Understand the emergence, transfer and destruction of molecular complexity during star formation via deuterium astrochemistry studies

天体化学解决了现代天体物理学中的一些最重要的问题，并与人类社会有着巨大的相关性，因为它最终可能帮助我们理解太阳系中生命的出现。该领域正在进入一个新的跨学科时代，实验室科学、观测天文学和理论建模之间的密切互动。我建议在这里研究在低质量恒星形成过程中导致分子复杂性的化学过程。这个项目的长期最终目标是研究复杂分子的形成，以及它们在太阳型恒星形成的每个步骤中的生存或毁灭，从暗云到原恒星阶段，以及类似于我们自己的行星系统的形成，以及彗星。研究氚天体化学可以提供对这些过程的关键见解，并被选为可管理的第一步。这项研究具有很强的跨学科性质，因为它需要实验室研究(光谱学和化学反应研究)、天文观测和建模。该项目将利用Max-Planck-Institut für射电天文研究所的设施(APEX望远镜、索非亚仪器……)以及德国和欧洲资助的仪器(例如IRAM设施和Herschel卫星)，参与提高这些设施的科学产出，并将为利用ALMA干涉仪开发这一研究领域铺平道路。它可能会对河外天文学和早期宇宙的研究产生影响，因为它提供了新的调查方法。

Astrochemistry addresses some of the most important questions of modern astrophysics, and has a huge relevance to human society as it may ultimately help us to understand the emergence of life in the solar system. The field is entering a new, interdisciplinary era, with close interactions between laboratory science, observational astronomy and theoretical modeling. I propose here to investigate the chemical processes leading to molecular complexity during low-mass star formation. The longterm ultimate goal of this project is to study the formation of complex molecules, and their survival or destruction in each step of the formation of a solar-type star, from the dark cloud to the protostellar phase and the formation of a planetary system similar to our own, and comets. Studying deuterium astrochemistry can provide key insights into these processes, and is chosen as a manageable first step.This research is strongly interdisciplinary as it requires laboratory studies (both for spectroscopy and study of chemical reactions), astronomical observations and modeling. This project will make use of facilities of the Max-Planck-Institut für Radioastronomie (APEX telescope, SOFIA instruments...), as well as German and European funded instruments (e.g. the IRAM facilities and the Herschel satellite), participating in enhancing the scientific output from these facilities, and will pave the way for exploiting this area of research with the ALMA interferometer. It may have impacts on extragalactic astronomy and studies of the early universe by providing new methods of investigation.