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THE TRANSFER OF THE SOLAR ANGULAR MOMENTUM TO THE INTERPLANETARY FIELD BY MEANS OF THE COROAL EXPANSION

Li Zhong-yuan1, Cheng Zong-yi2, Mo Guo-biao1   

  1. 1. Department of Earth and Space Science, University of Science and Technology of China, Hefei 230026;
    2. Shanghai Observatory, Academia Sinica
  • Received:1990-10-29 Revised:1900-01-01 Online:1992-04-24 Published:1992-04-24

Abstract: In the paper,the feature of angular momentum in the coronal expansion is discussed.According to the calculation of data on the Type-I cometary tails,the tangential component of coronal expansion is verified;not only it has a stochastic change,but also it has a confirmed value (9.8km/s).Since the solar evolution reached to the main sequence stage,the sun lost the 80% of its angular momentum,thus the angular velocity of its rotation is reducing by the power index law.

Key words: Global positioning system, High Earth Orbital (HEO) satellite, Maximum Likelihood(ML) estimation, Near-far problem