Far infrared spectroscopy of H II regions

Details Far infrared spectroscopy of H II regions Far infrared spectroscopy of H II regions

Nov 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975phdt.........4w&link_type=abstract

Ph.D. Thesis Cornell Univ., Ithaca, NY. Center for Radiophysics and Space Research.

Physics

Far Infrared Radiation, H Ii Regions, H Lines, Infrared Spectroscopy, Emission Spectra, Gratings (Spectra), Lear Jet Aircraft, Spectroscopic Telescopes

Scientific paper

The far infrared spectra of H II regions are investigated. A liquid helium cooled grating spectrometer designed to make observations from the NASA Lear Jet is described along with tests of the instrument. The observing procedure on the Lear Jet telescope is described and the method of data analysis is discussed. Results are presented from a search for the (O III) 88.16 micron line. An upper limit on the emission in this line is obtained and line detection is described. Results are compared to theoretical predictions, and future applications of fine structure line observations are discussed. Coarse resolution results are given along with calibration problems. The spectra obtained are compared to models for dust emission.

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