The ground-state rotational spectra of HCO+, N2H+ and CF+ (both (12)C- and (13)C-containing isotopologues) have been recorded in the 1.0 - 1.6 THz frequency range. The present measurements allowed us to improve the spectroscopic parameters, which in turn enable the prediction of rotational transitions up to 2.0-2.5 THz with a good accuracy. We therefore consider the present results of great value in view of the extended spectral coverage opened up by the Herschel Space Observatory, Stratospheric Observatory for Infrared Astronomy, and Atacama Large Millimeter Array. Furthermore, we re-investigated the ground-state rotational spectrum of N2H+ in the 93 - 750 GHz frequency range, thus addressing the open issue of the frequency of the J = 1
G. Cazzoli, L. Cludi, G. Buffa, C. Puzzarini (2012). Precise THz measurements of HCO+, N2H+ and CF+ for astrophysical observations. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 203, 11/1-11/9 [10.1088/0067-0049/203/1/11].
Precise THz measurements of HCO+, N2H+ and CF+ for astrophysical observations
CAZZOLI, GABRIELE;CLUDI, LINO;PUZZARINI, CRISTINA
2012
Abstract
The ground-state rotational spectra of HCO+, N2H+ and CF+ (both (12)C- and (13)C-containing isotopologues) have been recorded in the 1.0 - 1.6 THz frequency range. The present measurements allowed us to improve the spectroscopic parameters, which in turn enable the prediction of rotational transitions up to 2.0-2.5 THz with a good accuracy. We therefore consider the present results of great value in view of the extended spectral coverage opened up by the Herschel Space Observatory, Stratospheric Observatory for Infrared Astronomy, and Atacama Large Millimeter Array. Furthermore, we re-investigated the ground-state rotational spectrum of N2H+ in the 93 - 750 GHz frequency range, thus addressing the open issue of the frequency of the J = 1I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
