2010A&A...514L...6M


Query : 2010A&A...514L...6M

2010A&A...514L...6M - Astronomy and Astrophysics, volume 514, L6-6 (2010/5-1)

Spectroscopic parameters and rest frequencies of isotopic methylidynium, CH+.

MUELLER H.S.P.

Abstract (from CDS):

Astronomical observations toward Sagittarius B2(M) as well as other sources with APEX have recently suggested that the rest frequency of the J=1-0 transitions of 13CH+ is too low by about 80 MHz. Improved rest frequencies of isotopologs of methylidynium should be derived to support analyses of spectral recording obtained with the ongoing Herschel mission or the upcoming SOFIA. Laboratory electronic spectra of four isotopologs of CH+ have been subjected to one global least-squares fit. Laboratory data for the J=1-0 ground state rotational transitions of CH+, 13CH+, and CD+, which became available during the refereeing process, have been included in the fit as well. An accurate set of spectroscopic parameters has been obtained together with equilibrium bond lengths and accurate rest frequencies for six CH+ isotopologs: CH+, 13CH+, 13CD+, CD+, 14CH+, and CT+. The present data will be useful for the analyses of Herschel or SOFIA observations of methylidynium isotopic species.

Abstract Copyright:

Journal keyword(s): molecular data - radio lines: ISM - submillimeter: ISM - ISM: molecules

Simbad objects: 3

goto Full paper

goto View the references in ADS

Number of rows : 3
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 NAME Sgr B2M Mas 17 47 20.13 -28 23 06.1           ~ 37 1
2 SNR G010.6-00.4 SNR 18 10 28 -19 55.8           ~ 56 0
3 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2375 1

To bookmark this query, right click on this link: simbad:objects in 2010A&A...514L...6M and select 'bookmark this link' or equivalent in the popup menu


2021.11.28-12:21:26

© Université de Strasbourg/CNRS

    • Contact