Methylacetylene (CH3CCH) and propene (C3H6) formation in cold dense clouds: A case of dust grain chemistry

Q2 Physics and Astronomy

Molecular Astrophysics Pub Date : 2016-04-01 DOI:10.1016/j.molap.2016.03.001

Kevin M. Hickson , Valentine Wakelam , Jean-Christophe Loison

引用次数: 30

Abstract

We present an extensive review of gas phase reactions producing methylacetylene and propene showing that these relatively abundant unsaturated hydrocarbons cannot be synthesized through gas-phase reactions. We explain the formation of propene and methylacetylene through surface hydrogenation of C₃ depleted onto interstellar ices, C₃ being a very abundant species in the gas phase.

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甲基乙炔(CH3CCH)和丙烯(C3H6)在冷致密云中的形成:一个尘埃颗粒化学的例子

我们提出了广泛的回顾气相反应产生甲基乙炔和丙烯表明这些相对丰富的不饱和烃不能通过气相反应合成。我们解释了丙烯和甲基乙炔的形成是通过耗尽在星际冰上的C3的表面氢化，C3是气相中非常丰富的物种。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Molecular Astrophysics ASTRONOMY & ASTROPHYSICS-

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期刊介绍： Molecular Astrophysics is a peer-reviewed journal containing full research articles, selected review articles, and thematic issues. Molecular Astrophysics is a new journal where researchers working in planetary and exoplanetary science, astrochemistry, astrobiology, spectroscopy, physical chemistry and chemical physics can meet and exchange their ideas. Understanding the origin and evolution of interstellar and circumstellar molecules is key to understanding the Universe around us and our place in it and has become a fundamental goal of modern astrophysics. Molecular Astrophysics aims to provide a platform for scientists studying the chemical processes that form and dissociate molecules, and control chemical abundances in the universe, particularly in Solar System objects including planets, moons, and comets, in the atmospheres of exoplanets, as well as in regions of star and planet formation in the interstellar medium of galaxies. Observational studies of the molecular universe are driven by a range of new space missions and large-scale scale observatories opening up. With the Spitzer Space Telescope, the Herschel Space Observatory, the Atacama Large Millimeter/submillimeter Array (ALMA), NASA''s Kepler mission, the Rosetta mission, and more major future facilities such as NASA''s James Webb Space Telescope and various missions to Mars, the journal taps into the expected new insights and the need to bring the various communities together on one platform. The journal aims to cover observational, laboratory as well as computational results in the galactic, extragalactic and intergalactic areas of our universe.