Millimeter-wave and Submillimeter-wave Spectra of Aminoacetonitrile in the Three Lowest Vibrational Excited States

被引：11

作者：

Esposti, Claudio Degli ^{[1
]}

Dore, Luca ^{[1
]}

Melosso, Mattia ^{[1
]}

Kobayashi, Kaori ^{[2
]}

Fujita, Chiho ^{[3
]}

Ozeki, Hiroyuki ^{[3
]}

机构：

[1] Univ Bologna, Dipartimento Chim Giacomo Ciamician, Via Selmi 2, I-40126 Bologna, Italy

[2] Univ Toyama, Dept Phys, Fac Sci, 3190 Gofuku, Toyama 9308555, Japan

[3] Toho Univ, Dept Environm Sci, Fac Sci, 2-2-1 Miyama, Funabashi, Chiba 2748510, Japan

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2017年 / 230卷 / 02期

关键词：

ISM: molecules; line: identification; molecular data; submillimeter: ISM; techniques: spectroscopic; INTERSTELLAR; SEARCH; GLYCINE; LMH;

D O I：

10.3847/1538-4365/aa7335

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is important to study possible precursors of amino acids such as glycine to enable future searches in interstellar space. Aminoacetonitrile (NH2CH2CN) is one of the most feasible molecules for this purpose. This molecule was already detected toward Sgr B2(N). Aminoacetonitrile has a few low-lying vibrational excited states, and transitions within these states may be found in space. In this study, the pure-rotational transitions in the three lowest vibrational states in the 80-450 GHz range have been assigned and analyzed. It was found to be very important to include Coriolis coupling between the two lowest vibrational fundamentals, while the third one was unperturbed. The partition function was evaluated considering these new results.

引用

页数：7

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