论文标题

研究嵌入光解离区域的热分子核心

Studying a hot molecular core embedded in a photodissociation region

论文作者

Martinez, N. C., Areal, M. B., Paron, S.

论文摘要

在第一个银河象限时,在L = 33.134,B = -0.091,是HII区域复合物产生的扩展光解离区域。该区域与丰富的分子气体,尤其是一种热分子核(称为G33.133-mm3)有关,似乎嵌入了分子块中。使用詹姆斯·克莱克·麦克斯韦(James Clerk Maxwell)望远镜的数据约为15英寸,我们研究了13co/c18o的丰度比上提到的分子团块及其与紫外线辐射的关系。在较小的空间尺度上,使用来自Atacama大阵列的数据,大约0.7 \ arec 33 hotcarly g3 hotcart arcartion 33 hotcarlox arcular arcarlay 33.大约是2600个AU,是一个适当的形成恒星的位置,特别是根据氰化物或硝酸根自由基(CN)的发射,以及其他更复杂的分子,例如CH3OH,CH3CN,CH3CN,CH3COCH和CH3CCH,提到了有关其化学的一些观点。

At the first Galactic quadrant, at l=33.134, b=-0.091, an extended photodissociation region generated by an HII region complex lies. This region is related to abundant molecular gas, and particularly, a hot molecular core, known as G33.133-mm3, appears embedded in a molecular clump. Using data from the James Clerk Maxwell Telescope with an angular resolution of about 15", we studied the 13CO/C18O abundance ratio towards the mentioned molecular clump and its relation with the ultraviolet radiation. At smaller spatial scales, using data from the Atacama Large Millimeter Array (angular resolution about 0.7\arcsec), the hot molecular core G33.133-mm3, that has a size of about 2600 au, and is an appropriate site to form stars, was characterized. In particular, some points about its chemistry are mentioned based on the emission of the cyanide or nitrile radical (CN) and others more complex molecules, such as CH3OH, CH3CN, CH3OCHO, and CH3CCH.

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