Kinetic inhibition of CO and N2 reduction in circumplanetary nebulae - Implications for satellite composition
Kinetic inhibition of CO and N2 reduction in circumplanetary nebulae - Implications for satellite composition
复制标题
环行星状星云中 CO 和 N2 还原的动力学抑制 - 对卫星组成的影响
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
B. Fegley
中科院分区：
文献类型：
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作者：
R. Prinn;B. Fegley
在太阳星云的最后，在类木行星的环行星云中，CO向CH/sub 4/和N/sub 2/向NH/sub 3/的转化相对于径向混合和星云冷却速率来说是足够快的，以至于CO和N/sub 2/在环行星云中是次要成分。因此，虽然类木行星可能从太阳星云中吸积了主要以CO和N/sub 2/形式存在的碳和氮，但这些物质随后在环行星云中被再加工，主要形成CH/sub 4/和NH/sub 3/。因此，在其环行星云的足够冷的部分中吸积的木星行星的土星被预测以笼形水合物的形式保留大量的NH/sub 3/和CH/sub 4/，以及非常小但化学上重要的HCN。
In constrast to the solar nebula, the conversion of CO to CH/sub 4/ and of N/sub 2/ to NH/sub 3/ in the circumplanetary nebulae of the Jovian planets is fast enough relative to radial mixing and nebula cooling rates that CO and N/sub 2/ are minor constituents in the circumplanetary nebulae. Thus, although the Jovian planets may have accreted carbon and nitrogen from the solar nebula mainly in the form of CO and N/sub 2/, these species were then reprocessed within the circumplanetary nebulae to form mainly CH/sub 4/ and NH/sub 3/. Satellites of the Jovian planets which accreted in sufficiently cool parts of their circumplanetary nebulae are therefore predicted to retain large amounts of NH/sub 3/ and CH/sub 4/ in the form of clathrate hydrates and also very small but chemical important amounts of HCN.