| 书目名称 | Physics and Chemistry of Comets | | 编辑 | Walter F. Huebner | | 视频video | | | 丛书名称 | Astronomy and Astrophysics Library | | 图书封面 |  | | 描述 | As this excellent book demonstrates, the study of comets has now reached the fas cinating stage where we understand comets in general simple tenns while, at the same time, we are uncertain about practically all the details of cometary nature, structure, processes, and origin. In every aspect, even including dynamics, a choice among several or many competing theories is made impossible simply by the lack of detailed knowledge. The space missions, snapshot studies of two comets, partic ularly the one that immortalizes the name of Sir Edmund Halley, have produced a huge mass of valuable new infonnation and a number of surprises. Nonetheless, we face the tantalizing realization that we have obtained only a fleeting glance at two of perhaps a hundred billion (lOll) or more comets with possibly differing natures, origins, and physical histories. To my personal satisfaction, comets seem to have discrete nuclei made up of dirty snowballs, as I concluded four decades ago, but perhaps they are more like frozen rubbish piles. | | 出版日期 | Textbook 1990 | | 关键词 | chemistry; evolution; geophysics; planet; planetary science; space physics | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-642-74805-9 | | isbn_softcover | 978-3-642-74807-3 | | isbn_ebook | 978-3-642-74805-9Series ISSN 0941-7834 Series E-ISSN 2196-9698 | | issn_series | 0941-7834 | | copyright | Springer-Verlag Berlin Heidelberg 1990 |
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发表于 2025-3-21 17:56:36
