AI 中文总结
研究通过对TMC - 1 CP等的分子线调查扩充星际分子清单，探讨其形成途径，利用示踪剂探测物理条件，借助JWST研究冰化学，发现TMC - 1 CP和L1544是代表性实验室，扩展发现对理解星际化学调节云到恒星行星路径至关重要。
AI 中文摘要
近期分子线调查，尤其是针对无恒星核心TMC - 1 CP的调查，极大地扩充了星际分子清单，揭示了众多异构体甚至芳香族物种。其多样的形成途径，从离子 - 分子反应到碳质颗粒的可能破碎，仍存争议，这将化学与星际介质生命周期联系起来。利用碳链和氘化离子等简单示踪剂探测附近丝状结构和核心以及大质量红外暗云的物理条件和演化状态。冰化学也因詹姆斯·韦布空间望远镜（JWST）进入新时代：冰的空间分布表明在恒星前核心L1544中确立的灾难性冻结与复杂有机分子形成之间存在联系。总体而言，TMC - 1 CP和L1544并非异类，而是分子云物理和化学的代表性实验室。将这些发现扩展到从中央分子区到低金属丰度星系的各种环境，对于统一理解星际化学如何调节从云到恒星和行星的路径至关重要。
英文摘要
Recent molecular line surveys, particularly toward the starless core TMC-1 CP, have greatly expanded the inventory of interstellar molecules, revealing numerous isomers and even aromatic species. Their diverse formation pathways---from ion-molecule reactions to the possible fragmentation of carbonaceous grains---remain under debate, linking chemistry to the life cycle of the interstellar medium. Simple tracers such as carbon chains and deuterated ions are used to probe the physical conditions and evolutionary state of nearby filaments and cores, as well as in massive infrared dark clouds. Ice chemistry has also entered a new era with JWST: spatial distributions of ices indicate a connection between catastrophic freeze-out, established in the prestellar core L1544, and formation of complex organic molecules. Overall, TMC-1 CP and L1544 are not outliers but representative laboratories of molecular cloud physics and chemistry. Extending these findings across diverse environments, from the Central Molecular Zone to low-metallicity galaxies, is essential for a unified picture of how interstellar chemistry regulates the path from clouds to stars and planets.
CommentsTo be published in Annual Review of Astronomy and Astrophysics. 49 pages and 10 figures in main text. 28 pages and 4 Tables in Supplemental Material
Journal refAnnual Review of Astronomy and Astrophysics 2026. 64:673-716
DOI：10.1146/annurev-astro-051024-031607
