通过谱匹配滤波探测两种星际多环芳烃
星系天体物理
2021-03-19 v1
摘要
普遍存在的未证认红外发射带在许多天文源中都能看到。尽管这些谱带被广泛（即便非一致地）归因于多环芳烃的集体发射，但该类化合物中尚无单一物种在太空中被探测到。我们展示了在谱匹配滤波辅助下于星际介质中发现两种—CN官能化多环芳烃，即1-和2-氰基萘。利用绿岸望远镜的射电观测，我们在分子云TMC-1中观测到这两种双环分子。我们讨论了由较小有机前体分子在原位气相中形成的可能路径。
引用
@article{arxiv.2103.09984,
title = {Detection of Two Interstellar Polycyclic Aromatic Hydrocarbons via Spectral Matched Filtering},
author = {Brett A. McGuire and Ryan A. Loomis and Andrew M. Burkhardt and Kin Long Kelvin Lee and Christopher N. Shingledecker and Steven B. Charnely and Ilsa R. Cooke and Martin A. Cordiner and Eric Herbst and Sergei Kalenskii and Mark A. Siebert and Eric R. Willis and Ci Xue and Anthony J. Remijan and Michael C. McCarthy},
journal= {arXiv preprint arXiv:2103.09984},
year = {2021}
}