DETECTION OF NITRIC-OXIDE IN THE DARK CLOUD L134N
Publication Date
1990
Journal or Book Title
ASTROPHYSICAL JOURNAL
Abstract
The first detection of interstellar nitric oxide (NO) in a cold dark cloud, L134N is reported. Nitric oxide was observed by means of its two 2 Pi 1/2, J = 3/2 - 1/2, rotational transitions at 150.2 and 150.5 GHz, which occur because of Lambda-doubling. The inferred column density for L134N is about 5 x 10 to the 14th/sq cm toward the SO peak in that cloud. This value corresponds to a fractional abundance relative to molecular hydrogen of about 6 x 10 to the -8th and is in good agreement with predictions of quiescent cloud ion-molecule chemistry. NO was not detected toward the dark cloud TMC-1 at an upper limit of 3 x 10 to the -8th or less.
DOI
https://doi.org/10.1086/169040
Pages
121-124
Volume
359
Issue
1
Recommended Citation
MCGONAGLE, D; ZIURYS, LM; Irvine, William M.; and MINH, YC, "DETECTION OF NITRIC-OXIDE IN THE DARK CLOUD L134N" (1990). ASTROPHYSICAL JOURNAL. 247.
https://doi.org/10.1086/169040
Comments
The published version is located at http://adsabs.harvard.edu/full/1990ApJ...359..121M