通过早期宇宙中复杂有机分子探索尘埃外流的物理
星系天体物理
2025-10-14 v1
摘要
星系规模的外流对星系形成与演化至关重要。尘埃颗粒是构成星际尘埃中所需分子场所，也是加速外流的重要因素，这些外流可以冲走对星际质量增长至关重要的气体储备。利用运载太空望远镜 (JWST) 上 MIRI 中分辨率中等的积分光谱仪，我们在一颗红移 4.601 的热尘埃遮蔽星系中检测到 3.28 μm 芳香族和 3.4 μm 烷基烃尘埃特征，吸收方式为红移。从该星系的系统红移中，尘埃被蓝移 ΔV=-5250^{+276}_{-339} km s^{-1}。尘埃的极高速度表明，这场风被来自中心类鲁宾星的辐射压力所加速。这些结果为探索活跃星系在早期宇宙时期尘埃外流的物理提供了一种新方法。
引用
@article{arxiv.2510.09870,
title = {Probing the Physics of Dusty Outflows through Complex Organic Molecules in the Early Universe},
author = {Andrey Vayner and Tanio Díaz-Santos and Carl D. Ferkinhoff and Peter R. M. Eisenhardt and Daniel Stern and Lee Armus and Brandon S. Hensley and Daniel Anglés-Alcázar and Roberto J. Assef and Román Fernández Aranda and Andrew W. Blain and Hyunsung D. Jun and Norman W. Murray and Shelley Wright and Chao-Wei Tsai and Thomas Lai and Niranjan Chandra Roy and Drew Brisbin and Manuel Aravena and Jorge González-López and Guodong Li and Mai Liao and Devika Shobhana and Jingwen Wu and Dejene Zewdie},
journal= {arXiv preprint arXiv:2510.09870},
year = {2025}
}
备注
47 pages, 9 figures, 2 tables, submitted. Comments are welcome!