文章基本信息

标题：Implementation of polytropic method to study initial structures of gas giant protoplanets
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作者：Gour Chandra Paul ; Mrinal Chandra Barman ; Abdul Al Mohit 等
期刊名称：NRIAG Journal of Astronomy and Geophysics
印刷版ISSN：2090-9977
电子版ISSN：2090-9985
出版年度：2014
卷号：3
期号：2
页码：163-169
DOI：10.1016/j.nrjag.2014.10.003
语种：English
出版社：Elsevier
摘要：AbstractIn this paper we have determined the initial structures of gas giant protoplanets, formed via disk instability, having a mass range of 0.3–10 Jupiter masses by the simple polytropic method. The polytropic protoplanets or polytropes have been assumed to be spheres of solar composition, each of which is in a steady state of quasi-static equilibrium, where the only source of energy is the gravitational contraction of the gas. The results of our calculations for the polytropes with polytropic indicesn=1 andn=1.5 are found to be closer to reality and are in good agreement with the findings obtained by other investigations with more rigorous treatment of the problem.
关键词：KeywordsExtrasolar planetsPolytropeInitial structureJupiter