Observations of far-infrared fine structure lines - Forbidden O III 88.35 microns and forbidden O I 63.2 microns

Details Observations of far-infrared fine structure lines - Forbidden O III 88.35 microns and forbidden O I 63.2 microns Observations of far-infrared fine structure lines - Forbidden O III 88.35 microns and forbidden O I 63.2 microns

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...233..109s&link_type=abstract

Astrophysical Journal, Part 1, vol. 233, Oct. 1, 1979, p. 109-118.

Astronomy and Astrophysics

Astrophysics

35

Far Infrared Radiation, Fine Structure, Infrared Spectra, Line Spectra, Nebulae, Oxygen Spectra, Astronomical Maps, Continuous Spectra, High Resolution, Infrared Spectrometers, Oxygen Ions, Positive Ions, Stellar Spectra

Scientific paper

Results are presented for observations of the fine-structure lines of forbidden O III at 88.35 microns and forbidden O I at 63.2 microns in a number of sources by means of an airborne far-IR spectrometer. The sources M17, NGC 7538, and W51 are mapped in the forbidden O III line with a resolution of 1 arcmin, and the emission peak is found to coincide with the maximum radio continuum in all cases. The far-IR continuum is simultaneously mapped where possible; the continuum peak is shown to be distinct from the center of ionization in the same three sources. The forbidden O III line is also detected in W3, W49, and several positions in M42 (Orion). The forbidden O I line is detected in M17, in M42, and marginally in DR 21. An unsuccessful search for the J = 1-0 transition of HD at 112 microns in the direction of the Kleinmann-Low nebula is also reported.

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