| Issue |
A&A
Volume 413, Number 3, January III 2004
|
|
|---|---|---|
| Page(s) | 1177 - 1181 | |
| Section | Atomic, molecular, and nuclear data | |
| DOI | https://doi.org/10.1051/0004-6361:20034025 | |
| Published online | 07 January 2004 | |
Laboratory and radio-astronomical spectroscopy of the
hyperfine structure
of N2D
*
1
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: caselli@arcetri.astro.it
3
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Corresponding author: L. Dore, dore@ciam.unibo.it
Received:
30
June
2003
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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