Research Paper

• Pairwise Velocity Statistics of Dark Halos

  Hai-Yan Zhang, Yi-Peng Jing

  

  507-517

• The Correlation between Optical Spectral Index and Continuum Luminosity Variation in the Seyfert 1 Galaxy NGC 5548

  Min-Zhi Kong, Xue-Bing Wu, Jin-Lin Han, Yu-Feng Mao

  

  518-526

• A Peculiar Broad Line Radio Galaxy 1938--155: VLA Observation at 90 cm

  Tao An, Xiao-Yu Hong, Wen-Xia Feng, Jun-Hui Zhao

  

  527-532

• Superluminal Motion and Polarization in Blazars

  Jun-Hui Fan, Yong-Jiu Wang, Jiang-He Yang, Cheng-Yue Su

  

  533-540

• Global Axisymmetric Stability Analysis for a Composite System of Two Gravitationally Coupled Scale-Free Discs

  Yue Shen, Yu-Qing Lou

  

  541-552

• RT Leonis Minoris: an Unstable W Ursae Majoris System with a Spotted Component

  Yu-Lan Yang, Qing-Yao Liu

  

  553-562

• Formation of Solar Delta Active Regions: Twist and Writhe of Magnetic Ropes

  Hong-Qi Zhang

  

  563-577

• Wavelet Analysis of the Schwabe Cycle Properties in Solar Activity

  Gui-Ming Le

  

  578-582

• Timescale Analysis of Spectral Lags

  Ti-Pei Li, Jin-Lu Qu, Hua Feng, Li-Ming Song, Guo-Qiang Ding, Li Chen

  

  583-598

• Algorithm Design and Test of the Solar Guide Telescope

  Wei-Bin Wen, Sheng-Zhen Jin

  

  599-