Astrochemistry provides powerful tools to understand various cosmic phenomena, including those in our solar system to the large-scale structure of the universe. In addition, the chemical property of an astronomical body is a crucial factor which governs the evolution of the system. Recent progress in astrophysical theories, computational modelings, and observational techniques requires a detailed understanding of the interactions between the constituents of an astronomical system, which are atoms and molecules within the system. Especially the far-infrared/sub-millimeter wave range, which is called as the last frontier in astronomical observations, contains numerous molecular lines, which may provide a huge amount of new information. However, we need an astrochemical understanding to use this information fully. Although this review is very limited, I would like to stress the importance of astrochemical approach in this overview for the field, which is getting much more attention than ever before.

ABSTRACT
1. 서론
2. 우주에서 확인된 성간분자들
3. 기본적인 화학반응식
    3.1. 가스 상태의 화학반응
    3.2. 먼지 표면의 화학반응
4. 천체들에서의 성간분자 연구에 대한 몇 가지 예
    4.1. 별 탄생 지역의 핫-코어에 대한 연구
    4.2. 행성 형성과 연관된 천체화학적 연구
    4.3. AGB 별들의 외곽 가스 구름에 대한 연구
5. 결론
참고 문헌

• 민영철(한국천문연구원) | Y. C. MINH (Korea Astronomy and Space Science Institute)