Astronomy and Astrophysics – Astronomy
Scientific paper
May 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...198...71t&link_type=abstract
Astrophysical Journal, vol. 198, May 15, 1975, pt. 1, p. 71-89.
Astronomy and Astrophysics
Astronomy
69
Cyanogen, Interstellar Radiation, Microwave Spectra, Radio Sources (Astronomy), Cyanoacetylene, Free Radicals, H Ii Regions, Hyperfine Structure, Millimeter Waves, Molecular Spectra, Quadrupoles
Scientific paper
Seven of the nine hyperfine lines in the 2.6-mm K = 1 to 0 transition of CN have been observed in many interstellar sources. CN is detected in the direction of infrared sources (with and without associated H II regions), toward at least one star which shows interstellar lines of CH and CH(+), toward several objects regarded as protostellar in nature, but not in dark dust clouds or in several strong sources of HCN and HC3N. Hyperfine transition frequencies are accurately determined by assuming CN velocities are those of several other millimeter-wavelength molecules in the 22 sources we have detected (of 45 searched). New, more accurate values are derived for the rotation constant, spin-doubling constants, and magnetic hyperfine and electric quadrupole coupling constants for the CN radical.
Gammon R. H.
Turner Barry E.
No associations
LandOfFree
Interstellar CN at radio wavelengths 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 Interstellar CN at radio wavelengths, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interstellar CN at radio wavelengths will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1048091