Ehrenfreund P, Robert F, d'Hendecourt L
Groupe de Physique des Solides, Universite Paris 7, France.
Adv Space Res. 1992;12(4):53-6. doi: 10.1016/0273-1177(92)90153-o.
We present a comparison between the IR spectrum of the galactic center source IRS 7 and the spectrum of a carbonaceous polymer from the Orgueil meteorite. We have obtained an almost perfect match between the two spectra in the region between 3020-2790 cm-1, which suggests that the chemical composition of the interstellar organic matter and that of the meteorite polymer are similar or that the meteoritic polymer could be a well preserved interstellar organic molecule. Assuming that the meteoritic polymer has the same C/H ratio as these interstellar molecules, we find that 45 % of the total abundance of carbon in the line of sight toward IRS 7 is trapped in such an interstellar organic grain material.
我们对银河系中心源IRS 7的红外光谱与奥尔盖尔陨石中的碳质聚合物光谱进行了比较。在3020 - 2790 cm-1区域内，我们获得了这两种光谱之间几乎完美的匹配，这表明星际有机物与陨石聚合物的化学成分相似，或者陨石聚合物可能是保存完好的星际有机分子。假设陨石聚合物与这些星际分子具有相同的C/H比，我们发现朝向IRS 7视线方向上碳的总丰度中有45%被困在这种星际有机颗粒物质中。
