14:10 〜 14:35
[MIS02-02] Astrochemistry and molecular composition in protoplanetary disks
★Invited Papers
キーワード：宇宙化学、アルマ望遠鏡、原始惑星系円盤、スノーライン、分子、有機物
Planets form and obtain their compositions in protoplanetary disks around young stars. The chemical compositions of gas and solid dust grains in these planet-forming disks will decide planetary compositions including water and organic molecules, which relate planet's habitability. Chemical structures in protoplanetary disks are determined by a combination of in situ chemical reactions and inheritance from molecular clouds and protostellar envelopes. In addition, positions of "snowlines" always influence planet formation, since they determine the elemental content of solids and gas at different locations in protoplanetary disks.
Recently, in addition to updates in theoretical studies, astronomical observations with ALMA (Atacama Large Millimeter/submillimeter Array) have investigated the spatial distributions of volatiles (C/N/O) and detected organic molecules in protoplanetary disks. In this review talk, we introduce some research topics (mainly ALMA observations) about astrochemistry and molecular composition in protoplanetary disks, and also discuss future prospects in this field and connections with planetary systems.
Recently, in addition to updates in theoretical studies, astronomical observations with ALMA (Atacama Large Millimeter/submillimeter Array) have investigated the spatial distributions of volatiles (C/N/O) and detected organic molecules in protoplanetary disks. In this review talk, we introduce some research topics (mainly ALMA observations) about astrochemistry and molecular composition in protoplanetary disks, and also discuss future prospects in this field and connections with planetary systems.