Extensive studies of Interstellar Matter and Star Formation Process from Multi-wavelength surveys of the Large Magellanic Cloud

麦哲伦星系是距离我们最近的星系之一，这种距离使我们能够以最高的分辨率观察星际介质、年轻的恒星物体等。它确实是最关键的目标之一，因为分子云被分解成分子云核--这对其他外部星系来说还不可能--使用地面射电望远镜。在这个项目中，我们进行了毫米和亚毫米高灵敏度观测，以观测分子云和云核，并推导出它们的结构和物理性质。我们还从最新的红外卫星观测中获得了星际尘埃的结构和性质。这些新的红外数据集对于获得年轻恒星物体的新数据库非常重要。对这些数据集的仔细比较使我们获得了关于星际介质的更深层次的知识，例如活动恒星形成和/或超巨壳对周围物质的影响，以及CO暗分子气体的某些存在。

The Magellanic system is one of the nearest galaxies to us and this proximity enables us to observe Interstellar Medium, young stellar objects and so on with highest resolution. It is indeed one of the most crucial targets since molecular clouds are resolved to molecular cloud cores - this is not possible for the other external galaxies yet - with the ground base radio telescopes. In this program, we conducted mm and submm high sensitivity observations to survey the molecular clouds and cloud cores, and derived their structure and physical properties. We also obtained the structure and properties of the interstellar dust from the most recent infrared satellite observations. These new infrared datasets are of important to obtain a new database of the young stellar objects. Careful comparisons of these datasets lead us to obtaine deeper knowledge of the interstellar medium, such as influence of active star formation and/or supergiant shells to the surrounding materials, as well as some existence of CO dark molecular gas.