Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...428l..37b&link_type=abstract
The Astrophysical Journal, vol. 428, no. 1, pt. 1, p. L37-L40
Astronomy and Astrophysics
Astrophysics
22
Far Infrared Radiation, Fine Structure, Interstellar Matter, Magnetic Resonance, Hyperfine Structure, Nitrogen
Scientific paper
The far-infrared laser magnetic resonance spectra associated with both fine-structure transitions in (N-14)+ in its ground P-3 state have been recorded. This is the first laboratory observation of the J = 1 left arrow 0 transition and its frequency has been determined two orders of magnitude more accurately than previously. The remeasurement of the J = 2 left arrow 1 spectrum revealed a small error in the previous laboratory measurements. The fine-structure splittings (free of hyperfine interactions) determined in this work are (delta)E10 = 1461.13190 (61) GHz, (delta)E21 = 2459.38006 (37) GHz. Zero-field transition frequencies which include the effects of hyperfine structure have also been calculated. Refined values for the hyperfine constants and the gJ factors have been obtained.
Brown Jonathan M.
Cooksy Andrew Lloyd
Evenson Kenneth M.
Varberg Thomas D.
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