论文标题

金牛座(ALMA-DOT)中磁盘输出源的Alma化学调查V:磁盘分子发射的样品,概述和人口统计

ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT) V: Sample, overview, and demography of disk molecular emission

论文作者

Garufi, Antonio, Podio, Linda, Codella, Claudio, Fedele, Davide, Bianchi, Eleonora, Favre, Cecile, Bacciotti, Francesca, Ceccarelli, Cecilia, Mercimek, Seyma, Rygl, Kazi, Teague, Richard, Testi, Leonardo

论文摘要

我们介绍了金牛座(Alma-Dot)中磁盘流源的Alma化学调查概述,该活动致力于从部分嵌入的年轻恒星中表征分子发射的表征。该项目旨在更好地理解通过在行星形成时(小于1 Myr)的各种线探测磁盘的高分辨率图探测磁盘的高分辨率图。通过我们对六类I类/平面光源来源的观察,对九个不同的分子进行了调查。一系列随附的文章分析了特定的靶标和分子。在这里,我们描述了样本,并提供了结果的一般概述,重点是h $ _2 $ co,cs和CN的空间分布,列密度和丰度比。这项工作的结果是朝着磁盘化学演化表征的第一步,需要通过进一步观察到较少的例外磁盘和定制的热化学建模来补充。

We present an overview of the ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT), a campaign devoted to the characterization of the molecular emission from partly embedded, young stars. The project aims at better understanding the gaseous products that are delivered to planets by means of high-resolution maps of assorted lines probing disks at the time of the planet formation (less than 1 Myr). Nine different molecules are surveyed by our observations of six Class I/flat-spectrum sources. A series of accompanying articles analyze specific targets and molecules. Here we describe the sample and provide a general overview of the results, focusing on the spatial distribution, column densities, and abundance ratios of H$_2$CO, CS, and CN. The results of this work are a first step toward the characterization of the disk chemical evolution that need to be complemented by further observations of less exceptional disks and customized thermo-chemical modeling.

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