Topics of Magnetic Field and Turbulence in Star Formation
不論考慮巨型分子雲或原恆星盤的形成,磁流體湍流對於理解恆星形成發揮重要的作用。在第一章中,我們概述磁場和湍流的基本特性。在第二章中,我們提出對密集的分子雲的偏振洞"現象解釋。利用詹姆斯克拉克麥克斯韋望遠鏡和毫米波天文組合陣研究望遠鏡偏振數據庫,我們嘗試解釋在密集的分子雲觀察到的低熱塵埃偏振比率是由湍流引致而無法被解析的磁場結構。由干涉儀望遠鏡觀察到高偏振率的現象,我們排除了塵埃在密集的分子雲對齊能力降低假說。在第三章,我們呈上最近對貓掌星雲氰化氫(HCN)/羧甲基正離子(HCO+)J= 4 - 3的觀察。配合李氏等人在不同尺度和密度測量的磁場強度,我們對雙極擴散理論進行測試。我們的分...
Other Authors: | Tang, Kwok Sun (author.) |
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Format: | Others |
Language: | English Chinese |
Published: |
2016
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Subjects: | |
Online Access: | http://repository.lib.cuhk.edu.hk/en/item/cuhk-1292339 |
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