天　文　学　进　展



第17卷　第2期  1999年6月



目　　　　次



述　　　　评

天文常数中的相对论问题.......................................... 陶金河　黄天衣 ( 93)
IERS 1996规范在参考系方面的改进........................ .........夏一飞　萧耐园 (104)
IERS 1996规范中地球引力势模型和测量模型的改进................... 萧耐园　夏一飞 (113)
海潮模型的比较及海潮对地球自转变化的影响................. 顾震年 金文敬　王保卫 (126) 

                                    *     *     *     *     *

空间VLBI研究的现状和未来................................................ 万同山 (136) 

                                    *     *     *     *     *

黑洞吸积理论的新进展(I): ADAF吸积理论................................... 袁　峰 (148) 

                                    *     *     *     *     *

HIPPARCOS后的银河系距离尺度.............................................. 王家骥 (159)
赛弗特星系中的分子环.................................... 朱青峰　林宣滨　程福臻 (168)

讲　　　座
太阳系空间探测............................................................ 陈道汉 (178)



 PROGRESS IN ASTRONOMY



Vol.17　No.2   Jun.　1999 



 CONTENTS



REVIEWS



Relativistic Problems on Astronomical Constants.............................Tao Jinhe, Huang Tianyi (102)

Improvements of Reference System Field in the IERS 1996 Conventions

............................................................................Xia Yifei, Xiao Naiyuan (112)

Improvements of the Geopotential and Measurement Models in the IERS 1996 Conventions

............................................................................Xiao Naiyuan, Xia Yifei (125)

The Comparison among  Ocean Tide Models and the Ocean Tide Effect on the Earth Rotation

..............................................................Gu Zhennian, Jin Wenjing, Wang Baowei (135)

                                    *     *     *     *     *

The Present and Future of Space VLBI....................................................Wan Tongshan (146)

                                    *     *     *     *     *

The Progress in the Theory of Accretion onto a Black Hole (I): ADAF Accretion Theory
.......................................................................................... Yuan Feng (158)

                                    *     *     *     *     *

Post--Hipparcos Galactic Distance Scales...................................................Wang Jiaji (167)
Molecular Torus in Seyfert Galaxies.......................... Zhu Qingfeng, Lin Xuanbin, Cheng Fuzhen (177)

LECTURES

Space Exploration of the Solar System .....................................................Chen Daohan (184) click here for the TWXJZ.