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OBSERVING PROCEDURE AND DATA ANALYSIS
HIGH RESOLUTION OBSERVATIONS OF H II REGIONS
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1974 field trip absolute flux aircraft arc minutes atmospheric transmission features bandpass beam Chapter configurations cooled grating data analysis derived determined dewar diluted to fit dust effect electron configurations electron density entrance slit error bars exit slit field effect transistor filter flight series grating position H II regions Harper infrared emission infrared excess infrared fine structure infrared lines ionized Lear Jet telescope Lear telescope line intensity long wavelength detector lunar calibrations March 1974 field March-April 1975 field measurements moon spectrum MOSFET noise ratio normally November 1974 field observations of M42 observed spectrum obtained offset signal optical depth optical forbidden lines Orion Nebula parameters Perkin Elmer Petrosian 1970 photon preamplifier problem roughly secondary mirror sensitivity shown in Figure signal levels signal to noise spec spectrometer Spectrum of M42 standard deviation structure lines taken from Simpson tions tropopause Venus water vapor Wavelength in Microns width zero order