Query : 2016A&A...592A..43B

2016A&A...592A..43B - Astronomy and Astrophysics, volume 592A, 43-43 (2016/8-1)

Millimeter wave spectra of carbonyl cyanide.


Abstract (from CDS):

Context. More than 30 cyanide derivatives of simple organic molecules have been detected in the interstellar medium, but only one dicarbonitrile has been found and that very recently. There is still a lack of high-resolution spectroscopic data particularly for dinitriles derivatives. The carbonyl cyanide molecule is a new and interesting candidate for astrophysical detection. It could be formed by the reaction of CO and CN radicals, or by substitution of the hydrogen atom by a cyano group in cyanoformaldehyde, HC(=O)CN, that has already been detected in the interstellar medium.
Aims. The available data on the rotational spectrum of carbonyl cyanide is limited in terms of quantum number values and frequency range, and does not allow accurate extrapolation of the spectrum into the millimeter-wave range. To provide a firm basis for astrophysical detection of carbonyl cyanide we studied its millimeter-wave spectrum.
Methods. The rotational spectrum of carbonyl cyanide was measured in the frequency range 152-308GHz and analyzed using Watson's A- and S-reduction Hamiltonians.
Results. The ground and first excited state of v5 vibrational mode were assigned and analyzed. More than 1100 distinct frequency lines of the ground state were fitted to produce an accurate set of rotational and centrifugal distortion constants up to the eighth order. The frequency predictions based on these constants should be accurate enough for astrophysical searches in the frequency range up to 500GHz and for transition involving energy levels with J≤100 and Ka≤42. Based on the results we searched for interstellar carbonyl cyanide in available observational data without success. Thus, we derived upper limits to its column density in different sources.

Abstract Copyright: © ESO, 2016

Journal keyword(s): ISM: molecules - ISM: abundances - submillimeter: ISM - molecular data - methods: laboratory: molecular - line: identification

VizieR on-line data: <Available at CDS (J/A+A/592/A43): table3.dat table4.dat>

Simbad objects: 7

goto Full paper

goto View the references in ADS

Number of rows : 7
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
1 [HKM99] B1-b cor 03 33 20.32 +31 07 21.5           ~ 187 0
2 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3973 0
3 TMC-1 MoC 04 41 45.9 +25 41 27           ~ 1537 0
4 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2166 1
5 [WLQ2014] MM4 cor 05 35 14.35 -05 22 30.9           ~ 9 0
6 NAME Sgr B2 (North) Rad 17 47 20.2 -28 22 21           ~ 608 1
7 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2116 1

To bookmark this query, right click on this link: simbad:objects in 2016A&A...592A..43B and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact