期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 56, 期 18, 页码 4920-4929出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201612117
关键词
astrochemistry; astronomy; diffuse interstellar bands; fullerenes; spectroscopy
资金
- Swiss National Science Foundation
- European Research Council Advanced Grant (ElecSpecIons)
In 1985 the football structure of C-60, buckminsterfullerene was proposed and subsequently confirmed following its macroscopic synthesis in 1990. From the very beginning the role of C-60 and C-60(+) in space was considered, particularly in the context of the enigmatic diffuse interstellar bands. These are absorption features found in the spectra of reddened star light. The first astronomical observations were made around one hundred years ago and despite significant efforts none of the interstellar molecules responsible have been identified. The absorption spectrum of C-60(+) was measured in a 5 K neon matrix in 1993 and two prominent bands near 9583 angstrom and 9645 angstrom were observed. On the basis of this data the likely wavelength range in which the gas phase C-60(+) absorptions should lie was predicted. In 1994 two diffuse interstellar bands were found in this spectral region and proposed to be due to C-60(+). It took over 20 years to measure the absorption spectrum of C-60(+) under conditions similar to those prevailing in diffuse clouds. In 2015, sophisticated laboratory experiments led to the confirmation that these two interstellar bands are indeed caused by C-60(+), providing the first answer to this century old puzzle. Here, we describe the experiments, concepts and astronomical observations that led to the detection of C-60(+) in interstellar space.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据