang, Peng Qiu, Guo-Jie Feng, Xiao-Jun Jiang

  

  107

• The pc-scale radio structure of MIR-observed radio galaxies

  Ye Yuan, Min-Feng Gu, Yong-Jun Chen

  

  108

• Searching for γ-ray counterparts to very faint X-ray transient neutron star binaries

  Ge-Ge Wang, Zhong-Xiang Wang

  

  109

• Investigating the efficiency of the Beijing Faint Object Spectrograph and Camera (BFOSC) of the Xinglong 2.16-m reflector

  Yong Zhao, Zhou Fan, Juan-Juan Ren, Liang Ge, Xiao-Ming Zhang, Hong-Bin Li, Hui-Juan Wang, Jian-Feng Wang, Peng Qiu, Xiao-Jun Jiang

  

  110

• Mapping the emission line strengths and kinematics of supernova remnant S147 with extensive LAMOST spectroscopic observations

  Juan-Juan Ren, Xiao-Wei Liu, Bing-Qiu Chen, Mao-Sheng Xiang, Hai-Bo Yuan, Yang Huang, Hua-Wei Zhang, Chun Wang, Zhi-Jia Tian, Gao-Chao Liu, Hong Wu

  

  111

• Photometry and spectroscopy of II Peg, IM Peg and UX Ari

  Ajaz Ahmad Dar, Padmakar Singh Parihar, Manzoor Ahmad Malik

  

  112

• The mass of the Galactic dark matter halo from ∼9000 LAMOST DR5 K giants

  Meng Zhai, Xiang-Xiang Xue, Lan Zhang, Cheng-Dong Li, Gang Zhao, Cheng-Qun Yang

  

  113

• Extracting 21 cm signal by frequency and angular filtering

  Qi-Zhi Huang, Feng-Quan Wu, Reza Ansari, Xuelei Chen

  

  114

• A novel hexapod and its prototype for secondary mirror alignment in telescopes

  De-Hua Yang, Ying Cheng, Chang-Cheng Wu, Fei Fei, Zhen-Yu Jin

  

  115

• NSVS 01286630: a detached binary with a close-in companion

  Bin Zhang, Sheng-Bang Qian, Wen-Ping Liao, Li-Ying Zhu, Ai-Jun Dong, Qi-Jun Zhi

  

  116

• An explanation for the peculiar periphery of supernova remnant G309.2–0.6

  Huan Yu, Jun Fang

  

  117