2016A&A...586A..17M


Query : 2016A&A...586A..17M

2016A&A...586A..17M - Astronomy and Astrophysics, volume 586A, 17-17 (2016/2-1)

Rotational spectra of isotopic species of methyl cyanide, CH3CN, in their v8 = 1 excited vibrational states.

MUELLER H.S.P., DROUIN B.J., PEARSON J.C., ORDU M.H., WEHRES N. and LEWEN F.

Abstract (from CDS):

Methyl cyanide is an important trace molecule in space, especially in star-forming regions where it is one of the more common molecules used to derive kinetic temperatures. We want to obtain accurate spectroscopic parameters of minor isotopologs of methyl cyanide in their lowest excited v8=1 vibrational states to support astronomical observations, in particular, with interferometers such as ALMA. The laboratory rotational spectrum of methyl cyanide in natural isotopic composition has been recorded from the millimeter to the terahertz regions. Transitions with good signal-to-noise ratios could be identified for the three isotopic species CH313CN, 13CH3CN, and CH3C15N up to about 1.2 THz (J''≤66). Accurate spectroscopic parameters were obtained for all three species. The present data were already instrumental in identifying v8=1 lines of methyl cyanide with one 13C in IRAM 30m and ALMA data toward Sagittarius B2(N).

Abstract Copyright:

Journal keyword(s): molecular data - methods: laboratory: molecular - techniques: spectroscopic - radio lines: ISM - ISM: molecules - astrochemistry

Simbad objects: 14

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Number of rows : 14
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 [JCC87] IRAS 2A Y*O 03 28 55.55 +31 14 36.7           ~ 435 3
2 RAFGL 618 pA* 04 42 53.6242032600 +36 06 53.400902220   16.32   12.59   C-rich 985 0
3 NAME OMC-1 MoC 05 35 14 -05 22.4           ~ 1118 2
4 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2176 1
5 [RLK73] IRc 2 IR 05 35 14.51548 -05 22 30.5943           ~ 612 1
6 IRAS 16293-2422 cor 16 32 22.56 -24 28 31.8           ~ 1177 1
7 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13192 0
8 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 3954 3
9 [QSR2011] Sgr B2(N)-SMA2 cor 17 47 19.885 -28 22 13.29           ~ 66 0
10 [BMG2016] Sgr B2(N1) cor 17 47 19.889 -28 22 18.22           ~ 41 0
11 NAME Sgr B2 (North) Rad 17 47 20.2 -28 22 21           ~ 610 1
12 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2122 1
13 NAME Large Molecule Heimat MoC 17 47 20.4943 -28 22 11.656           ~ 120 0
14 OH 34.26 +0.15 SFR 18 53 18.54 +01 14 57.9           ~ 484 0

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2022.10.03-05:13:14

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