Detection of interstellar (C-12)(N-15)

Details Detection of interstellar (C-12)(N-15) Detection of interstellar (C-12)(N-15)

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...414l.133s&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 414, no. 2, p. L133-L136.

Other

5

Cyanides, Electron Transitions, Interstellar Matter, Nitrogen 15, Ground State, Molecular Energy Levels, Molecular Rotation, Molecular Spectra, Radio Telescopes

Scientific paper

We report the first detection of the C(N-15) isotopomer in Orion A with the KOSMA 3 m radio telescope on Gornergrat, Switzerland. Using our newly designed SIS receiver, we detected the strongest feature of the hyperfine pattern of the N = 2 - 1 rotational transition at 219.9 GHz. The frequency predictions used for the lowest three electronic ground-state rotational lines and the N = 2 - 1 transition in particular are based on an in-depth estimate of the molecule's rotational, spin-doubling, and magnetic hyperfine constants. The isotopic ratio (N-14)/(N-15) was derived from a comparison of the optically thin hyperfine components of the C(N-14) species with the C(N-15) transitions and found to be 290 +/- 40, in close agreement with values quoted in the literature for other nitrogen-bearing molecules.

Affiliated with

Also associated with

No associations

Rating

Detection of interstellar (C-12)(N-15) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Detection of interstellar (C-12)(N-15), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of interstellar (C-12)(N-15) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1560667