Letter

• Three Super Active Regions in the Descending Phase of Solar Cycle 23

  Hong-Qi Zhang, Xing-Ming Bao, Yin Zhang, Ji-Hong Liu, Shu-Dong Bao, Yuan-Yong Deng, Wei Li, Jie Chen, Jin-Ping Dun, Jiang-Tao Su, Juan Guo, Xiao-Fan Wang, Ke-Liang Hu, Gang-Hua Lin, Dong-Guang Wang

  

  491-494

• Discovery of an Optical Jet in the Rosette Nebula: Rosette HH2

  Jin-Zeng Li

  

  495-498

Research Paper

• Vertical Scale Parameter Estimates for 48 Non-edge-on Spiral Galaxies

  Jun Ma

  

  499-504

• The Two Mini-lobes of the CSO OQ208 --- VLBI Observations at 5 GHz and 8.4 GHz

  Wei-Hua Wang, Xiao-Yu Hong, Tao An

  

  505-512

• The Binary Black Hole Scenario for the BL Lacertae Object AO 0235+16

  G. E. Romero, Jun-Hui Fan, S. E. Nuza

  

  513-525

• Extinction of Beamed Gamma-ray Burst Afterglows in a Dense Circumstellar Cloud

  Shun-Lin Liang, Zi-Gao Dai, Yong-Feng Huang, Tan Lu

  

  526-534

• Strange Stars: Can Their Crust Reach the Neutron Drip Density?

  Hai Fu, Yong-Feng Huang

  

  535-542

• Spectral Properties of Anomalous X-ray Pulsars

  Ye Lu, Wei Wang, Yong-Heng Zhao

  

  543-550

• The Chemical Classification of the AGB Star IRAS 17515--2407

  Pei-Sheng Chen, Pin Zhang

  

  551-554

• Magnetic Energy of Force-Free Fields with Detached Field Lines

  Guo-Qiang Li, You-Qiu Hu

  

  555-562

• Verification of Short-Term Predictions of Solar Soft X-ray Bursts for the Maximum Phase (2000--2001) of Solar Cycle 23

  Cui-Lian Zhu, Jia-Long Wang

  

  563-568

• A Check on the Variations of Earth's Rotation with an Ancient Solar Eclipse

  Yan-Ben Han, Qi-Yuan Qiao

  

  569-575

• A Tilt-correction Adaptive Optical System for the Solar Telescope of Nanjing University

  Chang-Hui Rao, Wen-Han Jiang, Cheng Fang, Ning Ling, Wei-Chao Zhou, Ming-De Ding, Xue-Jun Zhang, Dong-Hong Chen, Mei Li, Xiu-Fa Gao, Tian Mi

  

  576-586

• Wavelet Analysis of Space Solar Telescope Images

  Xi-An Zhu, Sheng-Zhen Jin, Jing-Yu Wang, Shu-Nian Ning

  

  587-596