Volume 413, Number 3, January III 2004
|Page(s)||1177 - 1181|
|Section||Atomic, molecular, and nuclear data|
|Published online||07 January 2004|
Laboratory and radio-astronomical spectroscopy of the hyperfine structure of N2D*
Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, 40126 Bologna, Italy
2 INAF - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125 Firenze, Italy e-mail: email@example.com
3 Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Corresponding author: L. Dore, firstname.lastname@example.org
Accepted: 30 September 2003
We present the first laboratory measurements of the hyperfine structure of the rotational transition of , a good tracer of the dense regions of molecular cloud cores, and the spectra of unresolved high J transitions recorded in the 308-463 GHz region. Together with a high sensitivity radio-astronomical spectrum of the rotational transition in a quiescent cloud core, we determined with high precision the frequencies of the seven hyperfine components and the molecular spectroscopic constants, allowing us to make predictions on the frequencies of higher J transitions occurring in the submillimeter-wave region.
Key words: molecular data / methods: laboratory / ISM: individual: L183 / molecules / radio lines: ISM
© ESO, 2004
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