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Complex Organic Molecules in Comets from Remote-Sensing Observations at Millimeter Wavelengths
ACS Earth and Space Chemistry ( IF 2.9 ) Pub Date : 2019-06-20 00:00:00 , DOI: 10.1021/acsearthspacechem.9b00130 Nicolas Biver 1 , Dominique Bockelée-Morvan 1
ACS Earth and Space Chemistry ( IF 2.9 ) Pub Date : 2019-06-20 00:00:00 , DOI: 10.1021/acsearthspacechem.9b00130 Nicolas Biver 1 , Dominique Bockelée-Morvan 1
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Remote observations of comets, especially using high spectral resolution millimeter spectroscopy, have enabled the detection of over 25 molecules in comets for the last 20 years. Among the molecules identified at radio wavelengths, complex organic molecules (COMs), such as acetaldehyde, ethylene glycol, formamide, methyl formate, or ethanol, have been observed in several comets and their abundances relative to water and methanol have been precisely determined. Significant upper limits on the abundance of several other COMs have been determined and put constraints on the dominant isomer for three of them. The abundances measured in comets are generally of comparable order of magnitude to those measured in star-forming regions, suggesting that comets contain preserved material from the presolar cloud from which the solar system was born.
中文翻译：
毫米波中遥感的彗星中复杂的有机分子
在过去的20年中，对彗星的远程观察，特别是使用高光谱分辨率毫米波光谱学，已经能够检测到彗星中的25种以上分子。在以无线电波长识别的分子中，已在数颗彗星中观察到复杂的有机分子（COM），例如乙醛，乙二醇，甲酰胺，甲酸甲酯或乙醇，并且已精确确定了它们相对于水和甲醇的丰度。确定了其他几个COM的丰度上限，并限制了其中三个的主要异构体。用彗星测得的丰度通常与在恒星形成区域测得的数量级相当，这表明，彗星含有来自太阳系诞生前太阳云的保存物质。
更新日期：2019-06-20
中文翻译：
毫米波中遥感的彗星中复杂的有机分子
在过去的20年中，对彗星的远程观察，特别是使用高光谱分辨率毫米波光谱学，已经能够检测到彗星中的25种以上分子。在以无线电波长识别的分子中，已在数颗彗星中观察到复杂的有机分子（COM），例如乙醛，乙二醇，甲酰胺，甲酸甲酯或乙醇，并且已精确确定了它们相对于水和甲醇的丰度。确定了其他几个COM的丰度上限，并限制了其中三个的主要异构体。用彗星测得的丰度通常与在恒星形成区域测得的数量级相当，这表明，彗星含有来自太阳系诞生前太阳云的保存物质。
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