Letter

• Extending the correlation of LR − LX to gamma-ray bursts

  Jing Lü, Jing-Wen Xing, Yuan-Chuan Zou, Wei-Hua Lei, Qing-Wen Wu, Ding-Xiong Wang

  

  617-622

Research Papers

• Numerical simulation of radio signal from extended air showers

  Wei Liu, Xuelei Chen

  

  623-645

• Second post-Minkowskian order harmonic metric for a moving Kerr-Newman black hole

  Guan-Sheng He, Wen-Bin Lin

  

  646-650

• The fundamental plane relation of early-type galaxies: environmental dependence

  Lei Hou, Yu Wang

  

  651-662

• The relationship between the properties of PAHs and AGN activities in type-I AGNs

  Qi-Chen Feng, Jing Wang, Hua-Li Li, Jian-Yan Wei

  

  663-672

• High resolution deep imaging of a bright radio quiet QSO at z ~ 3

  Yi-Ping Wang, Wei He, Toru Yamada, Ichi Tanaka, Masanori Iye, Tuo Ji

  

  673-686

• Model simulation for periodic double-peaked outbursts in blazar OJ 287: binary black hole plus lighthouse effect

  Shan-Jie Qian

  

  687-712

• On the central symmetry of the circumstellar envelope of RS Cnc

  Pham Tuyet Nhung, Do Thi Hoai, Jan Martin Winters, Pierre Darriulat, Eric Gérard, Thibaut Le Bertre

  

  713-724

• Singlet pairing gaps of neutrons and protons in hyperonic neutron stars

  Yan Xu, Cheng-Zhi Liu, Cun-Bo Fan, Xing-Wei Han, Xiao-Jun Zhang, Ming-Feng Zhu, Hong-Yan Wang, Guang-Zhou Liu

  

  725-732

• Variable stars in the open cluster NGC 2141

  Yang-Ping Luo

  

  733-741

• Statistical analysis of geomagnetic field variations during the partial solar eclipse on 2011 January 4 in Turkey

  Abdullah Ateş, Yunus Levent Ekinci, Aydin Buyuksarac, Attila Aydemir, Alper Demirci

  

  742-752

• Electron content near the lunar surface using dual-frequency VLBI tracking data in a single lunar orbiter mission

  Zhen Wang, Na Wang, Jin-Song Ping

  

  753-763

• Correction and simulation of the intensity compensation algorithm used in curvature wavefront sensing

  Zhi-Xu Wu, Hua Bai, Xiang-Qun Cui

  

  764-772