Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...194...41f&link_type=abstract
Astrophysical Journal, vol. 194, Nov. 15, 1974, pt. 1, p. 41, 42.
Astronomy and Astrophysics
Astronomy
3
Electron Transitions, Hyperfine Structure, Interstellar Gas, Microwave Emission, Molecular Spectra, Nitrogen Compounds, Hydrogen Compounds, Line Spectra, Molecular Energy Levels, Nuclear Quadrupole Resonance, Oxygen Compounds, Radio Astronomy
Scientific paper
A 65-m telescope, a 9-cm parametric receiver, and a 64-channel spectrometer with filters of 33-kHz bandwidth were used to search for the 1(10)-1(11) transition of HNO in the direction of Sgr B2, Sgr A1, W51, and RCW 38. The frequencies of the hyperfine components of this transition were predicted using rotational, centrifugal distortion, and nitrogen nuclear quadrupole coupling constants derived from the analysis of microwave transitions at higher frequencies. Upper limits in antenna temperature for regions explored ranged from 0.02 K to 0.1 K. At present it is not possible, on the basis of information on conditions and processes in the interstellar medium, to translate the antenna-temperature limit of this study into an upper limit on the molecular column number density.
Brown David R.
Crofts J. G.
Fourikis N.
Godfrey Peter D.
Sinclair Malcolm W.
No associations
LandOfFree
A search for interstellar nitroxyl /HNO/ 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 A search for interstellar nitroxyl /HNO/, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A search for interstellar nitroxyl /HNO/ will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1763009