SIMBAD references

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

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2016A&A...586A..17M and select 'bookmark this link' or equivalent in the popup menu


2020.10.26-23:16:46

© Université de Strasbourg/CNRS

    • Contact